AD8207
Rev. 0 | Page 3 of 16
SPECIFICATIONS
TOPR = 40°C to +125°C, V+ = 5 V or 3.3 V, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
GAIN
Initial
20
V/V
Accuracy over Temperature
0.3
+0.3
%
TOPR
Gain vs. Temperature
15
0
ppm/°C
TOPR
VOLTAGE OFFSET
±100
μV
25°C
±400
μV
TOPR
Offset Drift
1
+1
μV/°C
TOPR
INPUT
Input Impedance
Differential
240
kΩ
Common Mode
126
kΩ
Input Voltage Range
4
+65
V
Common mode, continuous, V+ = 5 V, TOPR
4
+35
V
Common mode continuous, V+ = 3.3 V, TOPR
250
mV
Common-Mode Rejection (CMRR)
80
90
dB
TOPR, f = dc to 20 kHz
OUTPUT
Output Voltage Range
0.02
V+ 0.05
V
RL = 25 kΩ, TOPR
Output Resistance
2
Ω
DYNAMIC RESPONSE
Small-Signal 3 dB Bandwidth
150
kHz
TOPR
Slew Rate
1
V/μs
NOISE
20
μV p-p
Spectral Density, 1 kHz, (R
TI)10.6
μV/√Hz
OFFSET ADJUSTMENT
0.497
0.503
V/V
Divider to supplies, TOPR
±3
mV/V
Voltage applied to VREF1 and VREF2 in parallel,
TOPR
Output Offset Adjustment Range
0.02
V+ 0.05
V
TOPR
VREF Input Voltage Range5 0.0
V+
V
VREF Divider Resistor Values
100
kΩ
POWER SUPPLY
Operating Range
4.5
5.5
V
RANGE (Pin 4) connected to
GND63.3
4.5
V
RANGE (Pin 4) connected to
V+7Quiescent Current over Temperature
2.5
mA
VO = 0.1 V dc
Power Supply Rejection Ratio (PSRR)
80
dB
TEMPERATURE RANGE
For Specified Performance
40
+125
°C
1 RTI = referred to input.
2 Input voltage range = ±125 mV with half-scale offset. The input differential range also depends on the supply voltage. The maximum input differential range can be
calculated by V+/20.
3 The offset adjustment is ratiometric to the power supply when VREF1 and VREF2 are used as a divider between the supplies.
4 RTO = referred to output.
5 The reference pins should be driven with a low impedance voltage source to maintain the specified accuracy of the AD8207.
6 With a 4.5 V to 5.5 V supply, the RANGE pin should be tied low. In this mode, the common-mode range of the AD8207 is 4 V to +65 V.
7 With a 3.3 V to 4.5 V supply, the RANGE pin should be tied to V+. In this mode, the common-mode range of the AD8207 is 4 V to +35 V. If a 4.5 V supply is used, the
user can tie RANGE high or low depending on the common-mode range needed in the application.