TS27L4


Very low power precision CMOS quad operational amplifiers


Features


SO-14

(Plastic micropackage)

Description

TSSOP14

(Thin shrink small outline package)


Pin connections (top view)

The TS27L4 series are low-cost, low-power quad operational amplifiers designed to operate with single or dual supplies. These operational amplifiers use the ST silicon gate CMOS process allowing an excellent consumption-speed ratio.

These series are ideally suited for low consumption applications.

Three power consumptions are available enabling the best consumption-speed ratio:

-

+

-

+

Inverting Input 1 2 13 Inverting Input 4

14 Output 4

Output 1 1

ICC = 10 µA/amp: TS27L4 (very low power), ICC = 150 µA/amp: TS27M4 (low power), ICC = 1 mA/amp: TS274 (standard).

8 Output 3

Output 2 7

9 Inverting Input 3

+

-

+

-

Inverting Input 2 6

12 Non-inverting Input 4

11 VCC -

10 Non-inverting Input 3

Non-inverting Input 1 3

VCC + 4

Non-inverting Input 2 5

These CMOS amplifiers offer very high input impedance and extremely low input currents. The major advantage versus JFET devices is the very low input current drift with temperature (see Figure 4).


March 2009 Rev 3 1/15

www.st.com


  1. Circuit schematics


    Figure 1. Internal block diagram


    VCC


    Current source

    x I

    Input differential

    Second stage

    Output stage

    Output


    VCC


    E

    E


    Figure 2. Schematic diagram (for 1/4 TS27L4)


    VCC



    T24

    T25

    T26

    T27

    T5

    T


    T8


    R2

    T28


    T1

    T2

    T17

    Input Input


    C1



    T7


    T19

    23

    T3

    T4


    T20

    T22

    T21 T29


    VCC



    T14

    T9 T13

    T16

    T

    Output

    R1

    T18

    T12

    T11

    T15

    6

    T10

    3/15


  2. Absolute maximum ratings and operating conditions


    Table 1. Absolute maximum ratings

    Symbol

    Parameter

    Value

    Unit

    VCC+

    Supply voltage (1)

    18

    V

    Vid

    Differential input voltage (2)

    ±18

    V

    Vin

    Input voltage (3)

    -0.3 to 18

    V

    Io

    Output current for VCC+ 15V

    ±30

    mA

    Iin

    Input current

    ±5

    mA

    Tstg

    Storage temperature range

    -65 to +150

    °C


    Rthja

    Thermal resistance junction to ambient(4) SO-14

    TSSOP14

    DIP14


    105

    100

    80


    °C/W


    Rthjc

    Thermal resistance junction to case(4) SO-14

    TSSOP14

    DIP14


    31

    32

    33


    °C/W


    ESD

    HBM: human body model(5)

    1

    kV

    MM: machine model(6)

    100

    V

    CDM: charged device model(7)

    1.5

    kV

    1. All values, except differential voltage are with respect to network ground terminal.

    2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.

    3. The magnitude of the input and the output voltages must never exceed the magnitude of the positive supply voltage.

    4. Short-circuits can cause excessive heating and destructive dissipation. Values are typical.

    5. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a

      1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.

    6. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating.

    7. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins.


      Table 2. Operating conditions

      Symbol

      Parameter

      TS27L4C

      TS27L4I

      Unit

      +

      VCC

      Supply voltage

      3 to 16

      V

      Vicm

      Common mode input voltage range

      0 to VCC+ - 1.5

      V

      Toper

      Operating free-air temperature range

      0 to +70

      -40 to +125

      °C


      4/15


      amb

  3. Electrical characteristics


    CC

    Table 3. VCC+ = +10 V, V

    - = 0 V, T


    = +25° C (unless otherwise specified)


    Symbol


    Parameter

    TS27L4C/AC

    TS27L4I/AI


    Unit

    Min.

    Typ.

    Max.

    Min.

    Typ.

    Max.


    Vio

    Input offset voltage Vo = 1.4V, Vic = 0V

    TS27L4

    TS27L4A

    Tmin Tamb Tmax TS27L4 TS27L4A



    1.1

    0.9


    10

    5


    12

    6.5



    1.1

    0.9


    10

    5


    12

    6.5


    mV

    DVio

    Input offset voltage drift


    2



    2


    µV/°C


    Iio

    Input offset current (1)

    Vic = 5V, VO = 5V

    Tmin Tamb Tmax



    1


    100



    1


    200


    pA


    Iib

    Input bias current (1)

    Vic = 5V, VO = 5V

    Tmin Tamb Tmax



    1


    150



    1


    300


    pA


    VOH

    High level output voltage Vid = 100mV, RL = 1MΩ

    Tmin Tamb Tmax


    8.8

    8.7


    9



    8.8

    8.6


    9



    V

    VOL

    Low level output voltage Vid = -100mV



    50



    50

    mV


    Avd

    Large signal voltage gain

    ViC = 5V, RL = 1MΩ Vo = 1V to 6V

    Tmin Tamb Tmax


    60

    45


    100



    60

    40


    100



    V/mV

    GBP

    Gain bandwidth product

    Av = 40dB, RL = 1MΩ CL = 100pF, fin = 100kHz


    0.1



    0.1


    MHz

    CMR

    Common mode rejection ratio ViC = 1V to 7.4V, Vo = 1.4V

    65

    80


    65

    80


    dB

    SVR

    Supply voltage rejection ratio V + = 5V to 10V, V = 1.4V

    CC o

    60

    80


    60

    80


    dB


    ICC

    Supply current (per amplifier) Av = 1, no load, Vo = 5V

    Tmin Tamb Tmax



    10


    15

    17



    10


    15

    18


    µA

    Io

    Output short circuit current Vo = 0V, Vid = 100mV


    60



    60


    mA

    Isink

    Output sink current

    Vo = VCC, Vid = -100mV


    45



    45


    mA

    SR

    Slew rate at unity gain

    RL = 1MΩ, CL = 100pF, Vi = 3 to 7V


    0.04



    0.04


    V/µs


    5/15


    CC

    amb

    Table 3. VCC+ = +10 V, V

    - = 0 V, T

    = +25° C (unless otherwise specified) (continued)


    Symbol


    Parameter

    TS27L4C/AC

    TS27L4I/AI


    Unit

    Min.

    Typ.

    Max.

    Min.

    Typ.

    Max.

    m

    Phase margin at unity gain

    Av = 40dB, RL = 1MΩ, CL = 100pF


    45



    45


    Degrees

    Kov

    Overshoot factor


    30



    30


    %

    en

    Equivalent input noise voltage f = 1kHz, Rs = 100Ω


    68



    68


    ---n--V-----

    Hz

    Vo1/Vo2

    Channel separation


    120



    120


    dB

    1. Maximum values include unavoidable inaccuracies of the industrial tests.


    6/15


  4. Typical characteristics


    SUPPLY CURRENT, ICC (µ A)

    Figure 3. Supply current (each amplifier) versus supply voltage


    2.0


    1.5


    1.0


    0.5

    Tamb = 25°C





    AV = 1





    V = V / 2

    O CC















































    0

    4

    8

    12

    16


    SUPPLY VOLTAGE, VCC (V)


    OUTPUT VOLTAGE, V OH (V)

    Figure 5. High level output voltage versus high level output current

    Figure 4. Input bias current versus free air temperature



    TEMPERATURE, T amb (˚C)


    125

    100

    75

    50

    25

    1

    10

    VCC = 10V

    Vic = 5V

    100

    INPUT BIAS CURRENT, I IB (pA)

    OUTPUT VOLTAGE, V OH (V)

    Figure 6. High level output voltage versus high level output current


    5



    20

    Tamb = 25˚C

    16 V id = 100mV

    VCC = 16V

    12


    8 VCC = 10V


    4


    0

    -50 -40 -30 -20 -10

    OUTPUT CURRENT, I OH (mA)



    4

    T amb = 25˚C Vid = 100mV



    3

    VCC = 5V



    2





    1

    VCC = 3V



    0-10


    -8 -6 -4 -2


    0


    0


    OUTPUT CURRENT, I OH (mA)




    OUTPUT VOLTAGE, VOL

    (V)

    OUTPUT VOLTAGE, VOL

    (V)

    Figure 7. Low level output voltage versus low level output current

    Figure 8. Low level output voltage versus low level output current



    1.0


    3


    VCC = 10V


    VCC = 16V


    Tamb = 25°C Vi = 0.5V

    V = -100mV

    id


    4 8 12 16

    OUTPUT CURRENT, I OL (mA)


    V CC = 3V

    0.8




    0.6 V CC = 5V


    2


    0.4



    1


    Tamb = 25°C




    0.2 Vic = 0.5V




    V id = -100mV




    0 1 2

    3

    0

    20

    OUTPUT CURRENT, IOL (mA)






    7/15


    120

    T amb = 25°C

    100 R L = 1 M Ω

    C L = 100p F

    80 A V = 1


    60


    40

    135

    V + = 10 V

    Tamb = 25°C

    Phase

    Margin 90

    20

    45

    PH AS E

    30

    GA IN (d B )

    P H A S E (D egrees)

    GA IN B A N D W . P R OD ., GB P (M H z)

    Figure 9. Open loop frequency response and phase shift

    Figure 10. Gain bandwidth product versus supply voltage


    50


    40

    GA IN

    0


    F R E Q UE NC Y , f (Hz)

    SU PP LY V O LT AG E, VCC (V)


    T amb = 25 °C R L = 1 MΩ A V = 1

    V CC= 10 V

    80


    70

    40

    A V = 1

    C = 100p F L

    50

    T amb = 25 ° C R L = 1 MΩ

    60

    16

    12

    8

    4

    0

    6 7

    10 10

    10 3 10 4 10 5

    180

    Gain Bandwidth Product

    -10

    10 2

    L = 1 M

    C L = 100pF A VCL = 100

    0

    Ω

    CC

    R

    10

    PH ASE M A R G IN , m (D egrees)

    PH AS E M AR G IN , m (D egrees)

    Figure 11. Phase margin versus supply voltage

    Figure 12. Phase margin versus capacitive load


    SU PP LY V O LT AG E, V CC (V)

    C APA C IT A N C E, C L (p F )


    20 40 60 80 100

    0

    60


    50


    40

    16

    12

    8

    4

    0

    30

    Figure 13. Slew rate versus supply voltage Figure 14. Input voltage noise versus

    100

    VCC = 10V

    Tam b = 25˚C

    RS = 100Ω

    200

    0.03

    SR

    0.04

    SR

    T amb = 25 °C R L = 1 M Ω

    C L = 100 pF

    SLE W R A T ES, SR (V / s)

    EQUIVALENT INPUT NOISE VOLTAGE (nV/VHz)

    frequency


    0.05

    300



    0.02

    0


    SU PPLY V O LT A G E , VCC (V )

    FREQUENCY (Hz)



    1000

    100

    10

    1

    8 10 12 14 16

    6

    4

    8/15


  5. Package information


In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com.

ECOPACK® is an ST trademark.



9/15


    1. DIP14 package information

      Figure 15. DIP14 package mechanical drawing


      Table 4. DIP14 package mechanical data

      Dimensions


      Ref.

      Millimeters

      Inches

      Min.

      Typ.

      Max.

      Min.

      Typ.

      Max.

      A



      5.33



      0.21

      A1

      0.38



      0.015



      A2

      2.92

      3.30

      4.95

      0.11

      0.13

      0.19

      b

      0.36

      0.46

      0.56

      0.014

      0.018

      0.022

      b2

      1.14

      1.52

      1.78

      0.04

      0.06

      0.07

      c

      0.20

      0.25

      0.36

      0.007

      0.009

      0.01

      D

      18.67

      19.05

      19.69

      0.73

      0.75

      0.77

      E

      7.62

      7.87

      8.26

      0.30

      0.31

      0.32

      E1

      6.10

      6.35

      7.11

      0.24

      0.25

      0.28

      e


      2.54



      0.10


      e1


      15.24



      0.60


      eA


      7.62



      0.30


      eB



      10.92



      0.43

      L

      2.92

      3.30

      3.81

      0.11

      0.13

      0.15


      10/15


    2. SO-14 package information

      Figure 16. SO-14 package mechanical drawing


      Table 5. SO-14 package mechanical data

      Dimensions


      Ref.

      Millimeters

      Inches

      Min.

      Typ.

      Max.

      Min.

      Typ.

      Max.

      A

      1.35


      1.75

      0.05


      0.068

      A1

      0.10


      0.25

      0.004


      0.009

      A2

      1.10


      1.65

      0.04


      0.06

      B

      0.33


      0.51

      0.01


      0.02

      C

      0.19


      0.25

      0.007


      0.009

      D

      8.55


      8.75

      0.33


      0.34

      E

      3.80


      4.0

      0.15


      0.15

      e


      1.27



      0.05


      H

      5.80


      6.20

      0.22


      0.24

      h

      0.25


      0.50

      0.009


      0.02

      L

      0.40


      1.27

      0.015


      0.05

      k

      8° (max.)

      ddd



      0.10



      0.004


      11/15


    3. TSSOP14 package information

      Figure 17. TSSOP14 package mechanical drawing


      Table 6. TSSOP14 package mechanical data


      Ref.

      Dimensions

      Millimeters

      Inches

      Min.

      Typ.

      Max.

      Min.

      Typ.

      Max.

      A



      1.20



      0.047

      A1

      0.05


      0.15

      0.002

      0.004

      0.006

      A2

      0.80

      1.00

      1.05

      0.031

      0.039

      0.041

      b

      0.19


      0.30

      0.007


      0.012

      c

      0.09


      0.20

      0.004


      0.0089

      D

      4.90

      5.00

      5.10

      0.193

      0.197

      0.201

      E

      6.20

      6.40

      6.60

      0.244

      0.252

      0.260

      E1

      4.30

      4.40

      4.50

      0.169

      0.173

      0.176

      e


      0.65



      0.0256


      L

      0.45

      0.60

      0.75

      0.018

      0.024

      0.030

      L1


      1.00



      0.039


      k



      aaa



      0.10



      0.004


      12/15


  1. Ordering information


    Table 7. Order codes


    Order code

    Temperature range


    Package


    Packing


    Marking

    TS27L4CD TS27L4CDT


    0°C, +70°C


    SO-14


    Tube or Tape & reel

    27L4C

    TS27L4ACD TS27L4ACDT

    27L4AC

    TS27L4CN TS27L4ACN


    DIP14


    Tube

    TS27L4CN

    TS27L4ACN

    TS27L4CPT TS27L4ACPT


    TSSOP14


    Tape & reel

    27L4C

    27L4AC

    TS27L4ID TS27L4IDT


    -40°C, +125°C


    SO-14


    Tube or Tape & reel

    27L4I

    TS27L4AID TS27L4AIDT

    27L4AI

    TS27L4IN TS27L4AIN


    DIP14


    Tube

    TS27L4IN

    TS27L4AIN

    TS27L4IPT TS27L4AIPT


    TSSOP14


    Tape & reel

    27L4I

    27L4AI


    13/15


  2. Revision history


Table 8. Document revision history

Date

Revision

Changes

11-Nov-2001

1

Initial release.


08-Sep-2008


2

Removed TS27L4B version of device.

Added Rthja, Rthjc, and ESD parameters in Table 1: Absolute maximum ratings.

Expanded Table 7: Order codes. Updated document format.


02-Mar-2009


3

Removed TS27L4*M* from Table 7: Order codes. Updated package mechanical drawings and data in Chapter 5: Package information.


14/15



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TS27L4ID TS27L4CD TS27L4IN TS27L4CN TS27L4ACD TS27L4AID TS27L4ACN TS27L4AIN TS27L4AIDT TS27L4CDT TS27L4ACPT TS27L4AIPT TS27L4IPT TS27L4CPT TS27L4ACDT TS27L4IDT TS27L4AMD TS27L4AMDT