AD7322 datasheet(5/37 Pages) AD

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AD7322

Data Sheet

Rev. B | Page 4 of 36

B Version

Parameter1

Min

Typ

Max

Unit

Test Conditions/Comments

Differential Nonlinearity2

−0.9/+1.5

LSB

Differential mode; guaranteed no missing codes to

13 bits

±0.9

LSB

Single-ended mode; guaranteed no missing codes

to 12 bits

−0.7/+1

LSB

Single-ended/pseudo differential mode

(LSB = FSR/8192)

Offset Error2, 4

−4/+9

LSB

Single-ended/pseudo differential mode

−7/+10

LSB

Differential mode

Offset Error Match2, 4

±0.6

LSB

Single-ended/pseudo differential mode

±0.5

LSB

Differential mode

Gain Error2, 4

±8

LSB

Single-ended/pseudo differential mode

±14

LSB

Differential mode

Gain Error Match2, 4

±0.5

LSB

Single-ended/pseudo differential mode

±0.5

LSB

Differential mode

Positive Full-Scale Error2, 5

±4

LSB

Single-ended/pseudo differential mode

±7

LSB

Differential mode

Positive Full-Scale Error Match2, 5

±0.5

LSB

Single-ended/pseudo differential mode

±0.5

LSB

Differential mode

Bipolar Zero Error2, 5

±8.5

LSB

Single-ended/pseudo differential mode

±7.5

LSB

Differential mode

Bipolar Zero Error Match2, 5

±0.5

LSB

Single-ended/pseudo differential mode

±0.5

LSB

Differential mode

Negative Full-Scale Error2, 5

±4

LSB

Single-ended/pseudo differential mode

±6

LSB

Differential mode

Negative Full-Scale Error Match2,5

±0.5

LSB

Single-ended/pseudo differential mode

±0.5

LSB

Differential mode

ANALOG INPUT

Input Voltage Ranges

Reference = 2.5 V; see Table 6

(Programmed via Range Register)

±10

VDD = 10 V min, VSS = −10 V min, VCC = 2.7 V to 5.25 V

±5

VDD = 5 V min, VSS = −5 V min, VCC = 2.7 V to 5.25 V

±2.5

VDD = 5 V min, VSS = − 5 V min, VCC = 2.7 V to 5.25 V

0 to 10

VDD = 10 V min, VSS = AGND min, VCC = 2.7 V to 5.25 V

Pseudo Differential VIN(−) Input

Range

VDD = 16.5 V, VSS = −16.5 V, VCC = 5 V; see Figure 40

and Figure 41

±3.5

Reference = 2.5 V; range = ±10 V

±6

Reference = 2.5 V; range = ±5 V

±5

Reference = 2.5 V; range = ±2.5 V

+3/−5

Reference = 2.5 V; range = 0 V to +10 V

DC Leakage Current

±80

VIN = VDD or VSS

Per channel, VIN = VDD or VSS

Input Capacitance3

13.5

When in track, ±10 V range

16.5

When in track, ±5 V and 0 V to +10 V range

21.5

When in track, ±2.5 V range

When in hold, all ranges

REFERENCE INPUT/OUTPUT

Input Voltage Range

2.5

Input DC Leakage Current

±1

µA

Input Capacitance

Reference Output Voltage

2.5

Reference Output Voltage Error at

25°C

±5

Reference Output Voltage

TMIN to TMAX

±10

Reference Temperature Coefficient

ppm/°C

Reference Output Impedance

Ω

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