OPA830 datasheet(1/63 Pages) TI2

Part #	OPA830

Description	OPAx835 Ultra-Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp

PDF	63 Pages

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Manufacturer	TI2 [Texas Instruments]

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OPAx835 Ultra-Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp

1 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 (AV = 1 V/V)

• Slew Rate: 160 V/µs

• Rise Time: 10 ns (2 VSTEP)

• Settling Time (0.1%): 55 ns (2 VSTEP)

• Overdrive Recovery Time: 200 ns

• SNR: 0.00015% (–116.4 dBc) at 1 kHz (1 VRMS)

• THD: 0.00003% (–130 dBc) at 1 kHz (1 VRMS)

• HD2/HD3: –70 dBc/–73 dBc at 1 MHz (2 VPP)

• 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

2 Applications

• Low-Power Signal Conditioning

• Audio ADC Input Buffer

• Low-Power SAR and ΔΣ ADC Driver

• Portable Systems

• Low-Power Systems

• High-Density Systems

• Ultrasonic Flow Meter

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

10k

100k

1M

10M

f - Frequency - Hz

V = 5 V,

G = 1,

V

= 2 Vpp,

R = 0

,

R = 2 k

S

OUT

F

L

W

HD3

HD2

Harmonic Distortion vs Frequency

3 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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

OPA835

SOT-23 (6)

2.90 mm × 1.60 mm

QFN (10)

2.00 mm × 2.00 mm

OPA2835

SOIC (8)

4.90 mm × 3.91 mm

VSSOP (10)

3.00 mm × 3.00 mm

UQFN (10)

2.00 mm × 2.00 mm

QFN (10)

2.00 mm × 2.00 mm

(1)

See the package option addendum at the end of the data

sheet for all available packages.

OPA835, OPA2835

SLOS713J – JANUARY 2011 – REVISED MARCH 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

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