0
ACTIVE
Number of channels |
2 |
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) |
36 |
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) |
4.5 |
Vos (offset voltage at 25°C) (max) (mV) |
0.15 |
Offset drift (typ) (µV/°C) |
0.4 |
Input bias current (max) (pA) |
10 |
GBW (typ) (MHz) |
5.5 |
Slew rate (typ) (V/µs) |
20 |
Rail-to-rail |
Out |
Iq per channel (typ) (mA) |
0.445 |
Vn at 1 kHz (typ) (nV√Hz) |
7 |
CMRR (typ) (dB) |
140 |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 125 |
Iout (typ) (A) |
0.02 |
Architecture |
FET |
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 |
SOIC (D)-8-29.4 mm² 4.9 x 6
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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