INA145 datasheet(2/15 Pages) TI1

2 / 15 page

INA145

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes

no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change

without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant

any BURR-BROWN product for use in life support devices and/or systems.

INA145UA

PARAMETER

CONDITION

MIN

TYP

MAX

UNITS

OFFSET VOLTAGE, VO

RTI(1, 2)

Input Offset Voltage

VOS

VCM = VO = 0V

±0.2

±1mV

vs Temperature

∆V

OS /∆T

See Typical Curve

vs Power Supply

PSRR

VS = ±1.35V to ±18V

±20

±60

µV/V

vs Time

±0.3

µV/mo

Offset Voltage, V01

RTI(1, 2)

±0.4

INPUT VOLTAGE RANGE

Common-Mode Voltage Range

VCM

(VIN+) – (VIN–) = 0V, VO = 0V

2(V–)

2(V+) –2

Common-Mode Rejection

CMRR

VCM = 2(V–) to 2(V+) – 2V, RS = 0Ω

Over Temperature

VS = ±15V

INPUT BIAS CURRENT(2)

VCM = VS/2

Bias Current

±50

Offset Current

IOS

±5nA

INPUT IMPEDANCE

Differential (non-inverting input)

Ω

Differential (inverting input)

Ω

Common-Mode

Ω

NOISE

RTI(1, 3)

Voltage Noise, f = 0.1Hz to 10Hz

µVp-p

Voltage Noise Density, f = 1kHz

nV/

√Hz

GAIN

G = 1 to 1000

Gain Equation

G = 1 + RG2 /RG1

V/ V

Initial(1)

1V/V

Gain Error

RL = 100kΩ, VO = (V–)+0.15 to (V+)–1, G = 1

±0.01

±0.1

vs Temperature

RL = 100kΩ, VO = (V–)+0.25 to (V+)–1, G = 1

±2

±10

ppm /

°C

RL = 10kΩ, VO = (V–)+0.3 to (V+)–1.25, G = 1

±0.01

±0.1

vs Temperature

RL = 10kΩ, VO = (V–)+0.5 to (V+)–1.25, G = 1

±2

±10

ppm /

°C

Nonlinearity

RL = 10kΩ, VO = (V–)+0.3 to (V+)–1.25, G = 1

±0.0002

±0.005

% of FS

FREQUENCY RESPONSE

Small Signal Bandwidth

G = 1

500

kHz

G = 10

kHz

Slew Rate

0.45

µs

Settling Time, 0.1%

G = 1, 10V Step

µs

0.01%

G = 1, 10V Step

µs

Overload Recovery

50% Input Overload

µs

OUTPUT, VO

Voltage Output

RL = 100kΩ, G = 1

(V–) + 0.15

(V+) – 1

Over Temperature

RL = 100kΩ, G = 1

(V–) + 0.25

(V+) – 1

RL = 10kΩ, G = 1

(V–) + 0.3

(V+) – 1.25

Over Temperature

RL = 10kΩ, G = 1

(V–) + 0.5

(V+) – 1.25

Short-Circuit Current

Continuous to Common

±15

Capacitive Load

Stable Operation

1000

POWER SUPPLY

Specified Voltage Range, Dual Supplies

±2.25

±18

Operating Voltage Range

±1.35

±18

Quiescent Current

VIN = 0, IO = 0

±570

±700

µA

Over Temperature

±800

µA

TEMPERATURE RANGE

Specified Range

–40

+85

°C

Operating Range

–55

+125

°C

Storage Range

–55

+125

°C

Thermal Resistance

150

°C/W

NOTES: (1) Referred to input pins (VIN+ and VIN–), Gain = 1V/V. Specified with 10kΩ in feedback of A2. (2) Input offset voltage specification includes effects of amplifier’s

input bias and offset currents. (3) Includes effects of input bias current noise and thermal noise contribution of resistor network.

SPECIFICATIONS: VS = ±2.25V to ±18V

Boldface limits apply over the specified temperature range, TA = –40°C to +85°C

At TA = +25°C, G = 1, RL = 10kΩ connected to ground and ref pin connected to ground unless otherwise noted.

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