
Esp32
gdoor-org/gdoor
Wifi adapter and bus protocol documentation for the Gira TKS Door System

The LMV321IDBV is an operational Amplifier made by Texas Instruments in a SOT-23-5 package with 5 pins. -40℃~+125℃ 1 11nA 170uA 1MHz 1V/us 2.7V~5.5V 46nV/√Hz@1kHz 5mA 5nA 63dB 7mV 9uV/℃ Rail-to-rail output SOT-23-5 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. 90,141 are in stock at JLCPCB (part C7972). 3 open-source boards in 2 repositories on GitHub use it.
| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Supply voltage VCC | Over operating free-air temperature range | max 5.5 V | 5 |
| Differential input voltage VID | IN+ with respect to IN– | max 5.5 V | 5 |
| Input voltage range (either input) VI | Over operating free-air temperature range | min -0.2 · max 5.7 V | 5 |
| Operating virtual junction temperature TJ | max 150 °C | 5 | |
| Storage temperature range Tstg | min -65 · max 150 °C | 5 | |
| Electrostatic discharge V(ESD) | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins | min 0 · max 2000 V | 5 |
| Electrostatic discharge V(ESD) | Charged device model (CDM), per JEDEC specification JESD22-C101, all pins | min 0 · max 1000 V | 5 |
| Supply voltage (single-supply operation) VCC | min 2.7 · max 5.5 V | 5 | |
| Operating free-air temperature TA | I temperature, LMV321 | min -40 · max 125 °C | 5 |
| Junction-to-ambient thermal resistance RθJA | LMV321, DBV (SOT-23), 5 PINS | typ 232.9 °C/W | 5 |
| Input offset voltage VIO | VCC+ = 2.7 V, TA = 25°C | typ 1.7 · max 7 mV | 6 |
| Average temperature coefficient of input offset voltage αVIO | VCC+ = 2.7 V, TA = 25°C | typ 5 uV/°C | 6 |
| Input bias current IIB | VCC+ = 2.7 V, TA = 25°C | typ 11 · max 250 nA | 6 |
| Input offset current IIO | VCC+ = 2.7 V, TA = 25°C | typ 5 · max 50 nA | 6 |
| Common-mode rejection ratio CMRR | VCC+ = 2.7 V, TA = 25°C, VCM = 0 to 1.7 V | min 50 · typ 63 dB | 6 |
| Supply-voltage rejection ratio kSVR | TA = 25°C, VCC = 2.7 V to 5 V, VO = 1 V | min 50 · typ 60 dB | 6 |
| Common-mode input voltage range VICR | VCC+ = 2.7 V, TA = 25°C, CMRR ≥ 50 dB; lower endpoint | min 0 · typ -0.2 V | 6 |
| Common-mode input voltage range VICR | VCC+ = 2.7 V, TA = 25°C, CMRR ≥ 50 dB; upper endpoint | typ 1.9 · max 1.7 V | 6 |
| Output swing VO | VCC+ = 2.7 V, TA = 25°C, RL = 10 kΩ to 1.35 V, Low level | typ 60 · max 180 mV | 6 |
| Supply current ICC | VCC+ = 2.7 V, TA = 25°C, LMV321I | typ 80 · max 170 uA | 6 |
| Unity-gain bandwidth B1 | VCC+ = 2.7 V, TA = 25°C, CL = 200 pF | typ 1 MHz | 6 |
| Phase margin Φm | VCC+ = 2.7 V, TA = 25°C | typ 60 deg | 6 |
| Gain margin Gm | VCC+ = 2.7 V, TA = 25°C | typ 10 dB | 6 |
| Equivalent input noise voltage Vn | VCC+ = 2.7 V, TA = 25°C, f = 1 kHz | typ 46 nV/√ Hz | 6 |
| Equivalent input noise current In | VCC+ = 2.7 V, TA = 25°C, f = 1 kHz | typ 0.17 pA/√ Hz | 6 |
| Input offset voltage VIO | VCC+ = 5 V, TA = 25°C | typ 1.7 · max 7 mV | 7 |
| Input offset voltage VIO | VCC+ = 5 V, TA = –40°C to +125°C | max 9 mV | 7 |
| Average temperature coefficient of input offset voltage αVIO | VCC+ = 5 V, TA = 25°C | typ 5 uV/°C | 7 |
| Input bias current IIB | VCC+ = 5 V, TA = 25°C; maximum specified by characterization | typ 15 · max 250 nA | 7 |
| Input bias current IIB | VCC+ = 5 V, TA = –40°C to +125°C; specified by characterization | max 500 nA | 7 |
| Input offset current IIO | VCC+ = 5 V, TA = 25°C; maximum specified by characterization | typ 5 · max 50 nA | 7 |
| Input offset current IIO | VCC+ = 5 V, TA = –40°C to +125°C; specified by characterization | max 150 nA | 7 |
| Common-mode rejection ratio CMRR | VCC+ = 5 V, VCM = 0 to 4 V, TA = 25°C | min 50 · typ 65 dB | 7 |
| Supply-voltage rejection ratio kSVR | VCC = 2.7 V to 5 V, VO = 1 V, VCM = 1 V, TA = 25°C | min 50 · typ 60 dB | 7 |
| Common-mode input voltage range VICR | VCC+ = 5 V, CMRR ≥ 50 dB, TA = 25°C; lower endpoint | min 0 · typ -0.2 V | 7 |
| Common-mode input voltage range VICR | VCC+ = 5 V, CMRR ≥ 50 dB, TA = 25°C; upper endpoint | typ 4.2 · max 4 V | 7 |
| Output swing VO | VCC+ = 5 V, RL = 2 kΩ to 2.5 V, TA = 25°C, low level | typ 120 · max 300 mV | 7 |
| Output swing VO | VCC+ = 5 V, RL = 2 kΩ to 2.5 V, TA = –40°C to +125°C, low level; specified by characterization | max 400 mV | 7 |
| Output swing VO | VCC+ = 5 V, RL = 10 kΩ to 2.5 V, TA = 25°C, low level | typ 65 · max 180 mV | 7 |
| Output swing VO | VCC+ = 5 V, RL = 10 kΩ to 2.5 V, TA = –40°C to +125°C, low level; specified by characterization | max 280 mV | 7 |
| Large-signal differential voltage gain AVD | VCC+ = 5 V, RL = 2 kΩ, TA = 25°C | min 15 · typ 100 V/mV | 7 |
| Large-signal differential voltage gain AVD | VCC+ = 5 V, RL = 2 kΩ, TA = –40°C to +125°C; specified by characterization | min 10 V/mV | 7 |
| Output short-circuit current IOS | VCC+ = 5 V, Sourcing, VO = 0 V, TA = 25°C; minimum specified by characterization | min 5 · typ 40 mA | 7 |
| Output short-circuit current IOS | VCC+ = 5 V, Sinking, VO = 5 V, TA = 25°C; minimum specified by characterization | min 10 · typ 40 mA | 7 |
| Supply current ICC | VCC+ = 5 V, LMV321I, TA = 25°C | typ 130 · max 250 uA | 7 |
| Supply current ICC | VCC+ = 5 V, LMV321I, TA = –40°C to +125°C | max 350 uA | 7 |
| Unity-gain bandwidth B1 | VCC+ = 5 V, CL = 200 pF, TA = 25°C | typ 1 MHz | 7 |
| Phase margin Φm | VCC+ = 5 V, TA = 25°C | typ 60 deg | 7 |
| Gain margin Gm | VCC+ = 5 V, TA = 25°C | typ 10 dB | 7 |
| Equivalent input noise voltage Vn | VCC+ = 5 V, f = 1 kHz, TA = 25°C | typ 39 nV/√ Hz | 7 |
| Equivalent input noise current In | VCC+ = 5 V, f = 1 kHz, TA = 25°C | typ 0.21 pA/√ Hz | 7 |
| Slew rate SR | VCC+ = 5 V, TA = 25°C | typ 1 V/us | 7 |
| Pin | Name | Type |
|---|---|---|
| 1 | + | Input |
| 2 | V- | Power in |
| 3 | - | Input |
| 4 | — | Output |
| 5 | V+ | Power in |

gdoor-org/gdoor
Wifi adapter and bus protocol documentation for the Gira TKS Door System


<iframe src="https://pcbkit.io/embed/parts/ti/LMV321IDBV" title="LMV321IDBV in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/LMV321IDBV.jpg" alt="LMV321IDBV" width="1200" height="900">[](https://pcbkit.io/parts/ti/LMV321IDBV)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.
SOT-23-5, with 5 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C7972, with 90,141 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the LM321MF011 by GREENMICRO, the LMV321ICR by GREENMICRO, the LM321T5 by hongjiacheng and the LMV321IDBVR-TUDI by Tudi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
3 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.