AD7829 AD [Analog Devices], AD7829 Datasheet - Page 2

• Manufacturer Part Number: AD7829
• Description: 3 V/5 V, 2 MSPS, 8-Bit, 1-, 4-, 8-Channel Sampling ADCs
• Manufacturer: AD [Analog Devices]

AD7822/AD7825/AD7829–SPECIFICATIONS
V
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUTS
REFERENCE INPUT
ON-CHIP REFERENCE
LOGIC INPUTS
LOGIC OUTPUTS
REF IN/OUT
Signal to (Noise + Distortion) Ratio
Total Harmonic Distortion
Peak Harmonic or Spurious Noise
Intermodulation Distortion
Channel-to-Channel Isolation
Resolution
Minimum Resolution for Which
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
Gain Error
Gain Error Match
Offset Error
Offset Error Match
V
V
V
V
V
V
Input Current
Reference Error
Temperature Coefficient
Input High Voltage, V
Input Low Voltage, V
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Capacitance, C
Output High Voltage, V
Output Low Voltage, V
High Impedance Leakage Current
High Impedance Capacitance
DD
DD
IN
IN
MID
REF IN/OUT
2nd Order Terms
3rd Order Terms
No Missing Codes Are Guaranteed
V
V
V
V
IN1
MID
IN1
MID
Input Leakage Current
Input Capacitance
= 5 V ± 10%
= 3 V ± 10%
Input Impedance
= 2.5 V. All specifications –40 C to +85 C unless otherwise noted.)
to V
to V
Input Voltage
Input Voltage
1
IN8
IN8
Input Voltage Range
1
Input Voltage
Input Voltage
IN
1
2
1
IN
INL
INL
INH
INH
OL
OH
1
1
1
1
1
1
1
Version B
48
–55
–55
–65
–65
–70
8
8
± 0.75
± 0.75
± 2
± 0.1
± 1
± 0.1
V
0
V
1.25
V
0
V
1
± 1
15
6
2.55
2.45
1
100
± 50
50
2.4
0.8
2
0.4
± 1
10
4
2.4
0.4
0.2
± 1
10
DD
DD
DD
DD
– 1.25
– 1
Unit
dB min
dB max
dB max
dB typ
dB typ
dB typ
Bits
Bits
LSB max
LSB max
LSB max
LSB typ
LSB max
LSB typ
V max
V min
V max
V min
V max
V min
V max
V min
µA max
pF max
kΩ typ
V max
V min
µA typ
µA max
mV max
ppm/°C typ
V min
V max
V min
V max
µA max
pF max
V min
V min
V max
V max
µA max
pF max
–2–
Test Condition/Comment
f
fa = 27.3 kHz, fb = 28.3 kHz
f
See Analog Input Section
Input Voltage Span = 2.5 V
Default V
Input Voltage Span = 2 V
Default V
2.5 V + 2%
2.5 V – 2%
Nominal 2.5 V
V
V
V
V
Typically 10 nA, V
I
V
V
I
V
V
IN
IN
SOURCE
SINK
DD
DD
DD
DD
DD
DD
DD
DD
(V
= 30 kHz. f
= 20 kHz
= 5 V ± 10%
= 5 V ± 10%
= 3 V ± 10%
= 3 V ± 10%
= 5 V ± 10%
= 3 V ± 10%
= 5 V ± 10%
= 3 V ± 10%
DD
= 200 µA
= 3 V
= 200 µA
MID
MID
= 1.25 V
= 1 V
SAMPLE
10%, V
IN
= 0 V to V
= 2 MHz
DD
= 5 V
DD
10%, GND = 0 V,
REV. B