INA333 datasheet(5/49 Pages) TI2

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PGA280

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SBOS487B – JUNE 2009 – REVISED MARCH 2020

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Electrical Characteristics (continued)

at TA = 25°C, VSP = 15 V, VSN = –15 V, VSON = 0 V, VSOP = 5 V, DVDD = 3 V, DGND = 0 V, RL = 2.5 kΩ to VSOP/2 =

VOCM, G = 1 V/V, using internal clock, BUF inactive, VCM = 0 V, and differential input and output (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(5)

Gains smaller than ½ are measured with smaller output swing.

(6)

See Figure 11 for typical gain error drift of various gain settings.

(7)

Only G = 1 is production tested.

INPUT BIAS CURRENT(3)

Bias current

Gain = 1 V/V

±0.3

±1

Gain = 128 V/V

±0.8

±2

Gain = 1 V/V, gain = 128 V/V, TA = –40°C to +105°C

±0.6

±2

IOS

Offset current

Gain = 1 V/V, gain = 128 V/V

±0.1

±0.5

Gain = 1 V/V, gain = 128 V/V, TA = –40°C to +105°C

±0.9

±2

NOISE

eNI

Voltage noise, RTI; target

f = 0.01 Hz to 10 Hz

RS = 0 Ω, G = 128 V/V

420

nVPP

RS = 0 Ω, G = 1 V/V

4.5

μVPP

f = 1 kHz

RS = 0 Ω, G = 128 V/V

nV/

√Hz

RS = 0 Ω, G = 1 V/V

240

nV/

√Hz

Current noise, RTI

f = 0.01 Hz to 10 Hz

RS = 10 MΩ, G = 128 V/V

1.7

pAPP

f = 1 kHz

RS = 10 MΩ, G = 128 V/V

fA/

√Hz

GAIN (Output Swing = ±4.5 V)(5)

Range of input gain

⅛ to 128

V/V

Range of output gain

1 and 1

⅜

V/V

Gain error, all binary steps

All gains

±0.03

±0.15

vs temperature(2) (6)

No load, all gains except G = 128 V/V, TA = –40°C to

+105°C

–0.5

±2

ppm/°C

No load, G = 128 V/V, TA = –40°C to +105°C

–1

±3

ppm/°C

Gain step matching(3) (gain to

gain)

No load, all gains

See Typical Characteristics

Nonlinearity

No load, all gains(7)

1.5

ppm

Nonlinearity over

temperature(2)

No load, all gains, TA = –40°C to +105°C

ppm

OUTPUT

Voltage output swing from

rail(3)

TA = –40°C to +105°C

VSOP = 5 V,

load current 2 mA

100

VSOP = 2.7 V,

load current 1.5 mA

100

Capacitive load drive

500

ISC

Short-circuit current

To VSOP/2, gain = 1.375 V/V

Output resistance

Each output VOP and VON

200

Ω

VOCM

VOCM supply voltage

VSP – 2 V > VOCM, TA = –40°C to +105°C

(VSON) +

0.1

(VSOP) –

0.1

Bias current into VOCM

100

VOCM input resistance

Ω

INTERNAL OSCILLATOR

Frequency of internal

clock(2)(3)

0.8

1.2

MHz

Ext. oscillator frequency

0.8

1.2

MHz

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