(e ) +

NI

2

e

NO

G

2

6

INA826

SBOS562G – AUGUST 2011 – REVISED JUNE 2020

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Copyright © 2011–2020, Texas Instruments Incorporated

(1)

Total offset, referred-to-input (RTI): VOS = (VOSI) + (VOSO / G).

(2)

Input voltage range of the INA826 input stage. The input range depends on the common-mode voltage, differential voltage, gain, and

reference voltage. See Typical Characteristic curves Figure 9 through Figure 16 and Figure 41 through Figure 44 for more information.

(3)

Total RTI voltage noise =

.

7.5 Electrical Characteristics

at TA = 25°C, VS = ±15 V, RL = 10 kΩ, VREF = 0 V, and G = 1 (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INPUT

VOSI

Input stage offset voltage(1)

RTI

40

150

µV

vs temperature, TA = –40°C to +125°C

0.4

2

µV/°C

VOSO

Output stage offset

voltage(1)

RTI

200

700

µV

vs temperature, TA = –40°C to +125°C

2

10

µV/°C

PSRR

Powersupply rejection ratio

G = 1, RTI

100

124

dB

G = 10, RTI

115

130

G = 100, RTI

120

140

G = 1000, RTI

120

140

zid

Differential impedance

20 || 1

GΩ || pF

zic

Common-mode impedance

10 || 5

GΩ || pF

RFI filter, –3-dB frequency

20

MHz

VCM

Operating input range(2)

V–

(V+) – 1

V

VS = ±1.5 V to ±18 V

TA = –40°C to +125°C

See Figure 41 to Figure 44

Input overvoltage range

TA = –40°C to +125°C

±40

V

CMRR

Common-mode rejection

ratio

At dc to

60 Hz, RTI

G = 1, VCM = (V–) to (V+) – 1 V

84

95

dB

G = 10, VCM = (V–) to (V+) – 1 V

104

115

G = 100, VCM = (V–) to (V+) – 1 V

120

130

G = 1000, VCM = (V–) to (V+) – 1 V

120

130

G = 1, VCM = (V–) to (V+) – 1 V,

TA = –40°C to +125°C

80

At 5 kHz,

RTI

G = 1, VCM = (V–) to (V+) – 1 V

84

G = 10, VCM = (V–) to (V+) – 1 V

100

G = 100, VCM = (V–) to (V+) – 1 V

105

G = 1000, VCM = (V–) to (V+) – 1 V

105

BIAS CURRENT

IB

Input bias current

VCM = VS / 2

35

65

nA

TA = –40°C to +125°C

95

IOS

Input offset current

VCM = VS / 2

0.7

5

nA

TA = –40°C to +125°C

10

NOISE VOLTAGE

eNI

Input stage voltage noise(3)

f = 1 kHz, G = 100, RS = 0 Ω

18

20

nV/

√Hz

fB = 0.1 Hz to 10 Hz, G = 100, RS = 0 Ω

0.52

µVPP

eNO

Output stage voltage noise(3)

f = 1 kHz, G = 1, RS = 0 Ω

110

115

nV/

√Hz

fB = 0.1 Hz to 10 Hz, G = 1, RS = 0 Ω

3.3

µVPP

In

Noise current

f = 1 kHz

100

fA/

√Hz

fB = 0.1 Hz to 10 Hz

5

pAPP