LMV101_00 NSC | Alldatasheet
Document overview
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Technical content
Features
(For 5V Supply, Typical Unless Otherwise Noted) n Fixed inverting gain available −1,−2,−5,−10 n DC gain accuracy@2.7V supply — LMV101/102/105 2% (typ) — LMV110 6% (typ) n Space saving packages SC70-5 & SOT23-5 n Industrial temperature range −40˚C to +85˚C n Low supply current 130µA n Rail-to-Rail output swing n Guaranteed 2.7V and 5V performance
Applications
n General purpose portable devices n Mobile communications n Battery powered electronics n Active filters n Microphone preamplifiers Typical Application Phase Inverting AC Amplifier DS101234-10 VOUT = 0.5VCC −VIN (R2/R1) August 2000 LMV101/102/105/110 Fixed-Gain Amplifiers © 2000 National Semiconductor Corporation DS101234 www.national.com
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) Machine Model 200V Human Body Model 1500V Supply Voltage (V + -V −) 5.5V Output Short Circuit to V+ (Note 3) Output Short Circuit to V− (Note 4) Mounting Temperature Infrared or Convection (20 sec) 235˚C Storage Temperature Range -65˚C to 150˚C Junction Temperature (TJ , max) (Note 5) 150˚C Operating Ratings(Note 1) Supply Voltage 2.7V to 5.0V Temperature Range −40˚C ≤ TJ ≤ 85˚C Thermal resistance (θJA) 5-pin SC70-5 478˚C/W 5-pin SOT23-5 265˚C/W 2.7V Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 2.7V, V− = 0V, VO =V +/2 and RL > 1M Ω .Boldfacelim- its apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 6) Max (Note 7) Units VO Output Swing R L = 10kΩ to 1.35V V +−0.01 V +−0.1 V min 0.08 0.18 V max IS Supply Current 80 170 µA max DC Gain Accuracy LMV101, Gain = −1 2 5 % LMV102, Gain = −2 2 5 % LMV105, Gain = −5 2 6 % LMV110, Gain = −10 6 12 % GBW −3dB Bandwidth LMV101, Gain = −1, R L =2 kΩ ,C L = 100pF
1.6 MHz
LMV102, Gain = −2, R L =2 kΩ ,C L = 100pF
1.8 MHz
LMV105, Gain = −5, R L =2 kΩ ,C L = 100pF
0.8 MHz
LMV110, Gain = −10, R L =2 kΩ ,C L = 100pF
0.2 MHz
Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 5V, V− = 0V, VO =V +/2 and RL > 1M Ω .Boldfacelimits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 6) Max (Note 7) Units V O Output Swing R L =2 kΩ to 2.5V V +−0.04 V +−0.3 V+−0.4 V min 0.14 0.3 0.4 V max R L = 10kΩ to 2.5V V +−0.01 V +−0.1 V+−0.2 V min 0.1 0.18 0.28 V max IO Output Current Sourcing, V O =0 V 6 0 5 m A min Sinking, VO = 5V 160 10 mA min LMV101/102/105/110 www.national.com 2
Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 5V, V− = 0V, VO =V +/2 and RL > 1M Ω .Boldfacelimits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 6) Max (Note 7) Units IS Supply Current 130 250 350 µA max DC Gain Accuracy LMV101, Gain = −1 3.5 5 % LMV102, Gain = −2 3.5 5 % LMV105, Gain = −5 3.5 6 % LMV110, Gain = −10 9.0 12 % SR Slew Rate (Note 8) 1 V/µs GBW −3dB Bandwidth LMV101, Gain = −1, R L =2 kΩ ,C L = 100pF LMV102, Gain = −2, R L =2 kΩ ,C L = 100pF LMV105, Gain = −5, R L =2 kΩ ,C L = 100pF LMV110, Gain = −10, R L =2 kΩ ,C L = 100pF Note 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in- tended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics. Note 2:Human body model, 1.5kΩ in series with 100pF. Machine model, 0Ω in series with 100pF. Note 3:Shorting circuit output to V+ will adversely affect reliability. Note 4:Shorting circuit output to V− will adversely affect reliability. Note 5:The maximum power dissipation is a function of TJ(max) , θJA, and TA. The maximum allowable power dissipation at any ambient temperature is P D =( TJ(max)–T A)/θJA. All numbers apply for packages soldered directly into a PC board. Note 6:Typical Values represent the most likely parametric norm. Note 7:All limits are guaranteed by testing or statistical analysis. Note 8:Number specified is the slower of the positive and negative slew rates. Typical Performance Characteristics(Unless otherwise specified, VS = +5V, single supply, TA = 25˚C.) Supply Current vs. Supply Voltage DS101234-22 Sourcing Current vs. Output Voltage DS101234-23 LMV101/102/105/110 www.national.com3
Typical Performance Characteristics(Unless otherwise specified, VS = +5V, single supply, TA = 25˚C.) (Continued) Sourcing Current vs. Output Voltage DS101234-24 Sinking Current vs. Output Voltage DS101234-25 Sinking Current vs. Output Voltage DS101234-26 Output Voltage Swing vs. Supply Voltage DS101234-21 LMV101 Close Loop Frequency Response DS101234-27 LMV101 Close Loop Frequency Response DS101234-28 LMV101/102/105/110 www.national.com 4
Typical Performance Characteristics(Unless otherwise specified, VS = +5V, single supply, TA = 25˚C.) (Continued) LMV102 Close Loop Frequency Response DS101234-29 LMV102 Close Loop Frequency Response DS101234-30 LMV105 Close Loop Frequency Response DS101234-31 LMV105 Close Loop Frequency Response DS101234-32 LMV110 Close Loop Frequency Response DS101234-33 LMV110 Close Loop Frequency Response DS101234-34 LMV101/102/105/110 www.national.com5
Typical Performance Characteristics(Unless otherwise specified, VS = +5V, single supply, TA = 25˚C.) (Continued) Inverting Large Signal Pulse Response LMV101 DS101234-35 Inverting Large Signal Pulse Response LMV102 DS101234-37 Inverting Large Signal Pulse Response LMV105 DS101234-39 Inverting Large Signal Pulse Response LMV110 DS101234-41 Inverting Small Signal Pulse Response LMV101 DS101234-36 Inverting Small Signal Pulse Response LMV102 DS101234-38 LMV101/102/105/110 www.national.com 6
Typical Performance Characteristics(Unless otherwise specified, VS = +5V, single supply, TA = 25˚C.) (Continued)
Application Information
The LMV101/102/105/110 integrates a rail-to-rail op amp, two internal gain-setting resistors and a V+/2 bias circuit into one ultra tiny package, SC70-5 or SOT23-5. With its small footprint and reduced component count for gain stage, it en- ables the design of smaller portable electronic products, such as cellular phones, pagers, PDAs, PCMCIA cards, etc. In addition, the integration solution minimizes printed circuit board stray capacitance, and reduces the complexity of cir- cuit design. The core op amp of this family is National’s LMV321.
1.0 Supply Bypassing
The application circuits in this datasheet do not show the power supply connections and the associated bypass ca- pacitors for simplification. When the circuits are built, it is al- ways required to have bypass capacitors. Ceramic disc ca- pacitors (0.1µF) or solid tantalum (1µF) with short leads, and located close to the IC are usually necessary to prevent in- terstage coupling through the power supply internal imped- ance. Inadequate bypassing will manifest itself by a low fre- quency oscillation or by high frequency instabilities. Sometimes, a 10µF (or larger) capacitor is used to absorb low frequency variations and a smaller 0.1µF disc is paral- leled across it to prevent any high frequency feedback through the power supply lines.
2.0 Input Voltage Range
The input voltage should be within the supply rails. The ESD protection circuitry at the input of the device includes a diode between the input pin and the negative supply pin. Driving the input more than 0.6V (at 25˚C) beyond the negative sup- ply will turn on the diode and cause signal distortions. For applications that require sensing voltages beyond the nega- tive rail, use the LMV111 with external gain setting resistors. Inverting Small Signal Pulse Response LMV105 DS101234-40 Inverting Small Signal Pulse Response LMV110 DS101234-42 Slew Rate vs. Supply Voltage DS101234-43 LMV101/102/105/110 www.national.com7
3.0 Capacitive Load Tolerance
stability by adding more phase margin to the overall system. bigger the Risoresistor value, the more stable VOUT will be.
4.0 Phase Inverting AC Amplifier
5.0 Microphone preamplifier
PCs, PDAs, and mobile phones. according to the microphone requirement. FIGURE 1. Resistive Isolation of a Heavy Capacitive FIGURE 2. Pulse Response of LMV101 inFigure 1 FIGURE 3. Phase Inverting AC Amplifier
Figure 6. The impedance of the the gain of the preamplifier in absolute value.
6.0 Adjustable-Gain Amplifier
by adding only one external resistor. resistor from pin 1 to pin 3 (Figure 8). FIGURE 5. Microphone Preamplifier with 20dB Gain FIGURE 6. Improved Ripple Rejection FIGURE 7. Decreased Gain FIGURE 8. Increased Gain
Ordering Information
Package Part number Marking DC Gain R1 R2 Transport Media NSC Drawing SC70-5 LMV101M7 A38 −1 100k 100k 1k Units Tape and Reel MAA05A LMV101M7X 3k Units Tape and Reel LMV102M7 A39 −2 100k 200k 1k Units Tape and Reel LMV102M7X 3k Units Tape and Reel LMV105M7 A40 −5 50k 250k 1k Units Tape and Reel LMV105M7X 3k Units Tape and Reel LMV110M7 A41 −10 10k 100k 1k Units Tape and Reel LMV110M7X 3k Units Tape and Reel SOT23-5 LMV101M5 A33A −1 100k 100k 1k Units Tape and Reel MA05B LMV101M5X 3k Units Tape and Reel LMV102M5 A34A −2 100k 200k 1k Units Tape and Reel LMV102M5X 3k Units Tape and Reel LMV105M5 A35A −5 50k 250k 1k Units Tape and Reel LMV105M5X 3k Units Tape and Reel LMV110M5 A36A −10 10k 100k 1k Units Tape and Reel LMV110M5X 3k Units Tape and Reel DS101234-2 DS101234-1 5-Pin SC70-5 (M7) DS101234-3 5-Pin SOT23-5 (M5) LMV101/102/105/110 www.national.com 10
Physical Dimensionsinches (millimeters) unless otherwise noted 5-Pin SC70-5 Tape and Reel Order Numbers LMV101M7, LMV101M7X, LMV102M7, LMV102M7X, LMV105M7, LMV105M7X, LMV110M7 or LMV110M7X LMV101/102/105/110 www.national.com11
Physical Dimensionsinches (millimeters) unless otherwise noted 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 SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com 5-Pin SOT23-5 Tape and Reel Order Numbers LMV101M5, LMV101M5X, LMV102M5, LMV102M5X, LMV105M5, LMV105M5X, LMV110M5 or LMV110M5X LMV101/102/105/110 Fixed-Gain Amplifiers National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.