AD7732 Analog Devices, AD7732 Datasheet - Page 4

• Manufacturer Part Number: AD7732
• Manufacturer: Analog Devices

Specifications of AD7732

• Resolution (bits): 24bit
• # Chan: 2
• Sample Rate: 3.05MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: Bip 10V,Bip 5.0V,Uni 10V,Uni 5.0V
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

AD7732
Parameter
REFERENCE INPUTS
SYSTEM CALIBRATION
LOGIC INPUTS
MCLK IN ONLY
LOGIC OUTPUTS
P0, P1 INPUTS/OUTPUTS
POWER REQUIREMENTS
RA, RB, RC, RD Pin Impedance
Input Resistor Matching
Input Resistor Temp. Coefficient
REFIN(+) to REFIN(–) Voltage
NOREF Trigger Voltage
REFIN(+), REFIN(–)
Common-Mode Voltage
Reference Input DC Current
Full-Scale Calibration Limit
Zero-Scale Calibration Limit
Input Span
Input Current
Input Current CS
Input Capacitance
V
V
V
V
V
V
Input Current
Input Capacitance
V
V
V
V
V
V
V
V
Floating State Leakage Current
Floating State Leakage Capacitance
Input Current
V
V
V
V
AV
DV
AV
DV
DV
T+
T–
T+
T+
T–
T+
INL
INH
INL
INH
OL
OH
OL
OH
INL
INH
OL
OH
1
DD
DD
1
1
DD
DD
DD
1
– V
– V
Output Low Voltage
Output Low Voltage
Output Low Voltage
Output High Voltage
Output High Voltage
Output High Voltage
Input Low Voltage
Input Low Voltage
Input Low Voltage
Input High Voltage
Input High Voltage
Input High Voltage
–AGND Voltage
–DGND Voltage
Current (Normal Mode)
Current (Normal Mode)
Current (Normal Mode)
T–
T–
1
1
13
1, 12
1
11
1, 10
14
14
1, 9
Min
25
2.475
0
–1.05 × FS
0.8 × FS
1.4
0.8
0.3
0.95
0.4
0.3
3.5
2.5
4.0
DV
3.5
4.0
4.75
4.75
2.70
DD
– 0.6
Typ
31
0.2
–30
2.5
0.5
5
5
3
13.5
2.8
1.0
Rev. A | Page 4 of 32
Max
2.525
AV
400
+1.05 × FS
2.1 × FS
±1
±10
–40
2
1.4
0.85
2
1.1
0.85
±10
0.8
0.4
0.4
0.4
±1
±10
0.8
0.4
5.25
5.25
3.60
15.9
3.1
1.5
DD
Unit
kΩ
%
ppm/°C
V
V
V
μA
V
V
V
μA
μA
μA
pF
V
V
V
V
V
V
μA
pF
V
V
V
V
V
V
V
V
μA
pF
μA
V
V
V
V
V
V
V
mA
mA
mA
Test Conditions/Comments
NOREF Bit in Channel Status Register
CS = DV
CS = DGND, Internal Pull-Up Resistor
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
I
I
I
I
Levels Referenced to Analog Supplies
AV
AV
I
I
AV
DV
DV
SINK
SOURCE
SINK
SOURCE
SINK
SOURCE
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
= 7 mA, See Abs. Max. Ratings
= 5 V
= 5 V
= 5 V
= 3 V
= 3 V
= 3 V
= 5 V
= 5 V
= 3 V
= 3 V
= 5 V
= 5 V
= 5 V
= 5 V
= 3 V
= 800 μA, DV
= 100 μA, DV
= 200 μA, DV
= 100 μA, DV
= 200 μA, AV
DD
DD
DD
DD
DD
DD
= 5 V
= 3 V
= 5 V
= 5 V
= 3 V