0.1

1

10

1k

10k

FREQUENCY (Hz)

1

10

100

1000

100

5V

2.5V

CCM

IIN

RF

VOUT

+

-

+

-

VB

CF

CD

VOUT

IIN

- RF

=

CIN = CD + CCM

LMV793, LMV794

www.ti.com

SNOSAX6D – MARCH 2007 – REVISED MARCH 2013

LMV793/LMV794 88 MHz, Low Noise, 1.8V CMOS Input, Decompensated Operational

Amplifiers

Check for Samples: LMV793, LMV794

1

FEATURES

DESCRIPTION

The LMV793 (single) and the LMV794 (dual) CMOS

2

(Typical 5V Supply, Unless Otherwise Noted)

input operational amplifiers offer a low input voltage

•

Input Referred Voltage Noise 5.8 nV/

√Hz

noise density of 5.8 nV/

√Hz while consuming only

•

Input Bias Current 100 fA

1.15

mA

(LMV793)

of

quiescent

current.

The

LMV793/LMV794 are stable at a gain of 10 and have

•

Gain Bandwidth Product 88 MHz

a gain bandwidth product (GBW) of 88 MHz. The

•

Supply Current per Channel

LMV793/LMV794 have a supply voltage range of

–

LMV793 1.15 mA

1.8V to 5.5V and can operate from a single supply.

The LMV793/LMV794 each feature a rail-to-rail

–

LMV794 1.30 mA

output stage capable of driving a 600

Ω load and

•

Rail-to-Rail Output Swing

sourcing as much as 60 mA of current.

–

@ 10 k

Ω Load 25 mV from Rail

The LMV793/LMV794 provide optimal performance in

–

@ 2 k

Ω Load 45 mV from Rail

low voltage and low noise systems. A CMOS input

•

Ensured 2.5V and 5.0V Performance

stage, with typical input bias currents in the range of

a few femto-Amperes, and an input common mode

•

Total Harmonic Distortion 0.04% @1 kHz, 600

Ω

voltage range, which includes ground, make the

•

Temperature Range

−40°C to 125°C

LMV793/LMV794

ideal

for

low

power

sensor

applications where high speeds are needed.

APPLICATIONS

The LMV793/LMV794 are manufactured using TI’s

•

ADC Interface

advanced VIP50 process. The LMV793 is offered in

•

Photodiode Amplifiers

either a 5-Pin SOT23 or an 8-Pin SOIC package. The

LMV794 is offered in either the 8-Pin SOIC or the 8-

•

Active Filters and Buffers

Pin VSSOP.

•

Low Noise Signal Processing

•

Medical Instrumentation

•

Sensor Interface Applications

Typical Application

Figure 1. Photodiode Transimpedance Amplifier

Figure 2. Input Referred Voltage Noise vs.

Frequency

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.