ISL28233_10 Datasheet, PDF (1/23 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 an excellent general purpose
op amp 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 and 8 Ld SOIC
packages. The ISL28433 is available in 14 Ld TSSOP,
14 Ld SOIC and 14 Ld 3x4mm TDFN packages. All
devices operate over the temperature range of -40°C to
+125°C.
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
V_OS vs Temperature
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
4
3
2
1
0
-1
-2
-3
-4
-50 -25
0
25
50
75
TEMPERATURE (°C)
100 125
August 25, 2010
FN7692.0
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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