IC OPAMP INSTR 150KHZ SGL 16DIP

 

INA125PA

Manufacturer Part NumberINA125PA
DescriptionIC OPAMP INSTR 150KHZ SGL 16DIP
ManufacturerTexas Instruments
INA125PA datasheets

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Specifications of INA125PA

Amplifier TypeInstrumentationNumber Of Circuits1
Slew Rate0.2 V/µs-3db Bandwidth150kHz
Current - Input Bias10nAVoltage - Input Offset50µV
Current - Supply460µACurrent - Output / Channel12mA
Voltage - Supply, Single/dual (±)2.7 V ~ 36 V, ±1.35 V ~ 18 VOperating Temperature-40°C ~ 85°C
Mounting TypeThrough HolePackage / Case16-DIP (0.300", 7.62mm)
Number Of Channels1Input Offset Voltage500 uV
Input Bias Current (max)50 nAAvailable Set Gain4 V/V
Maximum Input Resistance100000 MOhms (Typ) @ +/- 15VCommon Mode Rejection Ratio (min)90 dB
Operating Supply Voltage36 VSupply Current0.325 mA
Maximum Operating Temperature+ 125 CMinimum Operating Temperature- 55 C
Dual Supply Voltage+/- 15 VMounting StyleThrough Hole
No. Of Amplifiers1Bandwidth150kHz
Amplifier OutputSingle EndedCmrr114dB
Supply Voltage Range± 1.35V To ± 18VRohs CompliantYes
Lead Free Status / RoHS StatusLead free / RoHS CompliantOutput Type-
Gain Bandwidth Product-  
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INSTRUMENTATION AMPLIFIER
With Precision Voltage Reference
FEATURES
LOW QUIESCENT CURRENT: 460 A
PRECISION VOLTAGE REFERENCE:
1.24V, 2.5V, 5V or 10V
SLEEP MODE
LOW OFFSET VOLTAGE: 250 V max
LOW OFFSET DRIFT: 2 V/ C max
LOW INPUT BIAS CURRENT: 20nA max
HIGH CMR: 100dB min
LOW NOISE: 38nV/ Hz at f = 1kHz
INPUT PROTECTION TO 40V
WIDE SUPPLY RANGE
Single Supply: 2.7V to 36V
Dual Supply: 1.35V to 18V
16-PIN DIP AND SO-16 SOIC PACKAGES
DESCRIPTION
The INA125 is a low power, high accuracy instrumen-
tation amplifier with a precision voltage reference. It
provides complete bridge excitation and precision dif-
ferential-input amplification on a single integrated
circuit.
A single external resistor sets any gain from 4 to
10,000. The INA125 is laser-trimmed for low offset
voltage (250 V), low offset drift (2 V/ C), and high
common-mode rejection (100dB at G = 100). It oper-
ates on single (+2.7V to +36V) or dual ( 1.35V to
18V) supplies.
The voltage reference is externally adjustable with pin-
selectable voltages of 2.5V, 5V, or 10V, allowing use
with a variety of transducers. The reference voltage is
accurate to 0.5% (max) with 35ppm/ C drift (max).
Sleep mode allows shutdown and duty cycle operation
to save power.
The INA125 is available in 16-pin plastic DIP and
SO-16 surface-mount packages and is specified for
the –40 C to +85 C industrial temperature range.
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©
1997 Burr-Brown Corporation
SBOS060
®
APPLICATIONS
PRESSURE AND TEMPERATURE BRIDGE
AMPLIFIERS
INDUSTRIAL PROCESS CONTROL
FACTORY AUTOMATION
MULTI-CHANNEL DATA ACQUISITION
BATTERY OPERATED SYSTEMS
GENERAL PURPOSE INSTRUMENTATION
V
V
REF
V
REF
V
REF
10V
PDS-1361B
INA125
SLEEP
V+
1
2
INA125
COM
12
REF
R
13
BG
R
14
2.5
2R
15
5
4R
V
10
16
REF
4
Ref
Amp
Bandgap
V
Out
REF
V
REF
+
V
IN
10
6
A
1
9
30k
11
Sense
10k
R
G
10k
V
= (V
O
8
G = 4 + 60k
A
2
7
V
IN
30k
IA
REF
5
3
V–
Printed in U.S.A., February, 1998
V
O
+
– V
) G
IN
IN
R
G

INA125PA Summary of contents

  • Page 1

    INSTRUMENTATION AMPLIFIER With Precision Voltage Reference FEATURES LOW QUIESCENT CURRENT: 460 A PRECISION VOLTAGE REFERENCE: 1.24V, 2.5V 10V SLEEP MODE LOW OFFSET VOLTAGE: 250 V max LOW OFFSET DRIFT max LOW INPUT BIAS CURRENT: 20nA ...

  • Page 2

    ... G = 500 0.002 (V+)–1.7 (V+)–0.9 (V–)+1 (V–)+0.4 1000 –9/+12 = +2.5V, +5V, +10V 0. 1.25V) to +36V 20 REF 5mA 3 L Ref Load = 2k 1. INA125PA, UA MAX MIN TYP MAX 250 500 2.5 5 10,000 0.075 0.1 0.3 0.5 0 100 0.002 0.004 0.002 0.004 0.01 0 100 ...

  • Page 3

    ... REF 1 3 INA125PA, UA MAX MIN TYP MAX 18 525 –325 25 V+ +0.1 +85 +125 +125 . (2) Dropout voltage is the G COM pin. (4) Voltage measured with respect to REF to V /2, unless otherwise noted. S INA125PA, UA MAX MIN TYP MAX 500 750 +36 525 25 INA125 UNITS kHz kHz kHz kHz ...

  • Page 4

    ... V 2.5 REF REF PACKAGE INFORMATION V COM 12 REF Sense 11 PRODUCT V 10 INA125PA O INA125P INA125UA INA125U NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. 4 (1) PACKAGE DRAWING (1) PACKAGE NUMBER 16-Pin Plastic DIP 180 ...

  • Page 5

    TYPICAL PERFORMANCE CURVES +25 C and V = 15V, unless otherwise noted GAIN vs FREQUENCY 500 100 ...

  • Page 6

    TYPICAL PERFORMANCE CURVES +25 C and V = 15V, unless otherwise noted INPUT-REFERRED VOLTAGE AND CURRENT NOISE vs FREQUENCY 1k Current Noise 100 Voltage Noise 100 1k Frequency (Hz) INPUT-REFERRED OFFSET ...

  • Page 7

    TYPICAL PERFORMANCE CURVES +25 C and V = 15V, unless otherwise noted SMALL-SIGNAL RESPONSE 100 s/div INPUT-REFERRED NOISE, 0.1Hz to 10Hz 1 s/div OUTPUT VOLTAGE SWING vs OUTPUT CURRENT V+ (V+)–1 (V+)–2 +125°C (V+)–3 (V+)–4 ...

  • Page 8

    TYPICAL PERFORMANCE CURVES +25 C and V = 15V, unless otherwise noted INPUT-REFERRED OFFSET VOLTAGE PRODUCTION DISTRIBUTION 0.1% 5 0.02% 0 Input-Referred Offset Voltage (µV) INPUT-REFERRED OFFSET VOLTAGE DRIFT ...

  • Page 9

    TYPICAL PERFORMANCE CURVES +25 C and V = 15V, unless otherwise noted 0.1Hz to 10Hz REFERENCE NOISE V = 2.5V 100pF REF L 1 s/div POSITIVE REFERENCE AC LINE REJECTION vs FREQUENCY 120 ...

  • Page 10

    APPLICATION INFORMATION Figure 1 shows the basic connections required for operation of the INA125. Applications with noisy or high impedance power supplies may require decoupling capacitors close to the device pins as shown. The output is referred to the instrumentation ...

  • Page 11

    The 60k term in equation 1 comes from the internal metal film resistors which are laser trimmed to accurate absolute values. The accuracy and temperature coefficient of these resistors are included in the gain accuracy and drift specifi- cations of ...

  • Page 12

    Approximately 180 A flows out of the V terminal, therefore recommended that it be connected through a low impedance path to sensor common to avoid possible ground loop ...

  • Page 13

    INPUT PROTECTION The inputs of the INA125 are individually protected for voltage up to 40V. For example, a condition of –40V on one input and +40V on the other input will not cause damage. Internal circuitry on each input provides ...

  • Page 14

    ... PACKAGING INFORMATION (1) Orderable Device Status INA125P ACTIVE INA125PA ACTIVE INA125PAG4 ACTIVE INA125PG4 ACTIVE INA125U ACTIVE INA125U/2K5 ACTIVE INA125U/2K5E4 ACTIVE INA125UA ACTIVE INA125UA/2K5 ACTIVE INA125UA/2K5E4 ACTIVE INA125UAG4 ACTIVE INA125UE4 ACTIVE (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. ...

  • Page 15

    In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold Customer on an annual basis. PACKAGE OPTION ADDENDUM Addendum-Page 2 ...

  • Page 16

    TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing INA125U/2K5 SOIC D INA125UA/2K5 SOIC D PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 16 2500 330.0 16.4 6.5 16 ...

  • Page 17

    Device Package Type INA125U/2K5 SOIC INA125UA/2K5 SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 2500 D 16 2500 Pack Materials-Page 2 5-Sep-2008 Width (mm) Height (mm) 346.0 346.0 33.0 346.0 346.0 ...

  • Page 18

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...