ISL28133 Datasheet, PDF (1/20 Pages) Intersil Corporation – Single, Dual, and Quad Micropower, Zero-Drift, RRIO Operational Amplifiers

Single Micropower, Chopper Stabilized, RRIO
Operational Amplifier
ISL28133
The ISL28133 is a single micropower, chopper stabilized
operational amplifier that is optimized for single supply
operation from 1.65V to 5.5V. Its low supply current of
18µA and wide input range enable the ISL28133 to be an
excellent general purpose op amp for a range of
applications. The ISL28133 is ideal for handheld devices
that operates off 2 AA or single Li-ion batteries.
The ISL28133 is available in the 5 Ld SOT-23, the 5 Ld
SC70 and the 6 Ld 1.6mmx1.6mm µTDFN packages. All
devices operates over the extended temperature range
of -40°C to +125°C.
Features
• Low Input Offset Voltage . . . . . . . . . . . 8µV, Max.
• Low Offset TC . . . . . . . . . . . . . 0.075µV/°C, Max
• Input Bias Current . . . . . . . . . . . . . 300pA, Max.
• Quiescent Current . . . . . . . . . . . . . . . 18µA, Typ.
• Wide Supply Range. . . . . . . . . . . . 1.65V to 5.5V
• Low Noise (0.01Hz to 10Hz) . . . . . . . 1.1µV_P-P, Typ.
• Rail-to-Rail Inputs and Output
• Operating Temperature Range . . -40°C to +125°C
Applications*(see page 17)
• Bidirectional Current Sense
• Temperature Measurement
• Medical Equipment
• Electronic Weigh Scales
Related Literature
• AN1480 “ISL28133ISENS-EV1Z Evaluation Board
Users Guide”
• AN1499 “ISL28133EVAL1Z High Gain Evaluation
Board User’s Guide”
Typical Application
V_OS vs Temperature
I-SENSE+
0.1
V_S
1.65V TO +5.5V
4.99k
4.99k
499k
3
5
+ _V+
1
ISL28133
4 V-
-
2
499k
V_REF
V_SENSE
OUT
I-SENSE-
GND
BIDIRECTIONAL CURRENT SENSE AMPLIFIER
10
N = 67
8
6
MAX
4
2
MEDIAN
0
-2
-4
-6
-40 -20
MIN
0 20 40 60 80
TEMPERATURE (°C)
100 120
August 12, 2010
FN6560.3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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