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OPA2835IDR

Voltage Feedback Amplifier 2 Circuit Differential, Rail-to-Rail 8-SOIC

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

OPA2835IDR
Datasheet:

OPA2835IDR Datasheet (PDF)
genericPartNumber:

OPA2835
partDescription:

Dual, Ultra Low Power, Rail to Rail Out, Negative Rail In, VFB Amplifier
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OPA2835IDR General Description

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.

Key Features

Ultra-Low Power
- Supply Voltage: 2.5 V to 5.5 V
- Quiescent Current: 250 µA/ch (Typical)
- Power Down Mode: 0.5 µA (Typical)
Bandwidth: 56 MHz (A_V = 1 V/V)
Slew Rate: 160 V/µs
Rise Time: 10 ns (2 V_STEP)
Settling Time (0.1%): 55 ns (2 V_STEP)
Overdrive Recovery Time: 200 ns
SNR: 0.00015% (–116.4 dBc) at 1 kHz (1 V_RMS)
THD: 0.00003% (–130 dBc) at 1 kHz (1 V_RMS)
HD₂/HD₃: –70 dBc/–73 dBc at 1 MHz (2 V_PP)
Input Voltage Noise: 9.3 nV/√ Hz (f = 100 kHz)
Input Offset Voltage: 100 µV (±500-µV Maximum)
CMRR: 113 dB
Output Current Drive: 40 mA
RRO: Rail-to-Rail Output
Input Voltage Range: –0.2 V to 3.9 V (5-V Supply)
Operating Temperature Range: –40°C to +125°C

Specifications

genericPartNumber	OPA2835	orderablePartNumber	OPA2835IDR
partDescription	Dual, Ultra Low Power, Rail to Rail Out, Negative Rail In, VFB Amplifier	statusDisplay	ACTIVE
statusDescription	This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.