AD7682/AD7689
SPECIFICATIONS
VDD = 2.5 V to 5.5 V, VIO = 2.3 V to VDD, V
REF
= VDD, all specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 2.
Parameter
RESOLUTION
ANALOG INPUT
Voltage Range
Absolute Input Voltage
Conditions/Comments
Min
16
AD7682B/AD7689B
Typ
Max
Unit
Bits
V
V
Analog Input CMRR
Leakage Current at 25°C
Input Impedance
THROUGHPUT
Conversion Rate
Full Bandwidth
Unipolar mode
Bipolar mode
Positive input, unipolar and bipolar modes
Negative or COM input, unipolar mode
Negative or COM input, bipolar mode
f
IN
= 250 kHz
Acquisition phase
0
−V
REF
/2
−0.1
−0.1
V
REF
/2 − 0.1
V
REF
/2
68
1
+V
REF
+V
REF
/2
V
REF
+ 0.1
+0.1
V
REF
/2 + 0.1
dB
nA
¼ Bandwidth
Transient Response
ACCURACY
No Missing Codes
Integral Linearity Error
Differential Linearity Error
Transition Noise
Gain Error
Gain Error Match
Gain Error Temperature Drift
Offset Error
Offset Error Match
Offset Error Temperature Drift
Power Supply Sensitivity
VDD = 4.5 V to 5.5 V
VDD = 2.7 V to 4.5 V
VDD = 2.3 V to 2.7 V
VDD = 4.5 V to 5.5 V
VDD = 2.7 V to 4.5 V
VDD = 2.3 V to 2.7 V
Full-scale step, full bandwidth
Full-scale step, ¼ bandwidth
0
0
0
0
0
0
250
200
190
60
50
47
1.8
14.5
kSPS
kSPS
kSPS
kSPS
kSPS
kSPS
μs
μs
Bits
LSB
LSB
LSB
LSB
LSB
ppm/°C
LSB
LSB
ppm/°C
LSB
16
−1.5
−1
REF = VDD = 5 V
−30
−2
−2
VDD = 5 V
±
5%
±0.5
±0.25
0.5
±2
±0.5
±1
±2
±0.5
±1
±1.5
+1.5
+1.5
+30
+2
+2
Rev. 0 | Page 3 of 28
AD [ ANALOG DEVICES ]
