AD7862 Analog Devices, AD7862 Datasheet - Page 2

• Manufacturer Part Number: AD7862
• Description: Simultaneous Sampling Dual 250 kSPS 12-Bit ADC
• Manufacturer: Analog Devices

Specifications of AD7862

• Resolution (bits): 12bit
• # Chan: 4
• Sample Rate: 250kSPS
• Interface: Par
• Analog Input Type: SE-Bip,SE-Uni
• Ain Range: Bip 10V,Bip 2.5V,Uni 2.5V
• Adc Architecture: SAR
• Pkg Type: DIP,SOIC,SOP

AD7862–SPECIFICATIONS
Parameter
SAMPLE AND HOLD
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUTS
REFERENCE INPUT/OUTPUT
LOGIC INPUTS
–3 dB Small Signal 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
Minimum Resolution for which
No Missing Codes are Guaranteed
Relative Accuracy
Differential Nonlinearity
Positive Gain Error
Positive Gain Error Match
AD7862-10
AD7862-3
AD7862-2
AD7862-10
AD7862-3
AD7862-2
REF IN Input Voltage Range
REF IN Input Capacitance
REF OUT Output Voltage
REF OUT Error @ +25 C
REF OUT Error T
REF OUT Temperature Coefficient
REF OUT Output Impedance
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Capacitance, C
@ +25 C
T
2nd Order Terms
3rd Order Terms
Negative Gain Error
Bipolar Zero Error
Bipolar Zero Error Match
Negative Gain Error
Bipolar Zero Error
Bipolar Zero Error Match
Unipolar Offset Error
Unipolar Offset Error Match
Input Voltage Range
Input Resistance
Input Voltage Range
Input Resistance
Input Voltage Range
Input Current
MIN
to T
MAX
IN
3
MIN
3
IN
INL
INH
3
3
to T
4
3
3
3
3
4
MAX
2
3
3
3
A
Version
3
20
100
200
70
70
–78
–85
–85
–85
–80
12
12
4
4
4
+4
4
24
6
+2.5
500
2.375/2.625 2.375/2.625 2.375/2.625
10
2.5
25
2
2.4
0.8
10
1
1
4
4
4
4
4
10
2.5
10
25
10
1
(V
unless otherwise noted.)
DD
B
Version
3
20
100
200
71
70
–78
–85
–85
–85
–80
12
12
3
3
3
+3
3.5
24
6
+2.5
500
10
2.5
25
2
2.4
0.8
10
= +5 V
1
1
3
3
3
3
3
10
2.5
10
25
10
–2–
5%, AGND = DGND = 0 V, REF = Internal. All Specifications T
S
Version
3
20
100
200
70
70
–78
–85
–80
12
12
4
4
4
4
24
6
500
10
2.5
25
2
2.4
0.8
10
–85
–85
+4
+2.5
1
1
4
4
4
4
4
10
2.5
10
25
10
Units
MHz typ
ns typ
ps typ
ps typ
dB min
dB min
dB max
dB typ
dB max
Bits
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
Volts
k min
Volts
k min
nA max
V min/V max 2.5 V
pF max
V nom
mV max
mV max
ppm/ C typ
k nom
V min
V max
pF max
dB typ
dB typ
LSB max
Volts
A max
Test Conditions/Comments
f
fa = 49 kHz, fb = 50 kHz
f
Any Channel
Typically 0.4 LSB
Input
Input
Input
V
V
IN
IN
DD
DD
= 100.0 kHz, f
= 100 kHz Sine Wave
= 5 V
= 5 V
5%
5%
5%
S
= 250 kSPS
MIN
REV. 0
to T
MAX