= −40°C to +125°C, V+ = 5 V or 3.3 V, unless otherwise noted.
Table 1.
Parameter
GAIN
Initial
Accuracy over Temperature
Gain vs. Temperature
VOLTAGE OFFSET
Offset Voltage (RTI)
1
Over Temperature (RTI)
1
Offset Drift
INPUT
Input Impedance
Differential
Common Mode
Input Voltage Range
Min
Typ
20
−0.3
−15
±100
−1
±400
+1
+0.3
0
Max
Unit
V/V
%
ppm/°C
μV
μV
μV/°C
Test Conditions/Comments
T
OPR
T
OPR
25°C
T
OPR
T
OPR
240
126
−4
−4
80
0.02
2
150
1
20
0.6
0.497
0.503
±3
V+ − 0.05
V+
100
4.5
3.3
80
−40
+125
5.5
4.5
2.5
250
90
V+ − 0.05
+65
+35
Common-Mode Rejection (CMRR)
OUTPUT
Output Voltage Range
Output Resistance
DYNAMIC RESPONSE
Small-Signal −3 dB Bandwidth
Slew Rate
NOISE
0.1 Hz to 10 Hz, (RTI)
1
Spectral Density, 1 kHz, (RTI)
1
OFFSET ADJUSTMENT
Ratiometric Accuracy
3
Accuracy (RTO)
4
Output Offset Adjustment Range
V
REF
Input Voltage Range
5
VREF Divider Resistor Values
POWER SUPPLY
Operating Range
Quiescent Current over Temperature
Power Supply Rejection Ratio (PSRR)
TEMPERATURE RANGE
For Specified Performance
1
2
kΩ
kΩ
V
V
mV
dB
V
Ω
kHz
V/μs
μV p-p
μV/√Hz
V/V
mV/V
V
V
kΩ
V
V
mA
dB
°C
Common mode, continuous, V+ = 5 V, T
OPR
Common mode continuous, V+ = 3.3 V, T
OPR
Differential
2
, V+ = 5 V
T
OPR
, f = dc to 20 kHz
R
L
= 25 kΩ, T
OPR
T
OPR
0.02
0.0
Divider to supplies, T
OPR
Voltage applied to V
REF
1 and V
REF
2 in parallel,
T
OPR
T
OPR
RANGE (Pin 4) connected to GND
6
RANGE (Pin 4) connected to V+
7
V
O
= 0.1 V dc
RTI = referred to input.
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 V
REF
1 and V
REF
2 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.
Rev. 0 | Page 3 of 16
AD8207
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage
Continuous Input Voltage
Input Transient Survival
Differential Input Voltage
Reverse Supply Voltage
Operating Temperature Range
Storage Temperature Range
Output Short-Circuit Duration
Rating
12.5 V
−25 V to +75 V
−30 V to +80 V
−25 V to +75 V
0.3 V
−40°C to +125°C
−65°C to +150°C
Indefinite
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or
any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
Rev. 0 | Page 4 of 16
AD8207
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
–IN
1
GND
2
V
REF
2
3
RANGE
4
8
+IN
V
REF
1
09160-002
AD8207
7
6
V+
TOP VIEW
(Not to Scale)
5
OUT
Figure 2. Pin Configuration
Table 3. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
−IN
GND
V
REF
2
RANGE
OUT
V+
V
REF
1
+IN
Description
Negative Input.
Ground Pin.
Reference Input.
Range Pin. This pin switches between 4.5 V to 5.5 V and 3.3 V to 4.5 V supply operation.
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GD32 MCU
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