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AD7323 Datasheet(PDF) 6 Page - Analog Devices

Part # AD7323
Description  500 kSPS, 4-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7323 Datasheet(HTML) 6 Page - Analog Devices

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Data Sheet
AD7323
Rev. B | Page 5 of 36
B Version
Parameter1
Min
Typ
Max
Unit
Test Conditions/Comments
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
Reference Output Voltage
Error at 25°C
±5
mV
Reference Output Voltage
TMIN to TMAX
±10
mV
Reference Temperature
Coefficient
3
25
ppm/°C
Reference Output
Impedance
7
LOGIC INPUTS
Input High Voltage, VINH
2.4
V
Input Low Voltage, VINL
0.8
V
VCC = 4.75 V to 5.25 V
0.4
V
VCC = 2.7 V to 3.6 V
Input Current, IIN
±1
µA
VIN = 0 V or VDRIVE
Input Capacitance, CIN3
10
pF
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE − 0.2 V
V
ISOURCE = 200 µA
Output Low Voltage, VOL
0.4
V
ISINK = 200 µA
Floating-State Leakage
Current
±1
µA
Floating-State Output
Capacitance3
5
pF
Output Coding
Straight natural binary
Coding bit set to 1 in control register
Twos complement
Coding bit set to 0 in control register
CONVERSION RATE
Conversion Time
1.6
µs
16 SCLK cycles with SCLK = 10 MHz
Track-and-Hold Acquisition
Time2, 3
305
ns
Full-scale step input; see the
Terminology section
Throughput Rate
500
kSPS
See the
Serial Interface section
POWER REQUIREMENTS
Digital inputs = 0 V or VDRIVE
VDD
12
16.5
V
See
Table 6
VSS
−12
−16.5
V
See
Table 6
VCC
2.7
5.25
V
See
Table 6
VDRIVE
2.7
5.25
V
Normal Mode (Static)
0.9
mA
VDD/VSS = ±16.5 V, VCC/VDRIVE = 5.25 V
Normal Mode (Operational)
fS = 500 kSPS
IDD
180
µA
VDD = 16.5 V
ISS
205
µA
VSS = −16.5 V
ICC and IDRIVE
2.2
mA
VCC/VDRIVE = 5.25 V
Autostandby Mode
(Dynamic)
fS = 250 kSPS
IDD
100
µA
VDD = 16.5 V
ISS
110
µA
VSS = −16.5 V
ICC and IDRIVE
0.75
mA
VCC/VDRIVE = 5.25 V


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