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LMV794 Datasheet

(LMV793 / LMV794) Decompensated Operational Amplifiers

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August 2007
LMV793/LMV794
88 MHz, Low Noise, 1.8V CMOS Input, Decompensated
Operational Amplifiers
General Description
The LMV793 (single) and the LMV794 (dual) CMOS input
operational amplifiers offer a low input voltage noise density
of 5.8 nV/ while consuming only 1.15 mA (LMV793) of
quiescent current. The LMV793/LMV794 are stable at a gain
of 10 and have a gain bandwidth product (GBW) of 88 MHz.
www.DataSheeTt4hUe.cLoMmV793/LMV794 have a supply voltage range of 1.8V to
5.5V and can operate from a single supply. The LMV793/
LMV794 each feature a rail-to-rail output stage capable of
driving a 600load and sourcing as much as 60 mA of cur-
rent.
The LMV793/LMV794 provide optimal performance in low
voltage and low noise systems. A CMOS input stage, with
typical input bias currents in the range of a few femto-Am-
peres, and an input common mode voltage range, which
includes ground, make the LMV793/LMV794 ideal for low
power sensor applications where high speeds are needed.
The LMV793/LMV794 are manufactured using National’s ad-
vanced VIP50 process. The LMV793 is offered in either a 5-
Pin SOT23 or an 8-Pin SOIC package. The LMV794 is offered
in either the 8-Pin SOIC or the 8-Pin MSOP.
Features
(Typical 5V supply, unless otherwise noted)
Input referred voltage noise
5.8 nV/Hz
Input bias current
100 fA
Gain bandwidth product
88 MHz
Supply current per channel
LMV793
1.15 mA
LMV794
1.30 mA
Rail-to-rail output swing
@ 10 kload
@ 2 kload
25 mV from rail
45 mV from rail
Guaranteed 2.5V and 5.0V performance
Total harmonic distortion
0.04% @1 kHz, 600
Temperature range
−40°C to 125°C
Applications
ADC interface
Photodiode amplifiers
Active filters and buffers
Low noise signal processing
Medical instrumentation
Sensor interface applications
Typical Application
20216369
Photodiode Transimpedance Amplifier
20216339
Input Referred Voltage Noise vs. Frequency
© 2007 National Semiconductor Corporation 202163
www.national.com


National Semiconductor Electronic Components Datasheet

LMV794 Datasheet

(LMV793 / LMV794) Decompensated Operational Amplifiers

No Preview Available !

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD Tolerance (Note 2)
Human Body Model
Machine Model
VIN Differential
Supply Voltage (V+ – V)
Input/Output Pin Voltage
Storage Temperature Range
Junction Temperature (Note 3)
2000V
200V
±0.3V
6.0V
V+ +0.3V, V−0.3V
−65°C to 150°C
+150°C
Soldering Information
Infrared or Convection (20 sec)
Wave Soldering Lead Temp (10 sec)
235°C
260°C
Operating Ratings (Note 1)
Temperature Range (Note 3)
−40°C to 125°C
Supply Voltage (V+ – V)
−40°C TA 125°C
2.0V to 5.5V
0°C TA 125°C
1.8V to 5.5V
Package Thermal Resistance (θJA (Note 3))
5-Pin SOT23
180°C/W
8-Pin SOIC
190°C/W
8-Pin MSOP
236°C/W
www.DataSheet4U.c2om.5V Electrical Characteristics (Note 4)
Unless otherwise specified, all limits are guaranteed for TA = 25°C, V+ = 2.5V, V= 0V, VCM = V+/2 = VO. Boldface limits apply at
the temperature extremes.
Symbol
Parameter
Conditions
Min Typ Max Units
(Note 6) (Note 5) (Note 6)
VOS Input Offset Voltage
0.1
±1.35
±1.65
mV
TC VOS Input Offset Average Drift
(Note 7)
LMV793
LMV794
−1.0
−1.8
μV/°C
IB Input Bias Current
VCM = 1.0V
(Notes 8, 9)
−40°C TA 85°C
−40°C TA 125°C
0.05 1
25
0.05 1
100
pA
IOS
CMRR
Input Offset Current
(Note 9)
Common Mode Rejection Ratio 0V VCM 1.4V
10
80 94
75
fA
dB
PSRR Power Supply Rejection Ratio 2.0V V+ 5.5V, VCM = 0V
CMVR
Input Common-Mode Voltage
Range
1.8V V+ 5.5V, VCM = 0V
CMRR 60 dB
CMRR 55 dB
80
75
80
−0.3
-0.3
100
98
1.5
1.5
dB
V
AVOL
Open Loop Gain
VOUT = 0.15V to 2.2V,
RL = 2 kto V+/2
LMV793
LMV794
85 98
80
82 92
78
dB
VOUT Output Swing High
VOUT = 0.15V to 2.2V,
RL = 10 kto V+/2
RL = 2 kto V+/2
88 110
84
25 75
82
Output Swing Low
RL = 10 kto V+/2
RL = 2 kto V+/2
20 65
71 mV from
30 75 rail
78
RL = 10 kto V+/2
15 65
67
IOUT Output Short Circuit Current Sourcing to V
VIN = 200 mV (Note 10)
Sinking to V+
VIN = –200 mV (Note 10)
35 47
28
7 15
5
mA
www.national.com
2


Part Number LMV794
Description (LMV793 / LMV794) Decompensated Operational Amplifiers
Maker National Semiconductor
Total Page 22 Pages
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