0
ACTIVE
Architecture |
Voltage FB |
Number of channels |
1 |
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) |
105 |
Acl, min spec gain (V/V) |
1 |
Slew rate (typ) (V/µs) |
100 |
Vn at flatband (typ) (nV√Hz) |
6.3 |
Vn at 1 kHz (typ) (nV√Hz) |
5.9 |
Iq per channel (typ) (mA) |
0.8 |
Vos (offset voltage at 25°C) (max) (mV) |
0.095 |
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) |
0.3 |
Iout (typ) (mA) |
30 |
2nd harmonic (dBc) |
129 |
3rd harmonic (dBc) |
-138 |
Frequency of harmonic distortion measurement (MHz) |
0.02 |
SOT-23 (DBV)-5-8.12 mm² 2.9 x 2.8
The OPA863A and OPA2863A devices (OPAx863A) are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers. These devices are trimmed in package to offer high-precision performance with a maximum input offset voltage of 95µV and offset drift of 1.2µV/°C for high accuracy measurements over temperature.
Consuming only 800µA per channel, the OPAx863A offer a gain-bandwidth product of 50MHz, slew rate of 100V/µs, and a voltage noise density of 6.3nV/√Hz. The rail-to-rail input stage with 2.7V 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 OPAx863A include overload power limiting to limit the increase in IQ 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.
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