Datasheet

1
10 100 10k 100k
FREQUENCY (Hz)
1
10
100
1k
VOLTAGE NOISE (nV/
Hz)
V
+
= 5.5V
V
+
= 2.5V
C
CM
I
IN
R
F
V
OUT
+
-
+
-
V
B
C
F
C
D
V
OUT
I
IN
- R
F
=
C
IN
= C
D
+ C
CM
LMV791, LMV792
www.ti.com SNOSAG6F –SEPTEMBER 2005–REVISED MARCH 2013
LMV791/LMV792 17 MHz, Low Noise, CMOS Input, 1.8V Operational Amplifiers with
Shutdown
Check for Samples: LMV791, LMV792
1
FEATURES
DESCRIPTION
The LMV791 (Single) and the LMV792 (Dual) low
2
(Typical 5V Supply, Unless Otherwise Noted)
noise, CMOS input operational amplifiers offer a low
• Input Referred Voltage Noise 5.8 nV/√Hz
input voltage noise density of 5.8 nV/√Hz while
• Input Bias Current 100 fA
consuming only 1.15 mA (LMV791) of quiescent
current. The LMV791 and LMV792 are unity gain
• Unity Gain Bandwidth 17 MHz
stable op amps and have gain bandwidth of 17 MHz.
• Supply Current per Channel Enable Mode
The LMV791/ LMV792 have a supply voltage range
– LMV791 1.15 mA
of 1.8V to 5.5V and can operate from a single supply.
The LMV791/LMV792 each feature a rail-to-rail
– LMV792 1.30 mA
output stage capable of driving a 600Ω load and
• Supply Current per Channel in Shutdown
sourcing as much as 60 mA of current.
Mode 0.02 µA
The LMV791 family provides optimal performance in
• Rail-to-Rail Output Swing
low voltage and low noise systems. A CMOS input
– @ 10 kΩ Load 25 mV from Rail
stage, with typical input bias currents in the range of
– @ 2 kΩ Load 45 mV from Rail
a few femtoAmperes, and an input common mode
voltage range which includes ground make the
• Ensured 2.5V and 5.0V Performance
LMV791 and the LMV792 ideal for low power sensor
• Total Harmonic Distortion 0.01% @1 kHz, 600Ω
applications. The LMV791 family has a built-in enable
• Temperature Range −40°C to 125°C
feature which can be used to optimize power
dissipation in low power applications.
APPLICATIONS
The LMV791/LMV792 are manufactured using TI’s
• Photodiode Amplifiers
advanced VIP50 process and are offered in a 6-pin
SOT and a 10-pin VSSOP package respectively.
• Active Filters and Buffers
• 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
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2005–2013, 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.