The AP358 series consists of two independent, high gain, internally frequency compensated operational amplifiers which were designed specifically to operate from a single
AP358
( Top View )
2
8
1
OUTPUT 1 V+
power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage.
INVERTING INPUT 1
NON-INVERTING INPUT 1
GND
3
4
SOP-8L
OUTPUT 2
6
7
INVERTING INPUT 2
5
NON-INVERTING INPUT 2
Application areas include transducer amplifiers, dc gain blocks and all the conventional op amp circuits which now can be more easily implemented in single power supply systems.
AP358
( Top View )
2
8
1
OUTPUT 1 V+
For example, the AP358 series can be directly operated off of the standard +5V power supply voltage which is used in digital systems and will easily provide the required interface electronics without requiring the additional ±15V power supply.
INVERTING INPUT 1
NON-INVERTING INPUT 1
GND
3
4
PDIP-8L
OUTPUT 2
6
7
INVERTING INPUT 2
5
NON-INVERTING INPUT 2
Internally frequency compensated for unity gain
Large dc voltage gain: 100 dB
Very low supply current drain (500μA)-essentially independent of supply voltage
Wide bandwidth (unity gain): 1 MHz (temperature compensated)
Input common-mode voltage range includes ground
Differential input voltage range equal to the power supply voltage
Low input offset voltage: 2mV
Wide power supply range:
Single supply: 3V to 32V
Or dual supplies: ±1.5V to ±16V
Large output voltage swing: 0V to V+ - 1.5V
Lead Free packages: SOP-8L and PDIP-8L
SOP-8L and PDIP-8L: Available in “Green” Molding Compound (No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
Eliminate the need for dual supplies
Compatible with all forms of logic
Two internally compensated op amps
Low power drain suitable for battery operation
Allows direct sensing near GND and VOUT also goes to GND
In the linear mode the input common-mode voltage range includes ground and the output voltage can also swing to ground, even though operated from only a single power supply voltage.
The unity gain cross frequency is temperature compensated.
The input bias current is also temperature compensate.
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html.
Typical Single-Supply Circuit (V+=5.0VDC)
Non-Inverting DC Gain ( 0V Output )
+VIN * +
1/2 AP358
VO (Volts)
-
+VO
+5V
R2
1M GAIN=1+ R2
R1 R1
10K
=101(as shown)
*R not needed due to temperature independent IIN
VIN (mV)
R 100K
+V1 +
R1 910K
+V2
R 100K
R 100K
R 100K
1/2 AP358 VO
-
R2 100K
R3 91K
V+
-
1/2 AP358
V
+V3
+V4 R
O
R
+VIN +
L
R 100K
100K
V =0 V
for V
= 0 V
Where: VO=V1+V2-V3-V4
(V1+V2) > (V3+V4) to keep VO > 0 VDC
O DC IN DC
AV =10
DC Summing Amplifier (VIN'S > 0 VDC and VO > 0 VDC)
Power Amplifier
R1
- 100K
C2 330pF
R2 100K
1/2 AP358
R7 470K
VIN
R3 100K
+
C1 330pF
R4 10M
-
R5 470K
-
1/2 AP358
+
VO
fO= 1KHz Q = 50
1/2 AP358
+
R6 100K
C3 + 10F
R8 100K
V+
"BI-QUAD" RC Active Bandpass Filter
Typical Single-Supply Circuit (Continued) (V+=5.0VDC)
R1
+ 2K 2V
-
V+
+
2V R3 R4
- 2K 2K
VL
R2 100
R1* I
0.1 L
RL
+
- 1/2 AP358
1/2 AP358 -
+ I1 I2 R2 1mA
3K
R3 VO
VO =
1V(IL)
0.1A
I1 = I2
Fixed Current Sources
1K *(Increase R1 for IL small) VL < V+ -2V
Current Monitor
V+
20mA
30mA
> 20
1/2 AP358
82
+
1/2 AP358
100
600mA
LED Driver
+
Lamp Driver
-
1/2 AP358
+
RL 240
+VIN
-
1/2 AP358 VO
+
0.001F
R3 100K
V+
R4 100K
Driving TTL
R1
1M IN914
R2
100K IN914
-
1/2 AP358 VO
+ +
R5 0
100K
VO = VIN
C 0.001F
R2 100K
V+
R3 100K
Voltage Follower
R1 100K
-
1/2 AP358 VO
+ +
R4 0
100K
Pulse Generator
Squarewave Oscillator
Typical Single-Supply Circuit (Continued) (V+=5.0VDC)
IB
+VIN
ZIN
-
1/2 AP358
+
C
1F
2N929*
*hi AT 100 nA
-
I
1/2 AP358
B
+
2IB
0.001F
VO
ZOUT
(POLYCARBONATE OR POLYETHYLENE)
HIGH ZIN LOW ZOUT
IB
2IB 3R
3M
R
IM IB
Low Drift Peak Detector
+
1/2 AP358
- AUX AMP
INPUT CURRENT COMPENSATION
R2 0.01F
R1 30K
-
IN914
+VIN
IO
+
1/2 AP358
150K
V+
R3 100K
R4 100K
1/ 2 AP358 VO
+ +
R5 0
100K
Pulse Generator
-
L
R
IO =0.1 amp / volt VIN 10
(increase RE for IOsmall)
High Compliance Current Sink
R 100K
0.05F
-
+VC*
R/2 50K
51K
1/2 AP358
+
51K
V+/2 51K
-
1/2 AP358
+
OUTPUT1
10K
*WIDE CONTROL VOLTAGE RANGE: 0 VDC < VC < 2 (V+ -1.5VDC)
100K
OUTPUT2
Voltage Controlled Oscillator (VCO)
Typical Single-Supply Circuit (Continued) (V+=5.0VDC)
+VIN
R1
-
1/2 AP358
VO V
CIN
+
R1 10K
Rf 10K
-
0 3 Vpp
CO
+VREF
10K
+ R2
IN 1/2 AP358
R2 +
RB 6.2K
VO
RL 10K
10M
100K R3
V+ +
C1
10μF
100K
AV=
Rf
R1 (As shown, AV=10)
Comparator with Hysteresis
R1 1M
R1 100K
AC Coupled Inverting Amplifier
R2 1M
R2
+ 1M
VR R
+
1/2 AP358 VO
-
C1 0.1μF
-
1/2 AP358
0 3 Vpp
V
CO
O
- R3 R4
1M 1M
+V
CIN
+
+ R3 R4
RB 6.2K
RL 10K
CM VIN
V =V
1M 100K
+ V+
C2 R5
AV=11(As Shown)
R2
A =1+
O R
10μF
100K
V R1
Ground Referencing a Differential Input Signal
AC Coupled Non-Inverting Amplifier
VIN
R1 16K
R2 16K
C2 0.01μF
C1 0.01μF
+
1/2 AP358
-
V
R3 100K
O
VO
R1 100K
+V1
+V2
R2 100K
-
1/2 AP358
+
R3 100K
R4 100K
-
1/2 AP358
+
VO
fO = 1KHz
R1 R4
For =
(CMRR depends on this resistor ratio match)
Q = 1 R4 R2 R3
AV=2
100K 0 f
R4
O
V = (1+
)(V -V )
O R3 2 1
DC Coupled Low-Pass RC Active Filter
As Shown: VO = 2(V2-V1)
High Input Z, DC Differential Amplifier
Typical Single-Supply Circuit (Continued) (V+=5.0VDC)
VIN
R1 390K
R2
C1 0.01μF
C2 0.01μF
R3
680
R4 390K
-
1/2 AP358
R5 39K
-
R6 120K
620K
fO= 1.12KHz
C3+ 10μF
+
R7 100K
R8 100K
V+
1/2 AP358 VO
+
Q = 25
Bandpass Active Filter
R2 100K
-
R3 100K
R4 100K
-
I I 1/2 AP358
+VO
+V1
R1
1/2 AP358
+
-
IN B
+VIN +
IB
2K GAIN ADJUST
R5 100K
-
1/2 AP358
1/2 AP358
+
R6 R7
VO 2N929*
*hi β AT 50 nA
IB
0.001μF
I
B
2R
3M
-
1/2 AP358
+V2 +
100K
100K
R IB
+
AUX AMP
If R1 = R5 & R3 = R4 = R6 = R7 (CMRR depends on match) 2R2
1.5M
INPUT CURRENT COMPENSATION
R
VO =( 1+ )(V2-V1)
1
As Shown: VO = 101(V2-V1)
High Input Z Adjustable-Gain DC Instrumentation Amplifier
Using Symmetrical Amplifiers to Reduce Input Current (General Concept)
OUTPUT 1 1
8 V +
INVERTING INPUT 1 2
A B
7 OUTPUT 2
NON-INVERTING INPUT 1 3
- + + -
6 INVERTING INPUT 2
GND 4 5
NON-INVERTING INPUT 2
R 100K
0.05μF
-
+VC*
R/2 51K
51K
1/2 AP358
+
51K
V+/2
51K
-
1/2 AP358
+
100K
OUTPUT1
OUTPUT2
10K
Pin Name | Pin # | Description |
OUTPUT 1 | 1 | Channel 1 Output |
INVERTING INPUT 1 | 2 | Channel 1 Inverting Input |
NON-INVERTING INPUT 1 | 3 | Channel 1 Non-inverting Input |
GND | 4 | Ground |
NON-INVERTING INPUT 2 | 5 | Channel 2 Non-inverting Input |
INVERTING INPUT 2 | 6 | Channel 2 Inverting Input |
OUTPUT 2 | 7 | Channel 2 Output |
V+ | 8 | Chip Supply Voltage |
Symbol | Parameter | Rating | Unit | |
VCC | Supply voltage | 32 | V | |
Differential Input Voltage | 32 | V | ||
VIN | Input Voltage | -0.3 to +32 | V | |
PD | Power Dissipation (Note 2) | 600 | mW | |
Output Short-Circuit to GND (One Amplifier) (Note 3) | V+ < 15V and TA=25oC | Continuous | ||
Input Current (VIN < -0.3V) (Note 4) | 40 | mA | ||
TOP | Operating Temperature Range | 0 to +70 | oC | |
TST | Storage Temperature Range | -65 to +150 | oC |
Notes: 2. For operating at high temperatures, the AP358 must be derated based on a +125°C maximum junction temperature and a thermal resistance of 120°C/W for DIP and 189°C/W for Small Outline package, which applies for the device soldered in a printed circuit board, operating in a still air ambient. The dissipation is the total of both amplifiers—use external resistors, where possible, to allow the amplifier to saturate or to reduce the power which is dissipated in the integrated circuit.
Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output current is approximately 40mA independent of the magnitude of V+. At values of supply voltage in excess of +15V, continuous short-circuits can exceed the power dissipation ratings and cause eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers.
This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the op amps to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value greater than -0.3V (at 25°C).
Electrical Characteristics (TA = 25oC, V+ = +5.0V, unless otherwise stated) (Note 5)
Symbol | Parameter | Conditions | Min | Typ. | Max | Unit | |
VIO | Input Offset Voltage | TA = 25oC, (Note 6) | - | 2 | 7 | mV | |
IB | Input Bias Current | IIN(+) or IIN(−), TA = 25°C, VCM = 0V, (Note 7) | - | 45 | 250 | nA | |
IIO | Input Offset Current | IIN(+) - IIN(−),VCM = 0V, TA = 25°C | - | 5 | 50 | nA | |
VICM | Input Common-Mode Voltage Range | V+ = 30V, (Note 8) TA = 25°C | 0 | - | V+ -1.5 | V | |
IS | Supply Current Over Full Temperature Range | RL = ∞ on All Op Amps | V+ = 30V | - | 1 | 2 | mA |
V+ = 5V | - | 0.5 | 1.2 | ||||
AV | Large Signal Voltage Gain | V+ = 15V, TA = 25°C, RL > 2kΩ, (For VO = 1V to 11V) | 25 | 100 | - | V/mV | |
CMRR | Common-Mode Rejection Ratio | TA = 25°C, VCM = 0V to V+ -1.5V | 65 | 85 | - | dB | |
PSRR | Power Supply Rejection Ratio | V+ = 5V to 30V, TA = 25°C | 65 | 100 | - | dB | |
Amplifier-to-Amplifier Coupling | f = 1KHz to 20 KHz, TA = 25°C (Input Referred), (Note 9) | - | -120 | - | dB |
Notes: 5. The AP358 temperature specifications are limited to 0°C < TA < +70°C.
VO 1.4V, RS = 0Ω with V+ from 5V to 30V; and over the full input common-mode range (0V to V+ -1.5V) at 25°C.
The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so no loading change exists on the input lines.
The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (at25°C). The upper end of the common-mode voltage range is V+ -1.5V (at 25°C), but either or both inputs can go to +32V without damage, independent of the magnitude of V+.
Due to proximity of external components, insure that coupling is not originating via stray capacitance between these external parts. This typically can be detected as this type of capacitance increases at higher frequencies.
Symbol | Parameter | Conditions | Min | Typ. | Max | Unit | |
ISINK | Output Current | Sink | V - = 1V, V + = 0V, V+ = IN IN 15V, VO = 2V, TA = 25°C | 10 | 20 | - | mA |
V - = 1V, V + = 0V, V+ = IN IN 15V, VO = 200mV, TA = 25°C | 20 | 70 | - | μA | |||
ISOURCE | Source | V + = 1V, V - = 0V, V+ = IN IN 15V, VO = 2V, TA = 25°C | 20 | 40 | - | mA | |
ISC | Short Circuit to Ground | TA = 25°C, (Note 3) V+ = 15V | - | 40 | 60 | mA | |
VOH | Output Voltage Swing | (V+=30V) | RL = 2kΩ, TA = 25oC | 26 | - | - | V |
RL = 10kΩ, TA = 25oC | 27 | 28 | - | V | |||
VOL | (V+=5V) | RL = 10kΩ, TA = 25oC | - | 5 | 20 | mV |
Notes: 3. Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output current is approximately 40mA independent of the magnitude of V+. At values of supply voltage in excess of +15V, continuous short-circuits can exceed the power dissipation ratings and cause eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers.
100
75
50
Temperature(℃)
0 25
V+=+5VDC
V+=+30VDC
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
Supply Current vs Temperature
Output Current(Isink) vs Temperature
120
100
CH1
80
CH2
60
40
20
0
0 25 50 75 100
Temperature(℃)
V+=15V VIN-=1V VIN+=0V
VO=200mV
Output Current(Isink) vs Temperature
18
15 CH1
CH2
12
9
6
3
0
V+=15V VIN-=1V VIN+=0V VO=2V
25
1
0
V+=+30VDC
2
V+=+15VDC
3
V+=+5VDC
4
VCM=0VDC
0 25 50 75 100
Temperature(℃)
VCM=0VDC
V+=+30VDC
V+=+15VDC
V+=+5VDC
80
70
60
50
40
30
20
10
0
0 25 50 75 100
Temperature(℃)
V+=+5VDC
V+=+30VDC
V+=+15VDC
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Output Sink Current(μADC)
Input offset Voltage(mV)
Input offset Current(nA)
Supply Current(mA)
Output Sink Current(mADC)
IB-Input Current(nADC)
Input offset Voltage vs Temperature
Input Current vs Temperature
5
Input offset Current vs Temperature
0
50
Temperature(℃)
75
100
0 25
50
Temperature(℃)
75
100
1k 10k 25K 50K 75K 100K 500K 1M
Input Frequency (Hz)
+15
VDC VO
2K
DC
1K
+7V
Large Signal Frequency Response
100K
14
12
10
8
6
4
2
0
Supply Current
1.4
1.2
1
0.8
0.6
0.4
0.2
0
5 10 15 20 25 30 35
Supply Voltage(V)
-
+
Supply Current Drain(mA)
Vo - Output Voltage (Vp-p)
Current Limit
0
25
50
Temperature(℃)
100
75
10
0
+
IO
50
40
30
20
-
+
IOUT-Current Drain(mA)
Voltage Follower Pulse Response Voltage Follower Pulse Response (Small Signal)
The AP358 series are op amps which operate with only a single power supply voltage, have true-differential inputs, and remain in the linear mode with an input common-mode voltage of 0 VDC. These amplifiers operate over a wide range of power supply voltage with little change in performance characteristics. At 25°C amplifier operation is possible down to a minimum supply voltage of 2.3 VDC.
Precautions should be taken to insure that the power supply for the integrated circuit never becomes reversed in polarity or that the unit is not inadvertently installed backwards in a test socket as an unlimited current surge through the resulting forward diode within the IC could cause fusing of the internal conductors and result in a destroyed unit.
Large differential input voltages can be easily accommodated and, as input differential voltage protection diodes are not needed, no large input currents result from large differential input voltages. The differential input voltage may be larger than V+ without damaging the device. Protection should be provided to prevent the input voltages from going negative more than -0.3 VDC (at 25°C). An input clamp diode with a resistor to the IC input terminal can be used.
To reduce the power supply current drain, the amplifiers have a class A output stage for small signal levels which converts to class B in a large signal mode. This allows the amplifiers to both source and sink large output currents. Therefore both NPN and PNP external current boost transistors can be used to extend the power capability of the basic amplifiers. The output voltage needs to raise approximately 1 diode drop above ground to bias the on-chip vertical PNP transistor for output current sinking applications.
For ac applications, where the load is capacitively coupled to the output of the amplifier, a resistor should be used, from the output of the amplifier to ground to increase the class A bias current and prevent crossover distortion. Where the load is directly coupled, as in dc applications, there is no crossover distortion.
Capacitive loads which are applied directly to the output of the amplifier reduce the loop stability margin. Values of 50pF can be accommodated using the worst-case non-inverting unity gain connection. Large closed loop gains or resistive isolation should be used if larger load capacitance must be driven by the amplifier.
The bias network of the AP358 establishes a drain current which is independent of the magnitude of the power supply voltage over the range of 3 VDC to 30 VDC.
Output short circuits either to ground or to the positive power supply should be of short time duration. Units can be destroyed, not as a result of the short circuit current causing metal fusing, but rather due to the large increase in IC chip dissipation which will cause eventual failure due to excessive function temperatures. Putting direct short-circuits on more than one amplifier at a time will increase the total IC power dissipation to destructive levels, if not properly protected with external dissipation limiting resistors in series with the output leads of the amplifiers. The larger value of output source current which is available at 25°C provides a larger output current capability at elevated temperatures (see typical performance characteristics) than a standard IC op amp.
The circuits presented in the section on typical applications emphasize operation on only a single power supply voltage. If complementary power supplies are available, all of the standard op amp circuits can be used. In general, introducing a pseudo-ground (a bias voltage reference of V+/2) will allow operation above and below this value in single power supply systems. Many application circuits are shown which take advantage of the wide input common-mode voltage range which includes ground. In most cases, input biasing is not required and input voltages which range to ground can easily be accommodated.
Package
S : SOP-8L
L : Lead Free
Packing
Lead Free
U : Tube
N : PDIP-8L G : Green 13 : Tape & Reel
Device | Package Code | Packaging (Note 10) | Tube | 13” Tape and Reel | ||
Quantity | Part Number Suffix | Quantity | Part Number Suffix | |||
AP358SL-13 | S | SOP-8L | NA | NA | 2500/Tape & Reel | -13 |
AP358SG-13 | S | SOP-8L | NA | NA | 2500/Tape & Reel | -13 |
AP358NL-U | N | PDIP-8L | 60 | -U | NA | NA |
AP358NG-U | N | PDIP-8L | 60 | -U | NA | NA |
Lead-free
Lead-free
Notes: 10. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
SOP-8L
(Top View)
8
7
6
5
Logo Part Number
YY : Year : 08, 09,10~ WW : Week : 01~52; 52
represents 52 and 53 week
X : Internal Code G : Green
4
L : Lead Free
3
2
1
PDIP-8L
(Top View)
8
7
6
5
Logo Part Number
3
2
1
YY : Year : 08, 09,10~ WW : Week : 01~52; 52
represents 52 and 53 week
X : Internal Code G : Green
4
L : Lead Free
Package type: SOP- 8L
3.85/3.95
1.75max. 5.90/6.10
0.10/0.20
Detail "A"
0.254
0.62/0.82
Gauge Plane Seating Plane
7°~9°
0.35max. 45°
7°~9°
1.27typ 0.3/0.5
4.85/4.95
Detail "A"
1.30/1.50
0.15/0.25
0°/8°
5.4
8x-0.60
8x-1.55
6x-1.27
Land Pattern Recommendation (Unit: mm)
Package type: PDIP- 8L
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
Life support devices or systems are devices or systems which:
are intended to implant into the body, or
support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user.
A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2010, Diodes Incorporated
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Diodes Incorporated: