Datasheet

10
®
INA133, INA2133
TYPICAL APPLICATIONS
5
6
1
3
INA133
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
)
FIGURE 3. Precision Instrumentation Amplifier.
SIMILAR COMPLETE
A
1
, A
2
FEATURE BURR-BROWN IA
OPA2227 Low Noise INA103
OPA129 Ultra Low Bias Current (fA) INA116
OPA2277 Low Offset Drift, Low Noise INA114, INA128
OPA2130 Low Power, FET-Input (pA) INA121
OPA2234 Single Supply, Precision, Low Power INA122, INA118
OPA2237 Single Supply, Low Power, MSOP-8 INA122, INA126
The INA133 can be combined with op amps to form a complete instrumenta-
tion amplifier with specialized performance characteristics. Burr-Brown offers
many complete high performance IAs. Products with related performances
are shown at the right in the table below.
100Ω
(1)
1%
V–
5
6
3
INA133
2
100Ω
(1)
1%
1
V
0
0 to 2V
I
IN
0 to 20mA
NOTE: (1) Input series resistors should be less than
250Ω (1% max mismatch) to maintain excellent CMR.
With 100Ω resistors, gain error is increased to 0.5%.
FIGURE 4. Current Receiver with Compliance to Rails.
5
6
2
V
O
= (V+)/2
INA133
V+
1
7
4
V+
CommonCommon
3
5
6
V
O
= –V
2
INA133
Gain Error = 0.05% maximum
Nonlinearity = 0.001% maximum
Gain Drift = 1ppm/°C
2
V
2
13
FIGURE 5. Pseudoground Generator.
FIGURE 6. Precision Unity-Gain Inverting Amplifier.