OPA330AIDCKT

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1. Description

The OPA330AIDCKT series of CMOS operational amplifiers offer precision performance at a very competitive price. These devices are members of the Zero-Drift family of amplifiers which use a proprietary autocalibration technique to simultaneously provide low offset voltage (50-μV maximum) and near-zero drift over time and temperature at only 35 μA (maximum) of quiescent current. The OPA330 family features railto-rail input and output in addition to near-flat 1/f noise, making this amplifier ideal for many applications and much easier to design into a system. These devices are optimized for low-voltage operation as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V).The OPA330 (single version) is available in the 5-pin DSBGA, 5-pin SC70, 5-pin SOT-23, and 8-pin SOIC packages. The OPA2330 (dual version) is offered in 3 mm × 3 mm, 8-pin SON, 8-pin VSSOP, and 8-pin SOIC packages. The OPA4330 is offered in the standard 14-pin SOIC and 14-pin TSSOP packages, as well as in the space-saving 14-pin VQFN package. All versions are specified for operation from –40°C to 125°C.

2. Features

    1. Unmatched Price Performance

    2. Low Offset Voltage: 50 µV (Maximum)

    3. Zero Drift: 0.25 µV/°C (Maximum)

    4. Low Noise: 1.1 µVPP, 0.1 Hz to 10 Hz

    5. Quiescent Current: 35 µA (Maximum)

    6. Supply Voltage: 1.8 V to 5.5 V

    7. Rail-to-Rail Input and Output

    8. Internal EMI Filtering

    9. microSize Packages: DSBGA, SC70, VQFN

3. Applications

    1. Battery-Powered Instruments

    2. Temperature Measurements

    3. Transducer Applications

    4. Electronic Scales

    5. Medical Instrumentation

    6. Handheld Test Equipment

    7. Current Sense

4. Pin Configurations and Functions

5. Pin Functions

6. Functional Block Diagram

7. Bidirectional, Low-Side Current Sense

8. Packaging Information

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