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AD8237ARMZ-R7 Datasheet(PDF) 6 Page - Analog Devices

Part # AD8237ARMZ-R7
Description  Micropower, Zero Drift, True Rail-to-Rail Instrumentation Amplifier
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD8237ARMZ-R7 Datasheet(HTML) 6 Page - Analog Devices

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Data Sheet
AD8237
Rev. 0 | Page 5 of 28
+VS = 1.8 V, −VS = 0 V, VREF = 0.9 V, VCM = 0.9 V, TA = 25°C, G = 1 to 1000, RL = 10 kΩ to ground, specifications referred to input, unless
otherwise noted.
Table 3.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
COMMON-MODE REJECTION RATIO (CMRR)
V
CM = 0.2 V to 1.6 V
CMRR at DC
G = 1, G = 10
100
120
dB
G = 100, G = 1000
114
140
dB
Over Temperature (G = 1)
T
A = −40°C to +125°C
94
dB
CMRR at 1 kHz
80
dB
NOISE
Voltage Noise
Spectral Density
f = 1 kHz, V
DIFF ≤ 100 mV
68
nV/√Hz
Peak to Peak
f = 0.1 Hz to 10 Hz, V
DIFF ≤ 100 mV
1.5
µV p-p
Current Noise
Spectral Density
f = 1 kHz
70
fA/√Hz
Peak to Peak
f = 0.1 Hz to 10 Hz
3
pA p-p
VOLTAGE OFFSET
Offset
25
75
µV
Average Temperature Coefficient
T
A = −40°C to +125°C
0.3
µV/°C
Offset RTI vs. Supply (PSR)
100
dB
INPUTS1
Valid for REF and FB pair, as well as +IN and −IN
Input Bias Current
T
A = +25°C
250
650
pA
Over Temperature
T
A = −40°C to +125°C
1
nA
Average Temperature Coefficient
0.5
pA/°C
Input Offset Current
T
A = +25°C
250
650
pA
Over Temperature
T
A = −40°C to +125°C
1
nA
Average Temperature Coefficient
0.5
pA/°C
Input Impedance
Differential
100||5
MΩ||pF
Common Mode
800||10
MΩ||pF
Differential Input Operating Voltage
T
A = −40°C to +125°C
± 0.75
V
Input Operating Voltage (+IN, −IN, REF, or FB)
T
A = +25°C
−V
S − 0.3
+V
S + 0.3
V
T
A = −40°C to +125°C
−V
S − 0.2
+V
S + 0.2
V
DYNAMIC RESPONSE
Small Signal Bandwidth
−3 dB
Low Bandwidth Mode
Pin 1 connected to −V
S
G = 1
200
kHz
G = 10
20
kHz
G = 100
2
kHz
G = 1000
0.2
kHz
High Bandwidth Mode
Pin 1 connected to +V
S
G = 10
100
kHz
G = 100
10
kHz
G = 1000
1
kHz
Slew Rate
Low Bandwidth Mode
0.05
V/µs
High Bandwidth Mode
0.15
V/µs
EMI Filter Frequency
6
MHz


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