0
Architecture |
Voltage FB |
Number of channels |
2 |
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) |
2.5 |
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) |
5.5 |
GBW (typ) (MHz) |
30 |
BW at Acl (MHz) |
56 |
Acl, min spec gain (V/V) |
1 |
Slew rate (typ) (V/µs) |
160 |
Vn at flatband (typ) (nV√Hz) |
9.3 |
Vn at 1 kHz (typ) (nV√Hz) |
10 |
Iq per channel (typ) (mA) |
0.25 |
Vos (offset voltage at 25°C) (max) (mV) |
0.5 |
Rail-to-rail |
In to V-, Out |
Features |
Shutdown |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 125 |
CMRR (typ) (dB) |
113 |
Input bias current (max) (pA) |
400000 |
Offset drift (typ) (µV/°C) |
2.25 |
Iout (typ) (mA) |
40 |
2nd harmonic (dBc) |
70 |
3rd harmonic (dBc) |
73 |
Frequency of harmonic distortion measurement (MHz) |
1 |
SOIC (D)-8-29.4 mm² 4.9 x 6
The OPA835 and OPA2835 devices (OPAx835) are single and dual ultra-low-power, rail-to-rail output, negative-rail input, voltage-feedback (VFB) operational amplifiers designed to operate over a power supply range of 2.5-V to 5.5-V with a single supply, or ±1.25-V to ±2.75-V with a dual supply. Consuming only 250 µA per channel and with a unity gain bandwidth of 56 MHz, these amplifiers set an industry-leading performance-to-power ratio for rail-to-rail amplifiers.
For battery-powered, portable applications where power is of key importance, the low power consumption and high-frequency performance of the OPA835 and OPA2835 devices offers performance versus power that is not attainable in other devices. Coupled with a power-savings mode to reduce current to < 1.5 µA, these devices offer an attractive solution for high-frequency amplifiers in battery-powered applications.
The OPA835 RUN package option includes integrated gain-setting resistors for the smallest possible footprint on a printed-circuit-board (approximately 2.00 mm × 2.00 mm). By adding circuit traces on the PCB, gains of +1, –1, –1.33, +2, +2.33, –3, +4, –4, +5, –5.33, +6.33, –7, +8 and inverting attenuations of –0.1429, –0.1875, –0.25, –0.33, –0.75 can be achieved. See Table 9-1 and Table 9-2 for details.
The OPA835 and OPA2835 devices are characterized for operation over the extended industrial temperature range of –40°C to +125°C.