Datasheet

AD8293G80/AD8293G160
Rev. 0 | Page 3 of 16
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
V
CC
= 5.0 V, V
CM
= −0 V, V
REF
= 3.3 V, V
IN
= V
INP
− V
INN
, T
A
= 25°C, tested at ADC OUT, unless otherwise noted. Temperature
specifications guaranteed by characterization.
Table 2. A Grade
AD8293G80A AD8293G160A
Parameter Symbol Conditions Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION CMR
V
CM
= 0 V to 3.3 V,
−40°C ≤ T
A
≤ +85°C
94 140 94 140 dB
NOISE PERFORMANCE
Voltage Noise e
n p-p
f = 0.01 Hz to 10 Hz 0.7 0.7 μV p-p
Voltage Noise Density e
n
f = 1 kHz 35 35 nV/√Hz
INPUT CHARACTERISTICS
Input Offset Voltage V
OS
9 50 9 50 μV
vs. Temperature ΔV
OS
/ΔT −40°C ≤ T
A
≤ +85°C 0.02 0.3 0.02 0.3 μV/°C
Input Bias Current I
B
−40°C ≤ T
A
≤ +85°C 0.4 2 0.4 2 nA
Input Offset Current I
OS
4 4 nA
Input Operating Impedance
Differential 50||1 50||1 MΩ||pF
Common Mode 10||10 10||10 GΩ||pF
Input Voltage Range 0 V
CC
− 1.7 0 V
CC
− 1.7 V
DYNAMIC RESPONSE
Small Signal Bandwidth
1
BW Filter limited 500 500 Hz
Slew Rate SR Filter limited Filter limited
Settling Time
2
t
s
0.1% 500 Hz filter, V
O
= 2 V step 1.9 1.9 ms
0.01% 2.4 2.4 ms
Internal Clock Frequency 60 60 kHz
GAIN 80 160
Gain Error V
O
= 0.075 V to 4.925 V 0.3 1 0.3 1 %
Gain Drift −40°C ≤ T
A
≤ +85°C 5 25 5 25 ppm/°C
Nonlinearity V
O
= 0.075 V to 4.925 V 0.003 0.03 0.003 0.03 % FS
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
V
CC
−
0.075
V
CC
−
0.075
V
Output Voltage Low V
OL
0.075 0.075 V
Short-Circuit Current I
SC
±35 ±35 mA
REFERENCE CHARACTERISTICS
V
REF
Range 0.8 V
CC
− 0.8 0.8 V
CC
− 0.8 V
REF Pin Current I
REF
0.01 1 0.01 1 nA
POWER SUPPLY
Operating Range 1.8 5.5 1.8 5.5 V
Power Supply Rejection PSR V
CC
= 1.8 V to 5.5 V, V
CM
= 0 V 94 120 94 120 dB
Supply Current I
SY
I
O
= 0 mA, V
IN
= 0 V 1.0 1.3 1.0 1.3 mA
−40°C ≤ T
A
≤ +85°C 1.5 1.5 mA
TEMPERATURE RANGE
Specified Range −40 +85 −40 +85 °C
1
Higher bandwidths result in higher noise.
2
Settling time is determined by filter setting.