AD7864 Analog Devices, AD7864 Datasheet - Page 3

• Manufacturer Part Number: AD7864
• Description: High Speed, Low Power, 4-channel Simultaneous Sampling, 12-Bit ADC
• Manufacturer: Analog Devices

Specifications of AD7864

• Resolution (bits): 12bit
• # Chan: 4
• Sample Rate: 520kSPS
• Interface: Par
• Analog Input Type: SE-Bip,SE-Uni
• Ain Range: Bip 10V,Bip 2.5V,Bip 5.0V,Uni 2.5V,Uni 5.0V
• Adc Architecture: SAR
• Pkg Type: QFP

SPECIFICATIONS
V
Table 1.
Parameter
SAMPLE AND HOLD
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUTS
DD
−3 dB Full Power Bandwidth
Aperture Delay
Aperture Jitter
Aperture Delay Matching
Signal-to-(Noise + Distortion) Ratio
Total Harmonic Distortion
Peak Harmonic or Spurious Noise
Intermodulation Distortion
Channel-to-Channel Isolation
Resolution
Relative Accuracy
Differential Nonlinearity
AD7864-1
AD7864-3
AD7864-2
AD7864-1
AD7864-3
= 5 V ± 5%, AGND = DGND = 0 V, V
@ 25°C
T
Second-Order Terms
Third-Order Terms
Positive Gain Error
Positive Gain Error Match
Negative Gain Error
Negative Gain Error Match
Bipolar Zero Error
Bipolar Zero Error Match
Positive Gain Error
Positive Gain Error Match
Negative Gain Error
Negative Gain Error Match
Bipolar Zero Error
Bipolar Zero Error Match
Positive Gain Error
Positive Gain Error Match
Unipolar Offset Error
Unipolar Offset Error Match
Input Voltage Range
Input Resistance
Input Voltage Range
Input Resistance
MIN
to T
MAX
3
3
3
3
3
3
2
3
3
3
3
3
3
3
3
3
3
3
A Version
3
20
50
4
70
70
−80
−80
−80
−80
−80
12
±1
±0.9
±3
+3
±3
+3
±4
+2
±3
2
±3
2
±3
2
±3
3
±3
2
±5, ±10
9, 18
±2.5
4.5
REF
= internal, clock = internal; all specifications T
1
20
72
−80
−80
±1/2
±3
±2
B Version
3
50
4
70
−80
−80
−80
12
±0.9
±3
±3
±3
±3
±5, ±10
9, 18
±2.5
4.5
Rev. D | Page 3 of 28
Unit
MHz typ
ns max
ps max
ns max
dB min
dB min
dB max
dB max
dB typ
dB typ
dB max
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
V
kΩ min
V
kΩ min
Test Conditions/Comments
f
fa = 49 kHz, fb = 50 kHz
f
Any channel
No missing codes
IN
IN
MIN
= 100.0 kHz, f
= 50 kHz sine wave
to T
MAX
, unless otherwise noted.
S
= 500 kSPS
AD7864