AD7734 Datasheet, PDF (4/32 Pages) Analog Devices – 4-Channel, +-10 V Input Range, High Throughput, 24-Bit sigma ADC

AD7734
Parameter
Min
Typ
BIAS0 to 3, BIASHI Pin Impedance^{1, 8} 12.5
15.5
Input Resistor Matching
0.2
Input Resistor Temp. Coefficient
–30
REFERENCE INPUTS
REFIN(+) to REFIN(–) Voltage^{1, 9}
2.475
2.5
NOREF Trigger Voltage
0.5
REFIN(+), REFIN(–)
Common-Mode Voltage¹
0
Reference Input DC Current¹⁰
SYSTEM CALIBRATION^{1, 11}
Full-Scale Calibration Limit
Zero-Scale Calibration Limit
–1.05 × FS
Input Span
0.8 × FS
LOGIC INPUTS
Input Current
Input Current CS
Input Capacitance
VT+1
VT–1
VT+ – VT–1
VT+1
VT– ¹
VT+ – VT–1
5
1.4
0.8
0.3
0.95
0.4
0.3
MCLK IN ONLY
Input Current
Input Capacitance
5
VINL Input Low Voltage
VINH Input High Voltage
3.5
VINL Input Low Voltage
VINH Input High Voltage
2.5
LOGIC OUTPUTS¹²
VOL Output Low Voltage
VOH Output High Voltage
VOL Output Low Voltage
VOH Output High Voltage
Floating State Leakage Current
4.0
DVDD – 0.6
Floating State Leakage Capacitance
3
P0, P1 INPUTS/OUTPUTS
Input Current
VINL Input Low Voltage
VINH Input High Voltage
3.5
VOL Output Low Voltage
VOH Output High Voltage
4.0
POWER REQUIREMENTS
AVDD–AGND Voltage
4.75
DVDD–DGND Voltage
4.75
2.70
AVDD Current (Normal Mode)
13.5
DVDD Current (Normal Mode) ¹³
2.8
DVDD Current (Normal Mode) ¹³
1.0
Max
Unit
kΩ
%
ppm/°C
2.525
V
V
AVDD
V
400
µA
+1.05 × FS ^V
V
2.1 × FS
V
±1
µA
±10
µA
–40
µA
pF
2
V
1.4
V
0.85
V
2
V
1.1
V
0.85
V
±10
µA
pF
0.8
V
V
0.4
V
V
0.4
V
V
0.4
V
V
±1
µA
pF
±10
µA
0.8
V
V
0.4
V
V
5.25
V
5.25
V
3.60
V
15.9
mA
3.1
mA
1.5
mA
Rev. 0 | Page 4 of 32
Test Conditions/Comments
NOREF Bit in Channel Status Register
CS = DVDD
CS = DGND, Internal Pull-Up Resistor
DVDD = 5 V
DVDD = 5 V
DVDD = 5 V
DVDD = 3 V
DVDD = 3 V
DVDD = 3 V
DVDD = 5 V
DVDD = 5 V
DVDD = 3 V
DVDD = 3 V
ISINK = 800 µA, DVDD = 5 V
ISOURCE = 200 µA, DVDD = 5 V
ISINK = 100 µA, DVDD = 3 V
ISOURCE = 100 µA, DVDD = 3 V
Levels Referenced to Analog Supplies
AVDD = 5 V
AVDD = 5 V
ISINK = 7 mA, See Abs. Max. Ratings
ISOURCE = 200 µA, AVDD = 5 V
AVDD = 5 V
DVDD = 5 V
DVDD = 3 V