0
ACTIVE
Architecture |
Voltage FB |
Number of channels |
2 |
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) |
2.7 |
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) |
12.6 |
GBW (typ) (MHz) |
50 |
BW at Acl (MHz) |
110 |
Acl, min spec gain (V/V) |
1 |
Slew rate (typ) (V/µs) |
105 |
Vn at flatband (typ) (nV√Hz) |
5.9 |
Vn at 1 kHz (typ) (nV√Hz) |
5.9 |
Iq per channel (typ) (mA) |
0.7 |
Vos (offset voltage at 25°C) (max) (mV) |
1.3 |
Rail-to-rail |
In, Out |
Features |
Output short-circuit protection, Overload power limit, Shutdown |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 125 |
CMRR (typ) (dB) |
120 |
Input bias current (max) (pA) |
730000 |
Offset drift (typ) (µV/°C) |
1 |
Iout (typ) (mA) |
30 |
2nd harmonic (dBc) |
-129 |
3rd harmonic (dBc) |
-138 |
Frequency of harmonic distortion measurement (MHz) |
0.02 |
SOIC (D)-8-29.4 mm² 4.9 x 6
The OPAx863 devices are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers designed to operate over a power-supply range of 2.7 V to 12.6 V. Consuming only 700 µA per channel, the OPAx863 offers a gain-bandwidth product of 50 MHz, slew rate of 105 V/µs with a voltage noise density of 5.9 nV/√Hz.
The rail-to-rail input stage with 2.7-V supply operation is useful in portable, battery-powered applications. The rail-to-rail input stage is well-matched for gain-bandwidth product and noise across the full input common‑mode voltage range, enabling excellent performance with wide-input dynamic range. The OPAx863 feature a power-down (PD) mode with a PD quiescent current (I Q) of 1.5-µA (maximum) and a turn-on or turn-off time within 6.5-µs using a 3-V supply.
The OPAx863 includes overload power limiting to limit the increase in I Q with saturated outputs, thereby preventing excessive power dissipation in power-conscious, battery-operated systems. The output stage is short-circuit protected, making these devices conducive to ruggedized environments.