EVALUATION KIT AVAILABLE
The MAX4480–MAX4483 low-cost, general-purpose op amps offer rail-to-rail outputs, draw only 50μA of quies- cent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4481 offers a low-power shutdown mode that reduces supply current to 0.5μA (max) and puts the amplifier’s output in a high-impedance state. These devices are unity-gain stable with capacitive loads up to 400pF. The MAX4480– MAX4483 are specified to +125°C, making them suitable for use in a variety of harsh environments.
The MAX4480 is a single amplifier offered in a tiny 5-pin SC70 package. The MAX4481 is a single amplifier with a low-power shutdown mode that reduces supply current to < 0.5μA and comes in a 6-pin SC70 package. The MAX4482 is a dual amplifier and comes in the space-sav- ing 8-pin SOT23 or μMAX® package. The MAX4483 is a quad amplifier and comes in a 14-pin TSSOP package. All devices are specified for operation across the -40°C to
+125°C automotive temperature range.
Single-Supply Zero-Crossing Detectors
Instruments and Terminals
Portable Communications
Electronic Ignition Modules
Infrared Receivers
Sensor Signal Detection
PART | NO. OF AMPLIFIERS PER PACKAGE | SHUTDOWN MODE |
MAX4480 | 1 | No |
MAX4481 | 1 | Yes |
MAX4482 | 2 | No |
MAX4483 | 4 | No |
μMAX is a registered trademark of Maxim Integrated Products, Inc.
19-1809; Rev 4; 5/14
Single +2.5V to +5.5V Supply Voltage Range
50μA Quiescent Current per Amplifier
0.5μA (max) Shutdown Mode (MAX4481)
Available in Space-Saving Packages
5-Pin SC70 (MAX4480)
6-Pin SC70 (MAX4481)
8-Pin SOT23 (MAX4482)
105dB AVOL with 5kΩ Load
0.005% THD with 100kΩ Load
Rail-to-Rail Output Voltage Swing
3.0mA of Sink and Source Load Current
Unity-Gain Stable up to CLOAD = 400pF
PART | TEMP RANGE | PIN- PACKAGE | TOP MARK |
MAX4480AXK+T | -40°C to +125°C | 5 SC70 | ABU |
MAX4480AUK+T | -40°C to +125°C | 5 SOT23 | ADPJ |
MAX4481AXT+T | -40°C to +125°C | 6 SC70 | AAN |
MAX4481AUT+T | -40°C to +125°C | 6 SOT23 | AAOS |
MAX4481MXT/PR3+ | -55°C to +110°C | 6 SC70 | AEE |
MAX4482AKA+T | -40°C to +125°C | 8 SOT23 | AAEJ |
MAX4482ASA+ | -40°C to +125°C | 8 SO | — |
MAX4482AUA+ | -40°C to +125°C | 8 FMAX | — |
MAX4483ASD+ | -40°C to +125°C | 14 SO | — |
MAX4483AUD+ | -40°C to +125°C | 14 TSSOP | — |
+Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel.
MAX4480
MAX4481
IN+ 1
+
5 VDD
IN+ 1
+
6 VDD
VSS 2
VSS 2
5 SHDN
IN- 3
4 OUT IN- 3
4 OUT
SC70-5/SOT23-5
SC70-6/SOT23-6
Pin Configurations continued at end of data sheet.
Power-Supply Voltage (VDD to VSS).........................-0.3V to +6V
All Other Pins...................................(VSS - 0.3V) to (VDD + 0.3V)
Output Short-Circuit Duration
(OUT shorted to VSS or VDD).................................Continuous Continuous Power Dissipation (TA = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C)............. 247mW
6-Pin SC70 (derate 3.1mW/°C above +70°C)..............245mW
5-Pin SOT23 (derate 3.1mW/°C above +70°C)...........247mW
6-Pin SOT23 (derate 8.7mW/°C above +70°C)...........696mW
8-Pin SOT23 (derate 5.1mW/°C above +70°C)...........408mW
8-Pin μMAX (derate 4.5mW/°C above +70°C)............362mW
8-Pin SO (derate 5.9mW/°C above +70°C)................471mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C).........727mW
14-Pin SO (derate 8.33mW/°C above +70°C).............667mW Operating Temperature Range .........................-40°C to +125°C Military Operating Temperature Range...............-55°C to +110°C Junction Temperature.........................................................150°C
Storage Temperature Range...............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+3000°C
Soldering Temperature (reflow)........................................+240°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL ≥ 1MΩ connected to VDD/2, SHDN = VDD (MAX4481 only), TA = +25°C, unless
otherwise noted.)
PARAMETER | SYMBOL | CONDITIONS | MIN | TYP | MAX | UNITS | |
Supply Voltage Range | VDD | Inferred from PSRR test | 2.5 | 5.5 | V | ||
Supply Current per Amplifier | IDD | VDD = 2.5V | 45 | μA | |||
VDD = 5.0V | 50 | 100 | |||||
Supply Current in Shutdown | ISHDN | SHDN = VSS (MAX4481 only) | 0.05 | 0.5 | μA | ||
Input Offset Voltage | VOS | ±1 | ±5.5 | mV | |||
Input Bias Current | IB | (Note 1) | ±0.1 | ±100 | pA | ||
Input Offset Current | IOS | (Note 1) | ±0.1 | ±100 | pA | ||
Input Resistance | RIN | Differential or common mode | 1000 | MΩ | |||
Input Common-Mode Voltage Range | VCM | Inferred from CMRR test | VSS | VDD - 1.3 | V | ||
Common-Mode Rejection Ratio | CMRR | VSS ≤ VCM ≤ VDD - 1.3V | 71 | 86 | dB | ||
Power-Supply Rejection Ratio | PSRR | 2.5V ≤ VDD ≤ 5.5V | 82 | 92 | dB | ||
Large-Signal Voltage Gain | AVOL | VSS + 0.02V ≤ VOUT ≤ VDD - 0.03V | RL = 100kΩ | 110 | dB | ||
VSS + 0.10V ≤ VOUT ≤ VDD - 0.20V | RL = 5kΩ | 94 | 105 | ||||
Output Voltage High | VOH | Specified as VDD - VOUT | RL = 100kΩ | 4 | mV | ||
RL = 5kΩ | 80 | 150 | |||||
Output Voltage Low | VOL | Specified as VOUT - VSS | RL = 100kΩ | 1 | mV | ||
RL = 5kΩ | 8 | 30 | |||||
Output Short-Circuit Current | ISC | Sourcing | 3 | mA | |||
Sinking | 17 | ||||||
Shutdown Mode Output Leakage | IOUTSHDN | Device in shutdown mode, SHDN = VSS, VSS < VOUT < VCC (MAX4481 only) | ±0.01 | ±0.1 | μA | ||
SHDN Logic Low | VIL | MAX4481 only | 0.3 x VDD | V | |||
SHDN Logic High | VIH | MAX4481 only | 0.7 x VDD | V | |||
SHDN Input Current | IIL, IIH | SHDN = VDD or VSS (MAX4481 only) | ±0.001 | ±1 | ±500 | nA | |
Gain-Bandwidth Product | GBW | 140 | kHz |
(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL ≥ 1MΩ connected to VDD/2, SHDN = VDD (MAX4481 only), TA = +25°C, unless
otherwise noted.)
PARAMETER | SYMBOL | CONDITIONS | MIN TYP MAX | UNITS | |
Phase Margin | φM | 70 | degrees | ||
Gain Margin | 30 | dB | |||
Slew Rate | SR | 80 | V/ms | ||
Input Voltage Noise Density | en | f = 10kHz | 100 | nV/√Hz | |
Input Current Noise Density | in | f = 10kHz | 1 | nV/√Hz | |
Capacitive-Load Stability | CLOAD | AV = +1V/V | 400 | pF | |
Shutdown Delay Time | tSHDN | MAX4481 only | 0.4 | μs | |
Enable Delay Time | tEN | MAX4481 only | 12 | μs | |
Power-On Time | tON | 15 | μs | ||
Input Capacitance | CIN | 2.0 | pF | ||
Total Harmonic Distortion | THD | f = 1kHz, VOUT = 2VP-P, AV = +1V/V | RL = 100kΩ | 0.005 | % |
Settling Time to 0.1% | tS | VOUT = 2V step | 50 | μs |
(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL ≥ 1MΩ connected to VDD/2, SHDN = VDD (MAX4481 only), TA = -40°C to +125°C,
unless otherwise noted.)
PARAMETER | SYMBOL | CONDITIONS | MIN TYP MAX | UNITS | |
Supply Voltage Range | VDD | Inferred from PSRR test | 2.5 5.5 | V | |
Supply Current per Amplifier | IDD | 120 | μA | ||
Supply Current in Shutdown | ISHDN | SHDN = VSS (MAX4481 only) | 1.0 | μA | |
Input Offset Voltage | VOS | 9 | mV | ||
Input Offset Voltage Drift | TCVOS | ±3 | μV/°C | ||
Input Bias Current | IB | (Note 1) | ±100 | pA | |
Input Offset Current | IOS | (Note 1) | ±100 | pA | |
Input Common-Mode Voltage Range | VCM | Inferred from CMRR test | VSS VDD - 1.4 | V | |
Common-Mode Rejection Ratio | CMRR | VSS ≤ VCM ≤ VDD - 1.4V | 67 | dB | |
Power-Supply Rejection Ratio | PSRR | 2.5V ≤ VDD ≤ 5.5V | 77 | dB | |
Shutdown Mode Output Leakage | IOUTSHDN | Device in shutdown mode, SHDN = VSS, VSS < VOUT < VCC (MAX4481 only) | -40°C to +85°C | ±0.5 | μA |
+85°C to +125°C | ±2.5 | ||||
SHDN Logic Low | VIL | MAX4481 only | 0.3 x VDD | V | |
SHDN Logic High | VIH | MAX4481 only | 0.7 x VDD | V | |
SHDN Input Current | IIL, IIH | SHDN = VDD or VSS (MAX4481 only) | 1 | µA | |
Large-Signal Voltage Gain | AVOL | VSS + 0.1V ≤ VOUT ≤ VDD - 0.20V, RL = 5kΩ | 84 | dB | |
Output Voltage High | VOH | Specified as VDD - VOUT, RL = 5kΩ | 200 | mV | |
Output Voltage Low | VOL | Specified as VOUT - VSS, RL = 5kΩ | 50 | mV |
Note 1: Guaranteed by design.
Note 2: Specifications are 100% tested at TA = +25°C (exceptions noted). All temperature limits are guaranteed by design.
(VDD = +5V, VSS = 0V, VCM = VDD/2, VSHDN = 5V, RL ≥ 1MΩ connected to VDD/2, TA = +25°C, unless otherwise noted.)
80
60
GAIN (dB)/PHASE (degrees)
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
GAIN AND PHASE
vs. FREQUENCY (NO LOAD)
AVCL = +1000V/V
80
MAX4480 toc01
60
GAIN (dB)/PHASE (degrees)
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
GAIN AND PHASE
vs. FREQUENCY (CL = 400pF)
AVCL = +1000V/V
10
MAX4480 toc02
-10
PSRR (dB)
-30
-50
-70
-90
-110
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
MAX4480 toc03
1 10
100
1k 10k
100k 1M
1 10
100 1k
10k
100k 1M
10 100
1k 10k 100k 1M
1000
OUTPUT IMPEDANCE (Ω)
100
10
1
0.1
0.01
FREQUENCY (Hz)
OUTPUT IMPEDANCE vs. FREQUENCY
FREQUENCY (Hz)
SUPPLY CURRENT vs. TEMPERATURE
MAX4480 toc4
60
58
SUPPLY CURRENT (µA)
56
54
52
50
48
46
44
42
40
100k
MAX4480 toc05
SUPPLY CURRENT (pA)
10k
1k
100
10
1
FREQUENCY (Hz)
MAX4481 SHUTDOWN SUPPLY CURRENT
MAX4480 toc06
vs. TEMPERATURE
VSHDN = VSS | ||||||||
1 10 100 1k 10k 100k 1M
-40
-20 0
20 40
60 80
100 120
-40
-20 0
20 40 60
80 100 120
FREQUENCY (Hz)
MAX4481
OUTPUT LEAKAGE CURRENT vs. TEMPERATURE
VSHDN = VSS VOUT = VDD/2 | ||||||||
1000k
100k
ILEAK (pA)
10k
1k
100
10
1500
MAX4480 toc07
1000
VOS (µV)
500
0
-500
-1000
-1500
TEMPERATURE (°C)
INPUT OFFSET VOLTAGE vs. TEMPERATURE
MAX4480 toc08
100
90
VDD - VOUT (mV)
80
70
60
50
40
TEMPERATURE (°C)
MAX4480 toc09
OUTPUT VOLTAGE SWING HIGH vs. TEMPERATURE
RL = 5kΩ to VDD/2 | ||||||||
-40
-20 0
20 40 60
80 100 120
-40
-20 0
20 40 60
80 100 120
-40
-20 0
20 40 60
80 100 120
TEMPERATURE (∞C)
TEMPERATURE (°C)
TEMPERATURE (°C)
(VDD = +5V, VSS = 0V, VCM = VDD/2, VSHDN = 5V, RL ≥ 1MΩ connected to VDD/2, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE SWING LOW vs. TEMPERATURE
RL = 5kΩ to VDD/2 | ||||||||
11
10
VOUT - VSS (mV)
9
8
7
6
5
4
-80
MAX4480 toc10
-82
CMRR (dB)
-84
-86
-88
-90
COMMON-MODE REJECTION RATIO vs. TEMPERATURE
MAX4480 toc11
130
125
120
115
GAIN (dB)
110
105
100
95
90
85
80
LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
RL = 5kΩ to VDD/2 | |||||||
MAX4480 toc12
-40 -20 0 20 40 60 80 100 120
-40
-20 0 20 40 60 80 100 120
0.5
1.0
1.5 2.0 2.5 3.0 3.5
4.0 4.5
110
105
GAIN (dB)
100
95
90
TEMPERATURE (°C)
LARGE-SIGNAL GAIN vs. TEMPERATURE
MAX4480 toc13
RL = 5kΩ to VDD/2 | ||||||||
2.0
1.9
1.8
1.7
VDD (MIN)
1.6
1.5
1.4
1.3
1.2
1.1
1.0
TEMPERATURE (°C)
MINIMUM OPERATING VOLTAGE vs. TEMPERATURE
MAX4480 toc14
100
10
THD + N (%)
1
0.1
0.01
0.001
VOUT (V)
MAX4480 toc15
TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY
RL = 5kΩ VOUT = 2VP-P AV = +1
BW = 30kHz
-40
-20 0
20 40 60
80 100 120
-40
-20 0
20 40 60
80 100 120
10 100 1k
10k 100k
100
10
THD + N (%)
1
0.1
TEMPERATURE (°C)
TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY
RL = 100kΩ VOUT = 2VP-P AV = +1
BW = 30kHz
100
MAX4480 toc16
10
THD + N (%)
1
0.1
TEMPERATURE (°C)
TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE
RL = 5kΩ
f = 1kHz
BW = 22kHz
100
MAX4480 toc17
10
THD + N (%)
1
0.1
FREQUENCY (Hz)
MAX4480 toc18
TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE
RL = 100kΩ
f = 1kHz
BW = 22kHz
0.01
0.01
0.01
0.001
10
100
1k FREQUENCY (Hz)
10k 100k
0.001
0
1 2
VIN (Vp-p)
0.001
3 0
0.5
1.0
1.5 2.0 2.5 3.0
VIN (Vp-p)
MAX4480 toc19
(VDD = +5V, VSS = 0V, VCM = VDD/2, VSHDN = 5V, RL ≥ 1MΩ connected to VDD/2, TA = +25°C, unless otherwise noted.)
CAPACITIVE-LOAD STABILITY
20
AV = +1V/V
TA = +25°C
RL // CL
CAPACITIVE LOAD (nF)
15
UNSTABLE REGION
10
5 STABLE
REGION
NONINVERTING SMALL-SIGNAL TRANSIENT RESPONSE
AV = 1V/V RL = 5kΩ
MAX4480 roc20
IN
50mV/div
OUT
0
1k 10k 100k RESISTIVE LOAD (Ω)
NONINVERTING LARGE-SIGNAL TRANSIENT RESPONSE
MAX4480 roc21
IN
1V/div
20µs/div
PERCENT OVERSHOOT vs. CAPACITIVE LOAD
MAX4480 toc22
25
POSITIVE
OVERSHOOT (%)
20 OVERSHOOT
15
10
AV = 1V/V RL = 5kΩ
100µs/div
OUT
5
0
0 100
200 300
MAX4480 toc23
CLOAD (pF)
NEGATIVE OVERSHOOT
400 500 600
CHANNEL-TO-CHANNEL ISOLATION (dB)
120
110
100
90
80
70
60
50
40
30
20
CHANNEL-TO-CHANNEL ISOLATION vs. FREQUENCY
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4480 toc24
60
VOUT = VDD/2
SUPPLY CURRENT (mA)
50
40
30
20
10
0
10 100 1k
10k 100k 1M
0 1 2 3
4 5 6
FREQUENCY (kHz) SUPPLY VOLTAGE (V)
PIN | NAME | FUNCTION | |||
MAX4480 | MAX4481 | MAX4482 | MAX4483 | ||
1 | 1 | — | — | IN+ | Noninverting Amplifier Input |
— | — | 3 | 3 | INA+ | Noninverting Amplifier Input A |
— | — | 5 | 5 | INB+ | Noninverting Amplifier Input B |
— | — | — | 10 | INC+ | Noninverting Amplifier Input C |
— | — | — | 12 | IND+ | Noninverting Amplifier Input D |
2 | 2 | 4 | 11 | VSS | Negative Supply. Connect to ground for single-supply operation. Use a 0.01μF bypass capacitor to GND. |
3 | 3 | — | — | IN- | Inverting Amplifier Input |
— | — | 2 | 2 | INA- | Inverting Amplifier Input A |
— | — | 6 | 6 | INB- | Inverting Amplifier Input B |
— | — | — | 9 | INC- | Inverting Amplifier Input C |
— | — | — | 13 | IND- | Inverting Amplifier Input D |
4 | 4 | — | — | OUT | Amplifier Output |
— | — | 1 | 1 | OUTA | Amplifier Output A |
— | — | 7 | 7 | OUTB | Amplifier Output B |
— | — | — | 8 | OUTC | Amplifier Output C |
— | — | — | 14 | OUTD | Amplifier Output D |
5 | 6 | 8 | 4 | VDD | Positive Supply. Use a 0.01μF bypass capacitor to GND. |
— | 5 | — | — | SHDN | Active-Low Shutdown Input. Connect to VDD for normal operation. Do not leave floating. |
1V/div
100µs/div
The MAX4480–MAX4483 can drive a 5kΩ load and still typically swing within 80mV of the supply rails. Figure 1 shows the MAX4480 output voltage swing configured with AV = +10V/V.
Driving a capacitive load can cause instability in many op amps, especially those with low quiescent current. The MAX4480–MAX4483 are unity-gain stable for a range of capacitive loads to above 400pF. Figure 2 shows the MAX4480 response with an excessive capacitive load. Adding a series resistor between the output and the load capacitor (Figure 3) improves the circuit’s response by
isolating the load capacitance from the op amp’s output. Figure 1. Rail-to-Rail Output Operation
50mV/div
20µs/div
RISO
MAX4480 MAX4481 MAX4482 MAX4483
CL
2V/div
400µs/div
CL = 1nF
Figure 2. Small-Signal Transient Response with Excessive Capacitive Load
RL = 10MΩ TO VSS, CL = 25pF
Figure 4. Shutdown Waveform
Figure 3. Capacitive-Load-Driving Circuit
VDD
2V/div
OUT
1V/div
4µs/div
Figure 5. Power-Up/Down Waveform
The MAX4481 features a low-power shutdown mode. When SHDN goes low, the supply current drops to 0.05μA (typ) and the output enters a high-impedance state. Pull SHDN high to enable the amplifier. Do not leave SHDN floating. Figure 4 shows the shutdown waveform.
The MAX4480–MAX4483 outputs typically settle within 50μs after power-up. Figure 5 shows the output voltage on power-up and power-down.
The MAX4480–MAX4483 operate from a single +2.5V to +5.5V power supply. Bypass the power supply with a 0.1μF capacitor to ground.
Good layout techniques optimize performance by decreasing the amount of stray capacitance at the op amp’s inputs and outputs. To decrease stray capacitance, minimize trace lengths by placing external components close to the op amp’s pins.
PROCESS: BiCMOS
8 VDD
MAX4483
OUTA 1
+
14 OUTD
OUTA 1
+
MAX4482
INA- 2
13 IND-
INA+ 3
12 IND+
INA- 2
7 OUTB
VDD 4
11 VSS
INA+ 3
6 INB-
INB+ 5
10 INC+
VSS 4
5 INB+
SOT23/SO/µMAX
INB- 6
9 INC-
OUTB 7
8 OUTC
TSSOP/SO
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.
PACKAGE TYPE | PACKAGE CODE | OUTLINE NO. | LAND PATTERN NO. |
5 SC70 | X5+1 | ||
5 SOT23 | U5+1 | ||
6 SC70 | X6SN+1 | ||
6 SOT23 | U6SN+1 | ||
8 SOT23 | K8+5 | ||
8 SO | S8+2 | ||
8 µMAX | U8+1 | ||
14 TSSOP | U14+1 | 90-0113 | |
14 SO | S14+1 |
REVISION NUMBER | REVISION DATE | DESCRIPTION | PAGES CHANGED |
0 | 10/00 | Initial release | — |
1 | 1/01 | Released MAX4481, revised Electrical Characteristics and Figures 2 and 4. | 1, 2, 3, 8 |
2 | 10/12 | Added MAX4481MXT/PR2-W and lead-free notation to Ordering Information. Revised Absolute Maximum Ratings with military temp range. | 1, 2 |
3 | 4/13 | Removed –W from MAX4481MXT/PR2 in Ordering Information and revised Absolute Maximum Ratings and updated to MAX4481MXT/PR3+. | 1, 2 |
4 | 5/14 | Removed automotive reference from General Description | 1 |
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
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