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Details, datasheet, quote on part number:LMV921EVAL
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| Part: | LMV921EVAL |
| Description: | LMV921 - 1.8V, 1MHz, Low Power Operational Amplifiers With Rail-to-rail Input And Output, Package: Evaluation Board, Pin Nb=- |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LMV921EVAL datasheet File size : 799 kB |
| Request For quote: | Find where to buy LMV921EVAL
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Datasheet text preview:
LMV921/LMV922/LMV924 Single, Dual and Quad 1.8V, 1MHz, Low Power Operational Amplifiers with Rail-To-Rail Input and Output
December 2001
LMV921/LMV922/LMV924 Single, Dual and 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 guaranteed 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 load at 1.8V supply. The LMV921/LMV922/LMV924 are optimized to work at 1.8V which make them ideal for portable two-cell battery-powered systems and single cell Li-Ion systems. The LMV921/LMV922/LMV924 exhibit excellent 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 load 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.
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 -- w/600 load 100 mV from rail -- w/2k load 30 mV from rail n VCM 300mV beyond rails n Supply current 145µA/amplifier n Gain bandwidth product 1MHz n LMV921 Maximum VOS 6mV n 90dB gain w/600 load 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 n n n n n n Cordless/cellular phones Laptops PDAs PCMCIA Portable/battery-powered electronic Equipment Supply current Monitoring Battery monitoring
Supply Current vs. Supply Voltage (LMV921)
Output Voltage Swing vs. Supply Voltage
Gain and Phase Margin vs. Frequency
100979A1
100979A3
100979A7
© 2001 National Semiconductor Corporation
DS100979
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LMV921/LMV922/LMV924
Absolute Maximum Ratings
(Note 1)
Operating Ratings (Note 1)
Supply Voltage Temperature Range Thermal Resistance (JA) Ultra Tiny SC70-5 Package 5-Pin Surface Mount Tiny SOT23-5 Package 5-Pin Surface Mount MSOP Package 8-Pin Surface Mount TSSOP Package 14-Pin Surface Mount SOIC Package 8-Pin Surface Mount 14-Pin Surface Mount 440 °C/W 265 °C/W 235°C/W 155°C/W 175°C/W 127°C/W 1.5V to 5.0V -40°C TJ 85°C
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 2) Machine Model Human Body Model Differential Input Voltage Supply Voltage (V+ V -) Output Short Circuit to V+ (Note 3) Output Short Circuit to V- (Note 3) Storage Temperature Range Junction Temperature (Note 4) Mounting Temp. Infrared or Convection (20 sec) 235°C -65°C to 150°C 150°C 100V 2000V
± Supply Voltage
5.5V
1.8V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25°C. V+ = 1.8V, V RL > 1 M. Boldface limits apply at the temperature extremes. Symbol VOS Parameter Input Offset Voltage Condition LMV921 (Single) LMV922 (Dual) LMV924 (Quad) TCVOS IB IOS IS Input Offset Voltage Average Drift Input Bias Current Input Offset Current Supply Current LMV921 (Single) LMV922 (Dual) LMV924 (Quad) CMRR Common Mode Rejection Ratio 0 VCM 0.6V -0.2V VCM 0V 1.8V VCM 2.0V PSRR VCM Power Supply Rejection Ratio Input Common-Mode Voltage Range 1.8V V+ 5V, VCM = 0.5V For CMRR 50dB
-
= 0V, VCM = V+/2, VO = V+/2 and Typ (Note 5) -1.8 -1.8 1 12 2 145 330 560 82 74 78 -0.3 2.15 35 50 25 40 185 205 400 550 700 850 62 60 50 67 62 -0.2 0 2.0 1.8 dB min dB min V min V max µA max Limits (Note 6) 6 8 8 9.5 Units mV max mV max µV/°C nA max nA max
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LMV921/LMV922/LMV924
1.8V DC Electrical Characteristics
Symbol AV Parameter Large Signal Voltage Gain LMV921 (Single)
(Continued) Unless otherwise specified, all limits guaranteed for TJ = 25°C. V+ = 1.8V, V RL > 1 M. Boldface limits apply at the temperature extremes. Condition RL = 600 to 0.9V, VO = 0.2V to 1.6V, VCM = 0.5V RL = 2k to 0.9V, VO = 0.2V to 1.6V, VCM = 0.5V Large Signal Voltage Gain LMV922 (Dual) LMV924 (Quad) RL = 600 to 0.9V, VO = 0.2V to 1.6V, VCM = 0.5V RL = 2k to 0.9V, VO = 0.2V to 1.6V, VCM = 0.5V RL = 600 to 0.9V VIN = ± 100mV
-
= 0V, VCM = V+/2, VO = V+/2 and Typ (Note 5) 91 95 79 83 1.7 0.075 Limits (Note 6) 77 73 80 75 65 61 68 63 1.65 1.63 0.090 0.105 1.75 1.74 0.035 0.040 4 3.3 7 5 Units
dB min
dB min V min V max V min V max mA min mA min
VO
Output Swing
RL = 2k to 0.9V VIN = ± 100mV
1.77 0.025
IO
Output Short Circuit Current
Sourcing, VO = 0V VIN = 100mV Sinking, VO = 1.8V VIN = -100mV
6 10
1.8V AC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25°C. V+ = 1.8V, V Boldface limits apply at the temperature extremes. Symbol SR GBW m Gm en in THD Parameter Slew Rate Gain-Bandwidth Product Phase Margin Gain Margin Input-Referred Voltage Noise Input-Referred Current Noise Total Harmonic Distortion Amp-to-Amp Isolation f = 1 kHz, VCM = 0.5V f = 1 kHz f = 1kHz, AV = +1 RL = 600k, VIN = 1 VPP (Note 8) (Note 7) Conditions
-
= 0V, VCM = V+/2, VO = V+/2 and RL > 1 M. Typ (Note 5) 0.39 1 60 10 45 0.1 Units V/µs MHz Deg dB
0.089 140
% dB
2.7V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25°C. V+ = 2.7V, V RL > 1 M. Boldface limits apply at the temperature extremes. Symbol VOS Parameter Input Offset Voltage Condition LMV921 (Single) LMV922 (Dual) LMV924 (Quad)
-
= 0V, VCM = V+/2, VO = V+/2 and Typ (Note 5) -1.6 -1.6 Limits (Note 6) 6 8 8 9.5 Units mV max mV max
3
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