LMV922 NSC [National Semiconductor], LMV922 Datasheet

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LMV922

Manufacturer Part Number
LMV922
Description
1.8V, 1MHz, Low Power Operational Amplifiers with Rail-To-Rail Input and Output
Manufacturer
NSC [National Semiconductor]
Datasheet

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© 1999 National Semiconductor Corporation
LMV921 Single/ LMV922 Dual/ LMV924 Quad
1.8V, 1MHz, Low Power Operational Amplifiers with
Rail-To-Rail Input and Output
General Description
The LMV921 Single/LMV922 Dual/LMV924 Quad are guar-
anteed to operate from +1.8V to +5.0V supply voltages and
have rail-to-rail input and output. This rail-to-rail operation
enables the user to make full use of the entire supply voltage
range. The input common mode voltage range extends
300mV beyond the supplies and the output can swing
rail-to-rail unloaded and within 100mV from the rail with
600
are optimized to work at 1.8V which make them ideal for por-
table two-cell battery-powered systems and single cell Li-Ion
systems.
The
speed-power ratio, achieving 1MHz gain bandwidth product
at 1.8V supply voltage with very low supply current. The
LMV921/LMV922/LMV924 are capable of driving 600
and up to 1000pF capacitive load with minimal ringing. The
LMV921/LMV922/LMV924’s high DC gain of 100dB makes
them suitable for low frequency applications.
The LMV921 (Single) is offered in a space saving SC70–5
and SOT23–5 packages. The SC70–5 package is only
2.0X2.1X1.0mm. These small packages are ideal solutions
for area constrained PC boards and portable electronics
such as cellphones and PDAs.
Connection Diagrams
load at 1.8V supply. The LMV921/LMV922/LMV924
LMV921/LMV922/LMV924
5-Pin SC70-5/SOT23-5
Top View
DS100979-84
exhibit
DS100979
excellent
load
Features
(Typical 1.8V Supply Values; Unless Otherwise Noted)
n Guaranteed 1.8V, 2.7V and 5V specifications
n Rail-to-Rail input & output swing
n V
n 90dB gain w/600
n Supply current
n Gain bandwidth product
n LMV921 Maximum V
n LMV921 available in Ultra Tiny, SC70-5 package
n LMV922 available in MSOP-8 package
n LMV924 available in TSSOP-14 package
Applications
n Cordless/cellular phones
n Laptops
n PDAs
n PCMCIA
n Portable/battery-powered electronic Equipment
n Supply current Monitoring
n Battery monitoring
CM
w/600
w/2k
load
load
8-Pin MSOP/SOIC
load
OS
Top View
300mV beyond rails
DS100979-2
100 mV from rail
December 1999
30 mV from rail
145µA/amplifier
www.national.com
1MHz
6mV

Related parts for LMV922

LMV922 Summary of contents

Page 1

... The LMV921/LMV922/LMV924 are capable of driving 600 and up to 1000pF capacitive load with minimal ringing. The LMV921/LMV922/LMV924’s high DC gain of 100dB makes them suitable for low frequency applications. The LMV921 (Single) is offered in a space saving SC70–5 and SOT23– ...

Page 2

... Units Tape and Reel A21 3k Units Tape and Reel A29A 1k Units Tape and Reel A29A 3k Units Tape and Reel LMV922 1k Units Tape and Reel LMV922 3.5k Units Tape and Reel LMV924 Rails LMV924 2.5k Units Tape and Reel LMV922M Rails LMV922M 2.5k Units Tape and Reel ...

Page 3

... Surface Mount −65˚C to 150˚C SOIC Package 150˚C 8-Pin Surface Mount 14-Pin Surface Mount 235˚C + − = 25˚ 1.8V 0V Condition LMV921 (Single) LMV922 (Dual) LMV924 (Quad) LMV921 (Single) LMV922 (Dual) LMV924 (Quad 0.6V CM −0. 1. 1. ...

Page 4

... V J Conditions (Note kHz 0. kHz f = 1kHz 600k , (Note 8) + − = 25˚ 2.7V 0V Condition LMV921 (Single) LMV922 (Dual) LMV924 (Quad / and O Typ Limits Units (Note 6) 1.7 1.65 V 1.63 min 0.075 0.090 V 0.105 max 1.77 1. ...

Page 5

... Slew Rate GBW Gain-Bandwidth Product Phase Margin m G Gain Margin m e Input-Referred Voltage Noise n i Input-Referred Current Noise n (Continued) + − = 25˚ 2.7V 0V Condition LMV921 (Single) LMV922 (Dual) LMV924 (Quad 1.5V CM −0. < 2. 1. 0.5V CM For CMRR 50dB ...

Page 6

... V J Conditions kHz 600k , (Note 8) + − = 25˚ Condition (Note 5) LMV921 (Single) LMV922 (Dual) LMV924 (Quad) LMV921 (Single) LMV922 (Dual) LMV924 (Quad 3.8V CM −0. 5. 0.5V CM For CMRR 50dB R = 600 to 2. ...

Page 7

... J CM Condition (Note 600 to 2.5V L ± 100mV 2.5V L ± 100mV IN LMV921 Sourcing 100mV IN LMV922, LMV924 Sourcing 100mV IN Sinking −100mV IN + − = 25˚ Conditions (Note kHz kHz kHz ...

Page 8

Simplified Schematic www.national.com DS100979-A9 8 ...

Page 9

Typical Performance Characteristics Supply Current vs. Supply Voltage (LMV921) DS100979-A1 Sourcing Current vs. Output Voltage DS100979-B8 Sinking Current vs. Output Voltage DS100979-B7 Unless otherwise specified, V Input Bias Current vs DS100979-D5 Sourcing Current vs. Output Voltage DS100979-B2 Sinking ...

Page 10

Typical Performance Characteristics T = 25˚C. (Continued) A Offset Voltage vs. Common Mode Voltage DS100979-C9 Output Voltage Swing vs. Supply Voltage DS100979-A3 Gain and Phase Margin vs. Frequency DS100979-A4 www.national.com Unless otherwise specified, V Offset Voltage vs. Common Mode Voltage ...

Page 11

Typical Performance Characteristics T = 25˚C. (Continued) A CMRR vs. Frequency DS100979-C7 Input Current Noise vs. Frequency DS100979-F5 Slew Rate vs. Supply Voltage DS100979-99 Unless otherwise specified, V PSRR vs. Frequency DS100979-C6 THD vs. Frequency DS100979-D4 Small Signal Non-Inverting Response ...

Page 12

Typical Performance Characteristics T = 25˚C. (Continued) A Small Signal Non-Inverting Response DS100979-E4 Small Signal Inverting Response DS100979-D8 Small Signal Non-Inverting Response DS100979-E5 www.national.com Unless otherwise specified, V Small Signal Inverting Response DS100979-E0 Small Signal Non-Inverting Response DS100979-E6 Small Signal ...

Page 13

Typical Performance Characteristics T = 25˚C. (Continued) A Small Signal Inverting Response DS100979-G1 * Large Signal Non-Inverting Response DS100979-G0 * Large Signal Inverting Response DS100979-F7 * For large signal pulse response in the unity gain follower configuration, the input is ...

Page 14

Typical Performance Characteristics T = 25˚C. (Continued Large Signal Inverting Response DS100979-F6 * Large Signal Inverting Response DS100979-D7 * For large signal pulse response in the unity gain follower configuration, the input is 5mV below the positive rail ...

Page 15

... OS 4.0 Input and Output Stage The rail-to-rail input stage of this family provides more flex- ibility for the designer. The LMV921/LMV922/LMV924 use a complimentary PNP and NPN input stage in which the PNP stage senses common mode voltage near V stage senses common mode voltage near V ...

Page 16

... Power-Supply Considerations The LMV921/LMV922/LMV924 are ideally suited for use with most battery-powered systems. The LMV921/LMV922/ LMV924 operate from a single +1.8V to +5.0V supply and consumes about 145µA of supply current per Amplifier. A TABLE 1 ...

Page 17

Typical Applications 1.0 Half-wave Rectifier with Rail-To-Ground Output Swing Since the LMV921 input common mode range includes both positive and negative supply rails and the output can also swing to either supply, achieving half-wave rectifier functions in either direction is ...

Page 18

Typical Applications (Continued) 2.0 Instrumentation Amplifier with Rail-To-Rail Input and Output Using three of the LMV924 Amplifiers, an instrumentation amplifier with rail-to-rail inputs and outputs can be made. Some manufacturers use a precision voltage divider array of 5 resistors to ...

Page 19

SC70–5 Tape Dimensions SOT23–5 and SC70–5 Tape Format Tape Format Tape Section # Cavities Leader (Start End) Carrier Trailer 125 (min) (Hub End) Cavity Status 0 (min) Empty 75 (min) Empty 3000 Filled 250 Filled Empty 0 (min) Empty 19 ...

Page 20

SOT23–5 Tape Dimensions 8 mm 0.130 0.124 (3.3) (3.15) Tape Size DIM A DIM Ao www.national.com ± 0.130 0.126 0.138 0.002 0.055 ± (3.3) (3.2) (3.5 0.05) (1.4 DIM B DIM Bo DIM F DIM Ko 20 DS100979-97 ± ± ...

Page 21

SOT23–5 and SC70–5 Reel Dimensions 8 mm 7.00 0.059 0.512 0.795 2.165 330.00 1.50 13.00 20.20 55.00 Tape Size A B 0.331 + 0.059/−0.000 0.567 8.40 + 1.50/−0. DS100979-98 W1+ 0.078/−0.039 14. 2.00/−1.00 ...

Page 22

Physical Dimensions inches (millimeters) unless otherwise noted www.national.com SC70-5 Order Number LMV921M7 or LMV921M7X NS Package Number MAA05A 22 ...

Page 23

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Order Number LMV921M5 or LMV921M5X SOT 23-5 NS Package Number MA05B 23 www.national.com ...

Page 24

... Physical Dimensions inches (millimeters) unless otherwise noted (Continued) www.national.com 8-Pin MSOP Order Number LMV922MM or LMV922MMX NS Package Number MUA08A 24 ...

Page 25

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Order Number LMV924MT or LMV924MTX 14-Pin TSSOP NS Package Number MTC14 25 www.national.com ...

Page 26

... Physical Dimensions inches (millimeters) unless otherwise noted (Continued) www.national.com 8-Pin SOIC Order Number LMV922M or LMV922MX NS Package Number M08A 26 ...

Page 27

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL ...

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