Datasheet

8
®
INA132
5
6
1
3
INA132
2
V
1
V
O
A
2
A
1
R
2
R
2
R
1
–In
V
2
+In
V
O
= (1 + 2R
2
/R
1
) (V
2
–V
1
)
The INA132 can be combined with op amps to form a complete instru-
mentation amplifier with specialized performance characteristics. Burr-
Brown offers many complete high performance IAs. Products with related
performances are shown at the right.
SIMILIAR COMPLETE
A
1
, A
2
FEATURE BURR-BROWN IA
OPA27 Low Noise INA103
OPA129 Ultra Low Bias Current (fA) INA116
OPA177 Low Offset Drift, Low Noise INA114,INA128
OPA2130 Low Power, FET-Input (pA) INA111
OPA2234 Single Supply, Precision,
Low Power INA122
(1)
, INA118
OPA2237 Single Supply, Low Power,
MSOP-8 INA122
(1)
, INA126
(1)
NOTE: (1) Available 1Q’97.
5
6
1
INA132
BUF634
2
3
V
O
R
L
–In
+In
(Low I
Q
mode)
BUF634 inside feedback 
loop contributes no error.
FIGURE 4. Low Power, High Output Current Precision
Difference Amplifier.
FIGURE 5. Pseudoground Generator.
5
6
2
(V+)/2
INA132
V+
1
7
4
V+
GroundGround
3
FIGURE 3. Precision Instrumentation Amplifier.
FIGURE 6. Differential Input Data Acquisition.
5
6
1
INA132
ADS7806
2
3
4
7
+5V
–In
12 Bits
Out
0V-4V
Input
+In
V
CM
= 0V to 8V
τ
S
= 45µs (4V Step to 0.01%)