AD7827 Analog Devices, AD7827 Datasheet - Page 2

• Manufacturer Part Number: AD7827
• Description: 3/5V, 1 MSPS, 8-Bit, Serial Interface Sampling ADC
• Manufacturer: Analog Devices

Specifications of AD7827

• Resolution (bits): 8bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Ser
• Analog Input Type: SE-Uni
• Ain Range: Uni 2.0V,Uni 2.5V
• Adc Architecture: Pipelined
• Pkg Type: DIP,SOIC

AD7827–SPECIFICATIONS
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUT
REFERENCE INPUT
LOGIC INPUTS
LOGIC OUTPUTS
CONVERSION RATE
Signal-to-(Noise + Distortion) Ratio
Total Harmonic Distortion
Peak Harmonic or Spurious Noise
Intermodulation Distortion
Resolution
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
Offset Error
Gain Error
Minimum Resolution for Which
Input Voltage Range
Input Leakage Current
Input Capacitance
V
Input Current
CONVST, SCLK
D
High Impedance Leakage Current
High Impedance Capacitance
Conversion Time
Track/Hold Acquisition Time
REFIN
OUT
2nd Order Terms
3rd Order Terms
No Missing Codes are Guaranteed
V
V
V
V
Input Current, I
Input Capacitance
V
V
INH,
INL,
INH,
INL,
OH,
OL,
, RFS
/
REFOUT
Output Low Voltage
Output High Voltage
Input Low Voltage
Input Low Voltage
Input High Voltage
Input High Voltage
1
1
Input Voltage Range
2
INH
1
1
1
1
1
1
Version B
48
–55
–55
–65
–65
8
8
0
2.5
0
2
10
2.55
2.45
2.4
0.8
2.0
0.4
10
4
2.4
0.4
0.2
15
420
200
0.5
0.5
1.5
2
1
1
50
1
1
(V
specifications –40 C to +105 C unless otherwise noted.)
DD
= +3 V
–2–
Units
dB min
dB max
dB max
dB typ
dB typ
Bits
LSB max
LSB max
LSB max
LSB max
Bits
V min
V max
V min
V max
pF max
V max
V min
V min
V max
V min
V max
pF max
V max
V min
V max
V min
pF max
ns max
ns max
10%, V
A max
A typ
A max
A max
A max
DD
= +5 V
10%, GND = 0 V, V
Test Conditions/Comments
f
fa = 29.1 kHz; fb = 29.9 kHz
V
V
V
V
V
V
Typically 10 nA, V
I
V
V
I
V
V
IN
SOURCE
SINK
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
= 30 kHz; f
= 5 V
= 3 V
= 5 V
= 5 V
= 3 V
= 3 V
= 5 V
= 3 V
= 5 V
= 3 V
= 200 A
= 200 A
REFIN/REFOUT
10%
10%
10%
10%
10%
10%
10%
10%
SAMPLE
IN
= 0 V or V
= 1 MHz
= 2.5 V. All
DD
REV. 0