LMV791 Datasheet, PDF (1/34 Pages) National Semiconductor (TI) – 17 MHz, Low Noise, CMOS Input, 1.8V Operational Amplifier

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LMV791, LMV792
SNOSAG6G – SEPTEMBER 2005 – REVISED OCTOBER 2015
LMV79x 17-MHz, Low-Noise, CMOS Input, 1.8-V Operational Amplifiers With Shutdown
1 Features
1Typical 5-V Supply, Unless Otherwise Noted
• Input Referred Voltage Noise 5.8 nV/√Hz
• Input Bias Current 100 fA
• Unity Gain Bandwidth 17 MHz
• Supply Current per Channel Enable Mode
– LMV791 1.15 mA
– LMV792 1.30 mA
• Supply Current per Channel in Shutdown Mode
0.02 µA
• Rail-to-Rail Output Swing
– At 10-kΩ Load, 25 mV from Rail
– At 2-kΩ Load, 45 mV from Rail
• Ensured 2.5-V and 5-V Performance
• Total Harmonic Distortion 0.01% at1 kHz, 600 Ω
• Temperature Range −40°C to 125°C
2 Applications
• Photodiode Amplifiers
• Active Filters and Buffers
• Low-Noise Signal Processing
• Medical Instrumentation
• Sensor Interface Applications
3 Description
The LMV791 (single) and the LMV792 (dual) low-
noise, CMOS input operational amplifiers offer a low
input voltage noise density of 5.8 nV/√Hz while
consuming only 1.15 mA (LMV791) of quiescent
current. The LMV791 and LMV792 are unity gain
stable operational amplifiers and have gain bandwidth
of 17 MHz. The LMV79x have a supply voltage range
of 1.8 V to 5.5 V and can operate from a single
supply. The LMV79x each feature a rail-to-rail output
stage capable of driving a 600-Ω load and sourcing
as much as 60 mA of current.
The LMV79x family provides optimal performance in
low-voltage and low-noise systems. A CMOS input
stage, with typical input bias currents in the range of
a few femtoamperes, and an input common-mode
voltage range which includes ground, make the
LMV791 and the LMV792 ideal for low-power sensor
applications. The LMV79x family has a built-in enable
feature which can be used to optimize power
dissipation in low power applications.
The LMV791x are manufactured using TI’s advanced
VIP50 process and are offered in a 6-pin SOT and a
10-pin VSSOP package respectively.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMV791
SOT (6)
2.90 mm × 1.60 mm
LMV792
VSSOP (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Photodiode Transimpedance Amplifier
C_F
I_IN
C_CM
C_D
R_F
-
+
+
V_OUT
-
Low-Noise CMOS Input
100
V⁺ = 5.5V
V⁺ = 2.5V
10
V_B
C_IN = C_D + C_CM
V_OUT
I_IN
=
-
R_F
1
1
10 100 1k 10k 100k
FREQUENCY (Hz)
1
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.