AD7899
A
B
S
Parameter
Version1
Version1
Version1
Unit
Test Conditions/Comments
L
OGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
VDRIVE/2 + 0.4 VDRIVE/2 + 0.4 VDRIVE/2 + 0.4 V min
VDD = 5 V 5%
VDD = 5 V 5%
VDRIVE/2 – 0.4 VDRIVE/2 – 0.4 VDRIVE/2 – 0.4
10 10 10
10 10 10
V max
µA max
pF max
4
Input Capacitance, CIN
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
DB13–DB0
VDRIVE – 0.4
0.4
VDRIVE – 0.4
0.4
VDRIVE – 0.4
0.4
V min
V max
ISOURCE = 400 µA
ISINK = 1.6 mA
High Impedance
Leakage Current
Capacitance4
10
10
10
10
10
10
µA max
pF max
Output Coding
AD7899-1, AD7899-3
AD7899-2
Two’s Complement
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
2.2
0.3
400
2.2
0.3
400
2.2
0.3
400
µs max
Track/Hold Acquisition Time2, 3
Throughput Time
µs max
kSPS max
POWER REQUIREMENTS
VDD
5
5
5
V nom
IDD
Normal Mode
Standby Mode
25
20
25
20
25
20
mA max
µA max
Typically 16 mA
(5 µA typ) Logic Inputs = 0 V or
VDD
Power Dissipation
Normal Mode
Standby Mode
125
100
125
100
125
125
mW max Typically 80 mW, VDD = 5 V
µW max
NOTES
1 Temperature Ranges are as follows : A, B Versions: –40ꢀC to +85ꢀC. S Version: –55°C to +125°C.
2 Performance measured through full channel (SHA and ADC).
3 See Terminology.
4Sample tested @ 25°C to ensure compliance.
Specifications subject to change without notice.
–3–
REV. A
ADI [ ADI ]
