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ORDERING GUIDE
Model
Temperature Range
Package Descriptions
Package Options
AD22050N
–40
°C to +125°C
Plastic DIP
N-8
AD22050R
–40
°C to +125°C
Plastic SOIC
SO-8
AD22050R-Reel
–40
°C to +125°C
Tape and Reel
SO-8*
*Quantities must be in increments of 2,500 pieces each.
AD22050–SPECIFICATIONS
REV. C
–2–
(TA = +25 C, VS = +5 V, and VCM = 0, RL = 10 k
unless otherwise noted)
Parameter
Test Conditions
Min
Typ
Max
Units
INPUTS (Pins 1 and 8)
+CMR
Positive Common-Mode Range
TA = TMIN to TMAX
+24
V
–CMR
Negative Common-Mode Range
TA = TMIN to +85°C
–1.0
V
CMRRLF
Common-Mode Rejection Ratio
f
≤ 10 Hz
80
90
dB
CMRRHF
Common-Mode Rejection Ratio
f = 10 kHz
60
75
dB
RINCM
Common-Mode Input Resistances
Pin 1 or Pin 8 to Pin 2
180
240
300
k
RMATCH
Matching of Resistances
±0.5
%
RINDIFF
Differential Input Resistance
Pin 1 to Pin 8
280
400
k
PREAMPLIFIER
GCL
Closed-Loop Gain1
9.7
10.0
10.3
VO
Output Voltage Range (Pin 3)
+0.01
+4.8
V
RO
Output Resistance
2
97
100
103
k
OUTPUT BUFFER
GCL
Closed-Loop Gain
1
RLOAD
≥ 10 k
1.94
2.0
2.06
VO
Output Voltage Range3
TA = TMIN to TMAX
+0.02
+4.8
V
RO
Output Resistance (Pin 5)
VO
≥ 0.1 V dc, I
O < 1 mA
2.0
OVERALL SYSTEM
G
Gain
1
VO
≥ 0.1 V dc
19.9
20.0
20.1
Over Temperature
TA = TMIN to TMAX
19.8
20.2
VOS
Input Offset Voltage4
–1
0.03
1
mV
Over Temperature
TA = TMIN to TMAX
–3
3
mV
OFS
Midscale Offset (Pin 7) Scaling
0.49
0.50
0.51
V/V
Input Resistance
Pin 7 to Pin 2
2.5
3.0
k
IOSC
Short-Circuit Output Current
TA = TMIN to TMAX
7
1125mA
BW–3 dB
–3 dB Bandwidth
VO = +1 V dc
30
kHz
SR
Slew Rate
0.2
V/
s
NSD
Noise Spectral Density3
f = 100 Hz to 10 kHz
0.2
V/√Hz
POWER SUPPLY
VS
Operating Range
TA = TMIN to TMAX
3.0
5
36
V
IS
Quiescent Supply Current5
TA = +25
°C, V
S = +5 V
200
500
A
TEMPERATURE RANGE
TOP
Operating Temperature Range
–40
+125
°C
NOTES
1Specified for default mode, i.e., with no external components. The overall gain is trimmed to 0.5%, while the individual gains of A1 and A2 may be subject to a
maximum
±3% tolerance. Note that the actual gain in a particular application can be modified by the use of external resistor networks.
2The actual output resistance of A1 is only a few ohms, but access to this output, via Pin 3, is always through the resistor R12 (see Figure 16) which is 100 k
,
trimmed to
± 3%.
3For V
CM ≤ 20 V. For VCM > 20 V, VOL 1 mV/V × VCM.
4Referred to the input (Pins 1 and 8).
5With V
DM = 0 V. Differential mode signals are referred to as V DM, while VCM refers to common-mode voltages—see the section Product Description and Figure 3.
All min and max specifications are guaranteed, although only those marked in boldface are tested on all production units at final test.
Specifications subject to change without notice.