AD7322 Analog Devices, AD7322 Datasheet - Page 5

• Manufacturer Part Number: AD7322
• Description: Software Selectable True Bipolar Input, 2-Channel, 12-Bit Plus Sign ADC
• Manufacturer: Analog Devices

Specifications of AD7322

• Resolution (bits): 13bit
• # Chan: 2
• Sample Rate: 1MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni,SE-Uni
• Ain Range: Bip (Vref),Bip (Vref) x 2,Bip (Vref) x 4,Bip 10V,Bip 2.5V,Bip 5.0V,Uni (Vref) x 4,Uni 10V
• Adc Architecture: SAR
• Pkg Type: SOP

Parameter
LOGIC INPUTS
LOGIC OUTPUTS
CONVERSION RATE
POWER REQUIREMENTS
POWER DISSIPATION
1
2
3
4
5
Temperature range is −40°C to +85°C.
See the Terminology section.
Sample tested during initial release to ensure compliance.
Unipolar 0 V to 10 V range with straight binary output coding.
Bipolar range with twos complement output coding.
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Capacitance, C
Output High Voltage, V
Output Low Voltage, V
Floating-State Leakage Current
Floating-State Output Capacitance
Output Coding
Conversion Time
Track-and-Hold Acquisition Time
Throughput Rate
V
V
V
V
Normal Mode (Static)
Normal Mode (Operational)
Autostandby Mode (Dynamic)
Autoshutdown Mode (Static)
Full Shutdown Mode
Normal Mode
Full Shutdown Mode
DD
SS
CC
DRIVE
I
I
I
I
I
I
I
I
I
I
I
I
DD
SS
CC
DD
SS
CC
DD
SS
CC
DD
SS
CC
and I
and I
and I
and I
1
DRIVE
DRIVE
DRIVE
DRIVE
IN
IN
INL
INH
3
OL
OH
3
2, 3
Min
2.4
V
12
−12
2.7
2.7
DRIVE
− 0.2
Straight natural binary
Twos complement
B Version
0.9
21
Typ
10
5
Rev. A | Page 5 of 36
800
305
1
770
16.5
−16.5
5.25
5.25
360
410
3.4
200
210
1.3
1
1
1
1
1
1
31
38.25
Max
0.8
0.4
±1
0.4
±1
Unit
V
V
V
μA
pF
V
V
μA
pF
ns
ns
MSPS
kSPS
V
V
V
V
mA
μA
μA
mA
μA
μA
mA
μA
μA
μA
μA
μA
μA
mW
mW
μW
Test Conditions/Comments
V
V
V
I
I
Coding bit set to 1 in control register
Coding bit set to 0 in control register
16 SCLK cycles with SCLK = 20 MHz
Full-scale step input; see the Terminology section
See the Serial Interface section; V
V
Digital inputs = 0 V or V
See Table 6
See Table 6
See Table 6; typical specifications for V
V
f
V
V
V
f
V
V
V
SCLK on or off
V
V
V
SCLK on or off
V
V
V
V
V
V
SOURCE
SINK
S
S
CC
CC
IN
CC
DD
DD
SS
CC
DD
SS
CC
DD
SS
CC
DD
SS
CC
DD
DD
DD
= 250 kSPS
= 1 MSPS
= 0 V or V
/V
/V
/V
/V
/V
= −16.5 V
= −16.5 V
= −16.5 V
= −16.5 V
= 4.75 V to 5.25 V
= 2.7 V to 3.6 V
< 4.75 V
= 16.5 V
= 16.5 V
= 16.5 V
= 16.5 V
= 16.5 V, V
= 12 V, V
= 16.5 V, V
= 200 μA
DRIVE
DRIVE
DRIVE
DRIVE
SS
= 200 μA
= ±16.5 V, V
= 5.25 V
= 5.25 V
= 5.25 V
= 5.25 V
SS
DRIVE
SS
SS
= −12 V, V
= −16.5 V, V
= −16.5 V, V
CC
/V
DRIVE
DRIVE
CC
= 5 V
= 5.25 V
CC
CC
= 5.25 V
= 5.25 V
CC
= 4.75 V to 5.25 V
CC
AD7322
< 4.75 V