ISL28233_1012 Datasheet, PDF (1/25 Pages) Intersil Corporation – Dual and Quad Micropower Chopper Stabilized, RRIO Operational Amplifiers

Dual and Quad Micropower Chopper Stabilized, RRIO
Operational Amplifiers
ISL28233, ISL28433
The ISL28233 and ISL28433 are dual and quad micropower,
chopper stabilized operational amplifiers that are optimized for
single and dual supply operation from 1.65V to 6.0V and
±0.825V to ±3.0V. Their low supply current of 18µA and wide
input range enable the ISL28233, ISL28433 to be excellent
general purpose op amps for a wide range of applications. The
ISL28233 and ISL28433 are ideal for handheld devices that
operate off 2 AA or single Li-ion batteries.
The ISL28233 is available in 8 Ld MSOP, 8 Ld SOIC and 8 Ld DFN
packages. The ISL28433 is available in 14 Ld TSSOP, 14 Ld SOIC
and 14 Ld 3mmx4mm TDFN packages. All devices operate over
the temperature range of -40°C to +125°C.
Related Literature
• See AN1596, “ISL28233SOICEVAL1Z Evaluation Board User’s
Guide”
• See AN1575, “ISL28433SOICEVAL1Z, ISL28433TSSOPEVAL1Z
Evaluation Board User’s Guide”
Features
• Low Input Offset Voltage . . . . . . . . . . . . . . . . . . . . . . 6µV, Max.
• Low Offset Drift . . . . . . . . . . . . . . . . . . . . . . . 0.05µV/°C, Max.
• Quiescent Current (Per Amplifier) . . . . . . . . . . . . . .18µA, Typ.
• Single Supply Range . . . . . . . . . . . . . . . . . . . +1.65V to +6.0V
• Dual Supply Range. . . . . . . . . . . . . . . . . . . . ±0.825V to ±3.0V
• Low Noise (0.01Hz to 10Hz) . . . . . . . . . . . . . . . . . 1.0µV_P-P, Typ.
• Rail-to-Rail Inputs and Output
• Input Bias Current . . . . . . . . . . . . . . . . . . . . . . . . .180pA, Max.
• Operating Temperature Range . . . . . . . . . . . .-40°C to +125°C
Applications
• Bi-Directional Current Sense
• Temperature Measurement
• Medical Equipment
• Electronic Weigh Scales
• Precision/Strain Gauge Sensor
• Precision Regulation
• Low Ohmic Current Sense
• High Gain Analog Front Ends
Typical Application
I-SENSE+
0.1
4.99k
4.99k
V₊
+1.65V TO +6.0V
499k
V_REF
+
V+
- ^V-
499k
V_SENSE
OUT
I-SENSE-
GND
BI-DIRECTIONAL CURRENT SENSE AMPLIFIER
V_OS vs Temperature
4
3
2
1
0
-1
-2
-3
-4
-50
-25
0
25
50
75
TEMPERATURE (°C)
100 125
December 15, 2010
1
FN7692.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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