ISL28133_11 Datasheet, PDF (1/20 Pages) Intersil Corporation – Single Micropower, Chopper Stabilized, RRIO Operational Amplifier

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 1.8V 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.
Related Literature
• AN1480 “ISL28133ISENS-EV1Z Evaluation Board Users
Guide”
• AN1499 “ISL28133EVAL1Z High Gain Evaluation Board
User’s Guide”
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 . . . . . . . . . . . . . . . . . . . . . . . . 1.8V 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
• Bidirectional Current Sense
• Temperature Measurement
• Medical Equipment
• Electronic Weigh Scales
I-SENSE+
0.1
4.99k
4.99k
3
5
+ _V+
499k
1
ISL28133
4 _- V-
2
499k
V_S
1.8V TO +5.5V
V_REF
V_SENSE
OUT
I-SENSE-
GND
BIDIRECTIONAL CURRENT SENSE AMPLIFIER
FIGURE 1. TYPICAL APPLICATION CIRCUIT
10
8
6
4
2
0
-2
-4
-6
-40
MAX
N = 67
MEDIAN
MIN
-20 0 20 40 60 80 100 120
TEMPERATURE (°C)
FIGURE 2. VOS vs TEMPERATURE
July 22, 2011
1
FN6560.5
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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