Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp, differential amplifier Differential SOIC 8

Low Power, Single-Supply

DIFFERENCE AMPLIFIER

FEATURES

● LOW QUIESCENT CURRENT: 160µA

● WIDE SUPPLY RANGE

Single Supply: 2.7V to 36V

Dual Supplies:

±1.35V to ±18V

● LOW GAIN ERROR:

±0.075% max

● LOW NONLINEARITY: 0.001% max

● HIGH CMR: 90dB

● HIGHLY VERSATILE CIRCUIT

● EASY TO USE

● LOW COST

● 8-PIN DIP AND SO-8 PACKAGES

INA132

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

DESCRIPTION

The INA132 is a low power, unity-gain differential

amplifier consisting of a precision op amp with a

precision resistor network. The on-chip resistors are

laser trimmed for accurate gain and high common-

mode rejection. Excellent TCR tracking of the resis-

tors maintains gain accuracy and common-mode re-

jection over temperature. The internal op amp’s com-

mon-mode range extends to the negative supply—

ideal for single-supply applications. It operates on

single (2.7V to 36V) or dual supplies (±1.35V to

±18V).

The differential amplifier is the foundation of many

commonly used circuits. The INA132 provides this

circuit function without using an expensive precision

resistor network. The INA132 is available in 8-pin

DIP and SO-8 surface-mount packages and is speci-

fied for operation over the extended industrial tem-

perature range, –40°C to +85°C.

APPLICATIONS

● DIFFERENTIAL INPUT AMPLIFIER

● INSTRUMENTATION AMPLIFIER

BUILDING BLOCK

● UNITY-GAIN INVERTING AMPLIFIER

● G = 1/2 AMPLIFIER

● G = 2 AMPLIFIER

● SUMMING AMPLIFIER

● DIFFERENTIAL CURRENT RECEIVER

● VOLTAGE-CONTROLLED CURRENT SOURCE

● BATTERY-POWERED SYSTEMS

● GROUND LOOP ELIMINATOR

–In

+In

V–

40kΩ40kΩ

Sense

Ref

Output

V+

INA132



SBOS059

Summary of content (13 pages)

PAGE 1
® INA1 INA132 32 INA1 32 Low Power, Single-Supply DIFFERENCE AMPLIFIER FEATURES APPLICATIONS ● LOW QUIESCENT CURRENT: 160µA ● DIFFERENTIAL INPUT AMPLIFIER ● WIDE SUPPLY RANGE Single Supply: 2.7V to 36V Dual Supplies: ±1.35V to ±18V ● LOW GAIN ERROR: ±0.075% max ● LOW NONLINEARITY: 0.
PAGE 2
SPECIFICATIONS: VS = ±15V At TA = +25°C, VS = ±15V, RL = 10kΩ connected to Ground, and Reference Pin connected to Ground, unless otherwise noted. INA132P, U PARAMETER CONDITIONS OFFSET VOLTAGE(1) Initial vs Temperature vs Power Supply vs Time MIN OUTPUT VOLTAGE NOISE(3) f = 0.1Hz to 10Hz f = 1kHz MAX ±75 ±1 ±5 0.3 ±250 ±5 ±30 MIN TYP MAX UNITS ✽ ✽ ✽ ✽ ±500 ±10(4) ✽ µV µV/°C µV/V µV/mo RTO VS = ±1.
PAGE 3
SPECIFICATIONS: VS = +5V At TA = +25°C, VS = +5V, RL = 10kΩ connected to VS/2, and Reference Pin connected to VS/2, unless otherwise noted. INA132P, U PARAMETER OFFSET VOLTAGE(1) Initial vs Temperature INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection CONDITIONS RTO MIN INA132PA, UA TYP MAX ±150 ±2 ±500 MIN TYP MAX UNITS ✽ ✽ ±750 µV µV/°C ✽ VCM = 0V to 8V, RS = 0Ω 0 76 90 ✽ 70 ✽ V dB RL = 100kΩ RL = 100kΩ RL = 10kΩ RL = 10kΩ (V+)–1 +0.25 (V+)–1 +0.25 (V+)–0.75 +0.
PAGE 4
TYPICAL PERFORMANCE CURVES At TA = +25°C and VS = ±15V, unless otherwise noted. COMMON-MODE REJECTION vs FREQUENCY GAIN vs FREQUENCY 100 20 CL = 100pF RL = 10kΩ Common-Mode Rejection (dB) Closed-Loop Gain (dB) VS = ±15V or +5V 0 CL = 1000pF RL = ∞ –20 –40 90 VS = ±15V 80 VS = +5V 70 60 50 40 30 –60 10k 100k 10 1M 100 1k Frequency (Hz) V+ VS = +5V 60 –PSRR 40 125°C (V+) –0.
PAGE 5
TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C and VS = ±15V, unless otherwise noted. SMALL-SIGNAL STEP RESPONSE CL = 1000pF 50mV/div 50mV/div SMALL-SIGNAL STEP RESPONSE CL = 200pF 10µs/div 10µs/div SETTLING TIME vs LOAD CAPACITANCE LARGE-SIGNAL STEP RESPONSE 100 10V Step 5V/div Settling Time (µs) 96 0.01% 92 88 84 0.1% 80 100pF 100µs/div 1000pF 10,000pF Load Capacitance INPUT COMMON-MODE VOLTAGE RANGE vs OUTPUT VOLTAGE 0.
PAGE 6
TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C and VS = ±15V, unless otherwise noted. OFFSET VOLTAGE PRODUCTION DISTRIBUTION OFFSET VOLTAGE PRODUCTION DISTRIBUTION 18 25 16 Percent of Amplifiers (%) 20 15 10 5 0.1% 0.2% 0.1% VS = +5V 14 12 10 8 6 4 0.1% 2 0.1% OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION 40 VS = ±15V 35 Percent of Amplifiers (%) 30 25 20 15 10 0.2% 5 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.
PAGE 7
APPLICATIONS INFORMATION supply ground). Although input voltages on pins 2 and 3 that are below the negative supply voltage will not damage the device, operation in this region is not recommended. Transient conditions at the inverting input terminal below the negative supply can cause a positive feedback condition that could lock the INA132’s output to the negative rail. Figure 1 shows the basic connections required for operation of the INA132.
PAGE 8
BUF634 inside feedback loop contributes no error. INA132 V1 INA132 –In 2 –In A1 5 5 2 R2 6 6 R1 A2 +In The INA132 can be combined with op amps to form a complete instrumentation amplifier with specialized performance characteristics. BurrBrown offers many complete high performance IAs. Products with related performances are shown at the right. OPA27 OPA129 OPA177 OPA2130 OPA2234 OPA2237 (Low IQ mode) RL FIGURE 4. Low Power, High Output Current Precision Difference Amplifier.
PAGE 9
Set R1 = R2 V+ 0V to 10V In 12.5kΩ 1kΩ 7 50kΩ INA132 2 OPA27 +15V V2 2 5 40kΩ 40kΩ 6 REF10 6 10V For 4-20mA applications, the REF10 sets the 4mA low-scale output for 0V input. V3 3 40kΩ 40kΩ R1 50.1Ω 2N3904 1 R2 50.1Ω 4 4 IO = 4 to 20mA IO = V3 – V2 RLOAD 1 1 + 40kΩ R2 FIGURE 7. Precision Voltage-to-Current Conversion. The difference amplifier is a highly versatile building block that is useful in a wide variety of applications.
PAGE 10
PACKAGE OPTION ADDENDUM www.ti.
PAGE 11
PACKAGE MATERIALS INFORMATION www.ti.com 20-Oct-2009 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant INA132U/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 INA132UA/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 20-Oct-2009 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) INA132U/2K5 SOIC D 8 2500 346.0 346.0 29.0 INA132UA/2K5 SOIC D 8 2500 346.0 346.0 29.
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