Change to Figure 27 ....................................................................... 11
7/2016—Revision 0: Initial Version
Rev. A | Page 2 of 15
Data Sheet
SPECIFICATIONS
AD8209A
Operating temperature (T
OPR
) = −40°C to +125°C, T
A
= 25°C, V
S
= 5 V, R
L
= 25 kΩ (R
L
is the output load resistor), unless otherwise noted.
Table 1.
Parameter
SYSTEM GAIN
Initial
Error vs. Temperature
Gain Drift
VOLTAGE OFFSET
Initial Input Offset (Referred to
Input (RTI))
Input Offset (RTI) over
Temperature
Voltage Offset vs. Temperature
INPUT
Input Impedance
Differential
Common Mode
V
CM
(Continuous)
CMRR
1
PREAMPLIFIER (A1)
Gain
Gain Error
Output Voltage Range
Output Resistance
OUTPUT BUFFER (A2)
Gain
Gain Error
Output Voltage Range
3, 4
Output Voltage Range
5
Input Bias Current
Output Resistance
DYNAMIC RESPONSE
System Bandwidth
Slew Rate
NOISE
0.1 Hz to 10 Hz
Spectral Density, 1 kHz (RTI)
POWER SUPPLY
Operating Range
Quiescent Current
Quiescent Current vs. Temperature
Power Supply Rejection Ratio
(PSRR)
TEMPERATURE RANGE
1
2
Test Conditions/Comments
Min
Typ
14
Max
Unit
V/V
%
ppm/°C
mV
mV
µV/°C
0.075 V ≤ V
OUT
≤ (V
S
− 0.1 V), dc, T
OPR
T
OPR
Input common-mode voltage (V
CM
) = 0.15 V, at T
A
V
CM
= 0 V, T
OPR
V
CM
= 0 V, T
OPR
−20
−5
±1
±0.15
±15
±2
±4
+20
V
CM
= −2 V to +50 V, dc
f = dc to 10 kHz,
2
T
OPR
360
180
−2
80
80
400
200
100
440
220
+50
kΩ
kΩ
V
dB
dB
V/V
%
V
kΩ
V/V
%
V
V
nA
Ω
kHz
V/µs
µV p-p
nV/√Hz
7
0.0375 V ≤ V
OUT
≤ (V
S
− 0.1 V), dc, T
OPR
−0.3
0.025
97
+0.3
V
S
− 0.1
103
100
2
0.075 V ≤ V
OUT
≤ (V
S
− 0.1 V), dc, T
OPR
R
L
= 25 kΩ, differential input = 0 V, T
OPR
; Pin 3 (A1 output)
driving Pin 4 (A2 input)
Pin 4 (A2 input) driven with an external source
T
OPR
R
L
= 1 kΩ, frequency = dc
V
IN
= 0.01 V p-p, V
OUT
= 0.14 V p-p
V
IN
= 0.28 V, V
OUT
= 4 V step
−0.3
0.05
0.05
2
100
1
20
500
4.5
+0.3
V
S
− 0.1
V
S
− 0.1
50
5.5
1.6
2.7
Typical at T
A
V
OUT
= 0.1 V dc, V
S
= 5 V, T
OPR
V
S
= 4.5 V to 5.5 V, T
OPR
For specified performance at T
OPR
70
−40
80
+125
V
mA
mA
dB
°C
Source imbalance < 2 Ω.
The
AD8209A
preamplifier exceeds 80 dB CMRR at 10 kHz. However, because the output is available only via the 100 kΩ resistor, even a small amount of pin to pin
capacitance between the ±IN pins and the A1 and A2 pins can couple an input common-mode signal larger than the greatly attenuated preamplifier output. The
effect of pin to pin coupling can be neglected in all applications by using a filter capacitor from Pin 3 to GND.
3
The output voltage range of the
AD8209A
varies depending on the load resistance and temperature. For additional information on this specification, refer to Figure 12
and Figure 13.
4
The output voltage range of A2 assumes that Pin 3 (A1 output) and Pin 4 (A2 input) are shorted together. A 25 kΩ load resistor is used for testing.
5
The output voltage range of A2 assumes Pin 4 (A2 input) is driven with an external voltage source. A 25 kΩ load resistor is used for testing.
Rev. A | Page 3 of 15
AD8209A
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage
Continuous Input Voltage (Common Mode)
Differential Input Voltage
Reversed Supply Voltage Protection
ESD Human Body Model for Shunt-Based
Applications
1
Operating Temperature Range
Storage Temperature Range
Output Short-Circuit Duration
Lead Temperature Range (Soldering 10 sec)
1
Data Sheet
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
Rating
9V
−20 V to +70 V
±16 V
0.3 V
±8000 V
−40°C to +125°C
−65°C to +150°C
Indefinite
300°C
ESD CAUTION
Shunt-based applications have a low impedance shunt resistor between +IN
and −IN. See Figure 24 for an example of a shunt-based application.
