Texas Instruments OPA145IDGKR
- Part Number:
- OPA145IDGKR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6405265-OPA145IDGKR
- Description:
- Single, 5.5-MHz, high slew rate, low-noise, low-power, RRO precision JFET operational amplifier
- ECAD Model:
-
- Datasheet:
- opa145
- Number of channels1
- Total supply voltage ( 5 V = 5±5 V = 10) (min) (V)
- Vos (offset voltage at 25°C) (max) (mV)0.15
- GBW (typ) (MHz)5.5
- Slew rate (typ) (V/μs)20
- Rail-to-railIn to V-
- Offset drift (typ) (V/°C)0.0000004
- Iq per channel (typ) (mA)0.445
- Vn at 1 kHz (typ) (nV√Hz)7
- CMRR (typ) (dB)140
- RatingCatalog
- Operating temperature range (°C)-40 to 125
- Input bias current (max) (pA)10
- Iout (typ) (A)0.02
- ArchitectureFET
- Input common mode headroom (to negative supply) (typ) (V)-0.1
- Input common mode headroom (to positive supply) (typ) (V)-3.5
- Output swing headroom (to negative supply) (typ) (V)0.1
- Output swing headroom (to positive supply) (typ) (V)-0.1
- THD N at 1 kHz (typ) (%)0.0001
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 pico-ampere 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.
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