AD7816-7818 Analog Devices, AD7816-7818 Datasheet - Page 3

• Manufacturer Part Number: AD7816-7818
• Description: Single- and 4-Channel/ 9 us/ 10-Bit ADCs with On-Chip Temperature Sensor
• Manufacturer: Analog Devices

AD7816/AD7818
Parameter
DYNAMIC PERFORMANCE (AD7818 Only)
DC ACCURACY (AD7818 Only)
TEMPERATURE SENSOR
ON-CHIP REFERENCE
CONVERSION RATE
POWER REQUIREMENTS
REV. A
REFERENCE INPUT
Signal to (Noise + Distortion) Ratio
Total Harmonic Distortion
Peak Harmonic or Spurious Noise
Intermodulation Distortion
Channel-to-Channel Isolation
Resolution
Minimum Resolution for Which
Relative Accuracy
Differential Nonlinearity
Gain Error
Offset Error
Measurement Error
Measurement Error
Temperature Resolution
REF
Input Impedance
Input Capacitance
Temperature Coefficient
Track/Hold Acquisition Time
Conversion Time
V
I
Auto Power-Down Mode
Power-Down
DD
DD
Second Order Terms
Third Order Terms
No Missing Codes Are Guaranteed
T
T
Temperature Sensor
Channel 1
Normal Operation
Using External Reference
Power-Down
10 SPS Throughput Rate
1 kSPS Throughput Rate
10 kSPS Throughput Rate
Ambient Temperature +25 C
Ambient Temperature +25 C
MIN
MIN
IN
Input Voltage Range
to T
to T
2
2
MAX
MAX
2
3, 4
5
(AD7816 Only)
2
3
1
2
2
3
4
2
6
–SPECIFICATIONS
2
2
A Version
57
–65
–67
–67
–67
–80
10
10
1/4
2.625
2.375
50
10
30
400
27
9
+5.5
+2.7
2
1.75
2
4
40
400
3
1
1
10
4
2
3
2
3
–3–
Units
dB min
dB max
dB typ
dB typ
dB typ
dB typ
Bits
Bits
LSB max
LSB max
LSB max
LSB max
V max
V min
k min
pF max
ppm/ C typ
ns max
V max
V min
mA max
mA max
C max
C max
C max
C max
C/LSB
s max
s max
A max
W typ
W typ
W typ
W max
1
(V
otherwise noted)
DD
= +2.7 V to +5.5 V, GND = 0 V, REF
Test Conditions/Comments
Sample Rate = 100 kSPS, Any
Channel, f
–75 dB typ
–75 dB typ
fa = 19.9 kHz, fb = 20.1 kHz
f
Any Channel
External Reference V
On-Chip Reference
2.5 V + 5%
2.5 V – 5%
Nominal 2.5 V
Source Impedance < 10
(AD7818 Only)
For Specified Performance
Logic Inputs = 0 V or V
1.3 mA typ
2.5 V External Reference Connected
500 nA typ
V
See Power vs. Throughput Section for
Description of Power Dissipation in
Auto Power-Down Mode
Typically 0.15 W
IN
DD
= 20 kHz
= 3 V
IN
AD7816/AD7817/AD7818
= 20 kHz
REF
DD
= 2.5 V
IN
= +2.5 V unless