(VDD = 5 V ؎ 5%, AGND = DGND = 0 V, VREF = Internal. Clock = Internal, all specifications
TMIN to TMAX and valid for VDRIVE = 3 V ؎ 5% and 5 V ؎ 5% unless otherwise noted.)
AD7899–SPECIFICATIONS
A
B
S
Parameter
Version1
Version1
Version1
Unit
Test Conditions/Comments
SAMPLE AND HOLD
–0.1 dB Full Power Bandwidth
–3 dB Full Power Bandwidth
Aperture Delay
500
4.5
20
500
4.5
20
500
4.5
20
kHz typ
MHz typ
ns max
ps typ
Aperture Jitter
25
25
25
DYNAMIC PERFORMANCE2
AD7899-1
fIN = 100 kHz, fS = 400 kSPS
Signal to (Noise + Distortion)
Ratio3 @ 25ꢀC
78
78
–84
78
78
–84
–86
78
77
–82
–85
dB min
dB min
dB max
dB max
TMIN to TMAX
Total Harmonic Distortion3
Peak Harmonic or Spurious Noise3 –86
AD7899-2
Signal to (Noise + Distortion)
Ratio3 @ 25ꢀC
78
77
–82
dB min
dB min
dB max
dB max
TMIN to TMAX
Total Harmonic Distortion3
Peak Harmonic or Spurious Noise3 –82
AD7899-3
Signal to (Noise + Distortion)
Ratio3 @ 25ꢀC
78
77
–84
78
77
–84
–86
dB min
dB min
dB max
dB max
TMIN to TMAX
Total Harmonic Distortion3
Peak Harmonic or Spurious Noise3 –86
Intermodulation Distortion3
fa = 49 kHz, fb = 50 kHz
2nd Order Terms
3rd Order Terms
–89
–89
–89
–89
–89
–89
dB typ
dB typ
DC ACCURACY
Resolution
14
2
1
14
1.5
1
14
2
1
Bits
LSB max
LSB max
Relative Accuracy (INL)3
Differential Nonlinearity (DNL)3
AD7899-1
No Missing Codes Guaranteed
Input Voltage Range
Input Current
5, 10
0.8, 0.8
10
10
12
5, 10
0.8, 0.8
8
8
8
Volts
mA max
LSB max
LSB max
LSB max
VIN = –5 V and –10 V Respectively
Positive Gain Error3
Negative Gain Error3
Bipolar Zero Error
AD7899-2
12
12
12
Input Voltage Range
0 to 2.5
0 to 5
0.4, 800
14
Volts
Input Current
Positive Gain Error3
Offset Error3
µA max
LSB max
LSB max
VIN = 2.5 V, VIN = 5 V
10
AD7899-3
Input Voltage Range
Input Current
2.5
0.8
14
14
14
2.5
0.8
12
12
12
Volts
mA max
LSB max
LSB max
LSB max
VIN = –2.5 V
Positive Gain Error3
Negative Gain Error3
Bipolar Zero Error
REFERENCE INPUT/OUTPUT
VREF IN Input Voltage Range
VREF IN Input Capacitance4
2.375/2.625
2.375/2.625
2.375/2.625 VMIN/VMAX
2.5 V 5%
10
2.5
10
20
25
6
10
2.5
10
20
25
6
10
2.5
pF max
V nom
V
REF OUT Output Voltage
VREF OUT Error @ 25ꢀC
VREF OUT Error TMIN to TMAX
10
25
25
mV max
mV max
ppm/ꢀC typ
kΩ typ
V
REF OUT Temperature Coefficient
VREF OUT Output Impedance
6
See Reference Section
–2–
REV. A
ADI [ ADI ]
