The OPA145 operational amplifier (op amp) is a low-power JFET input amplifier that has excellent drift, low current noise, and pico-ampere input bias current, making this device a suitable 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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Part number | Order | Number of channels (#) | Total supply voltage (Min) (+5V=5, +/-5V=10) | Total supply voltage (Max) (+5V=5, +/-5V=10) | GBW (Typ) (MHz) | Slew rate (Typ) (V/us) | Rail-to-rail | Vos (offset voltage @ 25 C) (Max) (mV) | Offset drift (Typ) (uV/C) | Iq per channel (Typ) (mA) | Vn at 1 kHz (Typ) (nV/rtHz) | CMRR (Typ) (dB) | Rating | Operating temperature range (C) | Package Group | Package size: mm2:W x L (PKG) | Input bias current (Max) (pA) | Output current (Typ) (mA) | Features | Architecture |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OPA145 |
|
1 | 4.5 | 36 | 5.5 | 20 |
In to V-
Out |
0.15 | 0.4 | 0.445 | 7 | 140 | Catalog | -40 to 125 |
SOIC | 8
SOT-23 | 5 VSSOP | 8 |
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5) 8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
10 | 20 | FET | |
OPA131 |
|
1 | 9 | 36 | 4 | 10 |
In
Out |
0.75 | 2 | 1.5 | 15 | 80 | Catalog | -55 to 125 | SOIC | 8 | 8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) | 50 | 25 | FET | |
OPA132 |
|
1 | 5 | 36 | 8 | 20 | No | 0.5 | 2 | 4 | 8 | 100 | Catalog | -40 to 125 | SOIC | 8 | 8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) | 50 | 40 | FET | |
OPA141 |
|
1 | 4.5 | 36 | 10 | 20 |
In to V-
Out |
3.5 | 2 | 1.8 | 6.5 | 126 | Catalog | -40 to 125 |
SOIC | 8
VSSOP | 8 |
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
20 | 30 | FET |