AD7864
Parameter
AD7864-2
Input Voltage Range
Input Current (0 V to 2.5 V Option)
Input Resistance (0 V to 5 V Option)
REFERENCE INPUT/OUTPUT
VREF In Input Voltage Range
VREF In Input Capacitance4
VREF Out Output Voltage
VREF Out Error @ 25°C
VREF Out Error TMIN to TMAX
VREF Out Temperature Coefficient
VREF Out Output Impedance
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input Capacitance, CIN4
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
DB11 to DB0
High Impedance
Leakage Current
Capacitance4
Output Coding
AD7864-1, AD7864-3
AD7864-2
CONVERSION RATE
Conversion Time
Track-And-Hold Acquisition Time2, 3
Throughput Time
POWER REQUIREMENTS
VDD
IDD
Normal Mode
Standby Mode
Power Dissipation
Normal Mode
Standby Mode
A Version1 B Version
0 to 2.5, 0 to 5
±100
9
0 to 2.5, 0 to 5
±100
9
2.375/2.625
10
2.5
±10
±20
25
6
2.375/2.625
10
2.5
±10
±20
25
6
2.4
2.4
0.8
0.8
±10
±10
10
10
4.0
4.0
0.4
0.4
±10
±10
10
10
Twos complement
Straight (natural) binary
1.65
1.65
0.35
0.35
130
130
5
5
24
24
20
20
120
120
100
100
Unit
V
nA max
kΩ min
VMIN/VMAX
pF max
V nom
mV max
mV max
ppm/°C typ
kΩ typ
V min
V max
μA max
pF max
V min
V max
μA max
pF max
μs max
μs max
kSPS max
V nom
mA max
μA max
mW max
μW max
Test Conditions/Comments
2.5 V ± 5%
See the Reference section
VDD = 5 V ± 5%
VDD = 5 V ± 5%
ISOURCE = 400 μA
ISINK = 1.6 mA
For one channel
For all four channels
±5% for specified performance
5 μA typical, logic inputs = 0 V or VDD
Typically 4 μA
Typically 90 mW
Typically 20 μW
1 Temperature ranges are as follows: A, B versions: –40°C to +85°C. The A version is fully specified up to 105°C with a maximum sample rate of 450 kSPS and IDD
maximum (normal mode) of 26 mA.
2 Performance is measured through the full channel (SHA and ADC).
3 See the Terminology section.
4 Sample tested at initial release to ensure compliance.
Rev. D | Page 4 of 28