OPA145
OPA145 is 5.5-MHz JFET Operational Amplifiers manufactured by Texas Instruments.
Features
- Best bandwidth and slew-rate-to-power ratio:
- gain-bandwidth product: 5.5 MHz
- Slew rate: 20 V/μs
- Low supply current: 475 µA (maximum)
- High precision:
- Very low offset: 150 μV (maximum)
- Very low offset drift: 1 μV/°C (maximum)
- Low input bias current: 2 p A
- Excellent noise performance:
- Very low voltage noise: 7 n V/√Hz
- Very low current noise: 0.8 f A/√ Hz
- Input-voltage range includes V- supply
- Single-supply operation: 4.5 V to 36 V
- Dual-supply operation: ±2.25 V to ±18 V
2 Applications
- Semiconductor test
- Lab and field instrumentation
- Source measurement unit (SMU)
- Weigh scale
- Intra-DC interconnect (metro)
- Merchant network and server PSU
- DC power supply, ac source, electronic load
- Data acquisition (DAQ)
3 Description
The OPA145 and OPA2145 (OPAx145) devices are part of a family of low-power JFET input amplifier that have excellent drift, low current noise, and picoampere input bias current. These features make the OPAx145 an excellent choice for amplifying small signals from high-impedance sensors.
The rail-to-rail output swing interfaces to modern, single-supply, precision, analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). In addition, the input range that includes V- allows designers to simplify power management and take advantage of the single-supply, low-noise JFET architecture.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SOIC (8)
4.90 mm × 3.91 mm
VSSOP (8)
3.00 mm × 3.00 mm
SOT-23 (5)
2.90 mm × 1.60 mm
OPA2145
SOIC (8) VSSOP (8)
4.90 mm × 3.91 mm 3.00 mm × 3.00...
