

LMV321
Jiangsu Changjing Electronics Technology (CJ)
-2.75V~-1.25V、1.25V~2.75V 0℃~+70℃ 1 10pA 10pA 1MHz 2.1V~5.5V 20mA 20nV/√Hz@10kHz 520V/ms 60uA 70dB 800uV Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5L Operational Amplifier ROHS
- Category
- Operational Amplifier
- Package
- SOT-23-5L
- Pins
- 5
Overview
The LMV321 is an operational Amplifier made by Jiangsu Changjing Electronics Technology (CJ) in a SOT-23-5L package with 5 pins. -2.75V~-1.25V、1.25V~2.75V 0℃~+70℃ 1 10pA 10pA 1MHz 2.1V~5.5V 20mA 20nV/√Hz@10kHz 520V/ms 60uA 70dB 800uV Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5L Operational Amplifier ROHS.
PCBKit's library has its KiCad symbol (Amplifier_Operational:LMV321, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23-5, from KiCad's library), ready for a KiCad board. 78,605 are in stock at JLCPCB (part C2829423). 117 open-source boards in 92 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
9- Supply, least
- 2.1 V · VS, minimum operating voltage at +25℃ · p. 2
- Supply, least
- 2.5 V · VS, minimum operating voltage over 0℃ to 75℃ · p. 2
- Supply, most
- 5.5 V · VS, maximum operating voltage · p. 2
- Supply, absolute maximum
- 7.5 V · V+ to V-, absolute maximum · p. 2
- Works from
- 0 °C · minimum operating temperature · p. 2
- Works up to
- 70 °C · maximum operating temperature · p. 2
- Junction, hottest
- 160 °C · maximum junction temperature · p. 2
- Takes working
- 60 µA · typical quiescent current, VS = +5V, IOUT = 0, +25℃ · p. 2
- Takes at most
- 86 µA · max quiescent current, VS = +5V, IOUT = 0, 0℃ to 75℃ · p. 2
What it is and has
3- Amplifier architecture
- Rail-to-rail input and output CMOS · p. 1
- Unity gain stability
- Unity gain stable · p. 1
- Gain bandwidth product
- 1MHz · p. 1
Around it
2- cap 0.1μF
- between VDD and GND; Ceramic supply bypass; place close to VDD. Required for single-supply operation and separately for VDD in dual-supply operation. · p. 6
- cap 0.1μF
- between VSS and GND; Separate ceramic bypass capacitor for dual-supply operation. · p. 6
Specifications
35| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Supply Voltage, V+ to V- | max 7.5 V | 2 | |
| Storage Temperature Range | min -65 · max 150 ℃ | 2 | |
| Junction Temperature | max 160 ℃ | 2 | |
| Operating Temperature Range | min 0 · max 70 ℃ | 2 | |
| Lead Temperature Range | Soldering 10 sec | max 260 ℃ | 2 |
| Input Offset Voltage V OS | +25℃; bipolar values printed as ±0.8 typical and ±5 maximum; magnitudes recorded | typ 0.8 · max 5 mV | 2 |
| Input Offset Voltage V OS | 0℃ to 75℃; maximum magnitude, printed as ±6 | max 6 mV | 2 |
| Input Bias Current IB | +25℃ | typ 10 pA | 2 |
| Input Offset Current IOS | +25℃ | typ 10 pA | 2 |
| Common-Mode Rejection Ratio CMRR | VS=5.5V, VCM=-0.1V to 4V; +25℃ | min 62 · typ 70 dB | 2 |
| Common-Mode Rejection Ratio CMRR | VS=5.5V, VCM=-0.1V to 4V; 0℃ to 75℃ | min 62 dB | 2 |
| Common-Mode Rejection Ratio CMRR | VS= 5.5V, VCM=-0.1V to 5.6V; +25℃ | min 56 · typ 68 dB | 2 |
| Common-Mode Rejection Ratio CMRR | VS= 5.5V, VCM=-0.1V to 5.6V; 0℃ to 75℃ | min 55 dB | 2 |
| Open-Loop Voltage Gain AOL | RL= 5KΩ ,Vo=0.1V to 4.9V; +25℃ | min 70 · typ 80 dB | 2 |
| Open-Loop Voltage Gain AOL | RL= 5KΩ ,Vo=0.1V to 4.9V; 0℃ to 75℃ | min 70 dB | 2 |
| Open-Loop Voltage Gain AOL | RL=100KΩ,Vo=0.035V to 4.965V; +25℃ | min 80 · typ 84 dB | 2 |
| Open-Loop Voltage Gain AOL | RL=100KΩ,Vo=0.035V to 4.965V; 0℃ to 75℃ | min 80 dB | 2 |
| Output Voltage Swing from Rail | RL = 100KΩ; +25℃ | typ 0.008 V | 2 |
| Output Voltage Swing from Rail | RL = 10KΩ; +25℃ | typ 0.08 V | 2 |
| Output Current IOUT | +25℃ | min 20 · typ 27 mA | 2 |
| Output Current IOUT | 0℃ to 75℃ | min 18.8 mA | 2 |
| Operating Voltage Range | +25℃; lower limit | min 2.1 V | 2 |
| Operating Voltage Range | 0℃ to 75℃; lower limit | min 2.5 V | 2 |
| Operating Voltage Range | +25℃; upper limit | max 5.5 V | 2 |
| Operating Voltage Range | 0℃ to 75℃; upper limit | max 5.5 V | 2 |
| Power Supply Rejection Ratio PSRR | Vs =+2.5V to + 5.5V; VCM= (-VS) + 0.5V; +25℃ | min 60 · typ 82 dB | 2 |
| Power Supply Rejection Ratio PSRR | Vs =+2.5V to + 5.5V; VCM= (-VS) + 0.5V; 0℃ to 75℃ | min 58 dB | 2 |
| Quiescent Current IQ | IOUT = 0; +25℃ | typ 60 · max 80 uA | 2 |
| Quiescent Current IQ | IOUT = 0; 0℃ to 75℃ | max 86 uA | 2 |
| Gain-Bandwidth Product GBP | CL= 100pF; +25℃ | typ 1 MHz | 3 |
| Slew Rate SR | G = +1, 2V Output Step; +25℃ | typ 0.52 V/us | 3 |
| Settling Time to 0.1% tS | G = +1, 2V Output Step; +25℃ | typ 5.3 us | 3 |
| Overload Recovery Time | VIN ·Gain = VS; +25℃ | typ 2.6 us | 3 |
| Voltage Noise Density en | f = 1kHz; +25℃ | typ 27 nV/ | 3 |
| Voltage Noise Density en | f = 10kHz; +25℃ | typ 20 nV/ | 3 |
Parameters
19- Common Mode Rejection Ratio(CMRR)
- 70dB
- Current - Supply
- 60uA
- Current - Supply(Max)
- 86uA
- Dual Supply
- 1.25V~2.75V
- Features
- Built-in compensation
- Gain Bandwidth Product
- 1MHz
- Ib - Input Bias Current
- 10pA
- Input Offset Current(Ios)
- 10pA
- Input Voltage Noise Density
- 20nV/√Hz@10kHz
- Junction Temperature(Max)
- 160℃
- Number of Channels
- 1
- Operating Temperature
- 0℃~+70℃
- Output Current
- 20mA
- Quiescent Current
- 60uA
- Rail to Rail
- Rail-to-Rail Input, Rail-to-Rail Output
- Single supply
- 2.1V~5.5V
- Slew Rate
- 520V/ms
- Voltage - Supply(Absolute Max)
- 7.5V
- Vos - Input Offset Voltage
- 800uV
Order codes
1- LMV321LCSC C2829423
Pinout
5| Pin | Name | Type |
|---|---|---|
| 1 | + | Input |
| 2 | V- | Power in |
| 3 | - | Input |
| 4 | — | Output |
| 5 | V+ | Power in |
Open-source boards using it
All 117- 2 layers192.2 × 150.5 mm

- 4 layers40 × 60 mm

Control board v2.0
0x23/nmWave-Interferometer
An Open Source Interferometer for Accurate Distance Measurements
106 parts151MIT - 2 layers165.8 × 130.8 mm

YAEMK
KarlK90/yaemk-split-kb
5x8 Split keyboard with thumb-clusters, rotary encoders and oleds.
218 parts128GPL-3.0 - 2 layers53.5 × 101.8 mm

Sony scopeman
lucysrausch/sony-scopeman
Hardware Design files of a replacement mainboard for the Sony Watchman FD-10. This turns it into a bluetooth and WiFi-enabled vector display.
135 parts69 - 4 layers100 × 100 mm

- 2 layers96 × 74.4 mm

Monolith
luftaquila/monolith
DIY wireless real-time datalogging platform for Student Formula and Baja.
138 parts45 - 4 layers44 × 44 mm

- 2 layers143.9 × 118.7 mm

Cantaloupe
Kaleidogeist/Cantaloupe
~60% QMK-compatible Split Ergonomic Keyboard
121 parts32CERN-OHL-S-2.0
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/cj/LMV321" title="LMV321 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/cj/LMV321.jpg" alt="LMV321" width="1200" height="900">[](https://pcbkit.io/parts/cj/LMV321)Questions
Is there a KiCad symbol and footprint for the LMV321?
Yes. The symbol is Amplifier_Operational:LMV321 and the footprint Package_TO_SOT_SMD:SOT-23-5, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LMV321?
SOT-23-5L, with 5 pins. Its footprint is drawn on this page.
Where is the LMV321 datasheet?
Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.
Where can I order the LMV321?
JLCPCB lists it as part C2829423, with 78,605 in stock; the sellers' links on this page open their listings.
What can replace the LMV321?
Parts like it in the library: the LMV321IDBVR by UMW, the LM321MF by UMW, the TLV9061IDBV by Texas Instruments and the LM321-TR by Gainsil. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the LMV321?
117 boards in 92 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8LMV321IDBVR
SOT-23-5-40℃~+125℃ 1 10nA 10pA 1MHz 2.1V~5.5V 2.7uV/℃ 20nV/√Hz@10kHz 25mA 45uA 520V/ms 5mV 70dB Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5 Operational Amplifier ROHSUMWOperational AmplifierLM321MF
SOT-23-5L-40℃~+85℃ 1MHz 2mV 3V~32V 3nA 400V/ms 40mA 430uA 45nA 90dB SOT-23-5L Operational Amplifier ROHSUMWOperational AmplifierTLV9061IDBV
SOT-23-5-40℃~+125℃ 0.05pA 0.5pA 1 1.6mV 1.8V~5.5V 103dB 10MHz 10nV/√Hz@1kHz 50mA 530nV/℃ 538uA 6.5V/us Enable/shutdown function、ESD protection、EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5 Operational Amplifier ROHSTexas InstrumentsOperational AmplifierLM321-TR
SOT-23-5-14V~-1.5V、1.5V~14V -25℃~+85℃ 1 120uA 1MHz 200V/ms 3V~28V 45nA 5mV 5nA 60mA 70dB 7uV/℃ Built-in compensation SOT-23-5 Operational Amplifier ROHSGainsilOperational AmplifierLM321MFX
SOT-23-5-40℃~+85℃ 1 1MHz 3V~30V 400V/ms 40mA 40nV/√Hz@1kHz 430uA 500nA 5nA 7mV 85dB SOT-23-5 Operational Amplifier ROHSTexas InstrumentsOperational AmplifierAS321KTR-G1
SOT-23-5-18V~-1.5V、1.5V~18V -40℃~+85℃ 1 20nA 2mV 30nA 350uA 3V~36V 40mA 70dB 7uV/℃ Built-in compensation SOT-23-5 Operational Amplifier ROHSDiodes IncorporatedOperational AmplifierLM321A-TR
SOT-23-5-40℃~+125℃ 1 100uA 120dB 25mA 3V~36V 3mV 500V/ms 60pA 60pA 70nV/√Hz@1kHz 7uV/℃ 900kHz Rail-to-rail output SOT-23-5 Operational Amplifier ROHS3PEAKOperational AmplifierLM321DTR(XBLW)
SOT-23-5-40℃~+85℃ 1 100uA 1MHz 2mV 3V~32V 3nA 400V/ms 40mA 45nA 90dB SOT-23-5 Operational Amplifier ROHSXBLWOperational Amplifier