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AD7328 Datasheet(PDF) 4 Page - Analog Devices

Part No. AD7328
Description  8-Channel, Software-Selectable True Bipolar Input, 12-Bit Plus Sign ADC
Download  36 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD7328 Datasheet(HTML) 4 Page - Analog Devices

 
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AD7328
Rev. A | Page 4 of 36
B Version
Parameter1
Min
Typ
Max
Unit
Test Conditions/Comments
Offset Error2, 5
−4/+9
LSB
Single-ended/pseudo differential mode
−7/+10
LSB
Differential mode
Offset Error Match2, 5
±0.6
LSB
Single-ended/pseudo differential mode
±0.5
LSB
Differential mode
Gain Error2, 5
±8
LSB
Single-ended/pseudo differential mode
±14
LSB
Differential mode
Gain Error Match2, 5
±0.5
LSB
Single-ended/pseudo differential mode
±0.5
LSB
Differential mode
Positive Full-Scale Error2, 6
±4
LSB
Single-ended/pseudo differential mode
±7
LSB
Differential mode
Positive Full-Scale Error Match2, 6
±0.5
LSB
Single-ended/pseudo differential mode
±0.5
LSB
Differential mode
Bipolar Zero Error2, 6
±8.5
LSB
Single-ended/pseudo differential mode
±7.5
LSB
Differential mode
Bipolar Zero Error Match2, 6
±0.5
LSB
Single-ended/pseudo differential mode
±0.5
LSB
Differential mode
Negative Full-Scale Error2, 6
±4
LSB
Single-ended/pseudo differential mode
±6
LSB
Differential mode
Negative Full-Scale Error Match2, 6
±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
V
VDD = 10 V min, VSS = −10 V min, VCC = 2.7 V to 5.25 V
±5
V
VDD = 5 V min, VSS = −5 V min, VCC = 2.7 V to 5.25 V
±2.5
V
VDD = 5 V min, VSS = − 5 V min, VCC = 2.7 V to 5.25 V
0 to 10
V
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
V
Reference = 2.5 V; range = ±10 V
±6
V
Reference = 2.5 V; range = ±5 V
±5
V
Reference = 2.5 V; range = ±2.5 V
+3/−5
V
Reference = 2.5 V; range = 0 V to +10 V
DC Leakage Current
±200
nA
VIN = VDD or VSS
Input Capacitance3
13.5
pF
When in track, ±10 V range
16.5
pF
When in track, ±5 V and 0 V to +10 V ranges
21.5
pF
When in track, ±2.5 V range
3
pF
When in hold, all ranges
REFERENCE INPUT/OUTPUT
Input Voltage Range
2.5
3
V
Input DC Leakage Current
±1
μA
Input Capacitance
10
pF
Reference Output Voltage
2.5
V
Long Term Stability
150
ppm
For 1000 hours
Output Voltage Hysteresis2
50
ppm
Reference Output Voltage Error
@ 25°C
±5
mV
Reference Output Voltage
TMIN to TMAX
±10
mV
Reference Temperature
Coefficient
25
ppm/°C
6
ppm/°C
Reference Output Impedance
7
Ω


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