My Inquiry
My Account
Texas Instruments LMV321IDBVRE4
- Part No.:
- LMV321IDBVRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV321IDBVRE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,865
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMV321IDBVRE4 from Texas Instruments is a single-channel, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5.5 V) operation, delivering 1 MHz unity-gain bandwidth, 1 V/μs slew rate, and 130 μA typical supply current at 2.7 V - used in portable media players, HVAC sensor conditioning, and desktop PC power monitoring circuits.
For engineers reviewing the LMV321IDBVRE4 datasheet, LMV321IDBVRE4 pinout, LMV321IDBVRE4 application, or LMV321IDBVRE4 equivalent, key selection criteria include its SOT-23-5 package footprint, rail-to-rail output swing down to 60 mV from ground and within 100 mV of VCC at 10 kΩ load, input offset voltage of 1.7–7 mV, and guaranteed operation from –40°C to 125°C.
Technical Context
The LMV321IDBVRE4 employs a CMOS input stage with bipolar output, enabling rail-to-rail output swing while maintaining low input bias current (11–250 nA) and wide common-mode input range (–0.2 V to VCC – 1.9 V at 2.7 V). Its internal compensation ensures stable unity-gain operation with capacitive loads up to 1000 pF.
It operates as a single-supply op amp without requiring dual rails, supports direct connection to microcontroller ADC inputs via its rail-to-rail output, and features ESD protection exceeding 2000-V HBM and 1000-V CDM - critical for industrial and consumer end-equipment reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V - enables direct use with Li-ion battery (3.0–4.2 V) or 3.3-V logic systems without level-shifting. |
| Unity-Gain Bandwidth | 1 MHz - supports audio pre-amplification and sensor signal conditioning up to ~100 kHz with <1% gain error. |
| Slew Rate | 1 V/μs - limits full-scale step response time to ≤1 μs for 1-V output transitions, suitable for medium-speed feedback loops. |
| Input Offset Voltage | 1.7–7 mV (typ) - determines DC accuracy in precision gain stages; requires calibration or trimming for sub-mV error budgets. |
| Rail-to-Rail Output | Swings within 60 mV of GND and 100 mV of VCC (at 10 kΩ) - maximizes dynamic range when interfacing with 3.3-V ADCs or comparators. |
| Supply Current | 130 μA typ at 2.7 V - enables always-on sensor front-ends in battery-powered devices with multi-year runtime. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial motor control, and high-ambient consumer applications. |
Pinout & Package
LMV321IDBVRE4 is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm × 1.15 mm, optimized for space-constrained PCB layouts and high-density portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Amplified signal output; rail-to-rail capable; drives loads ≥10 kΩ directly into ADC inputs or analog switches. |
| 2 (IN–) | Inverting Input | Differential input node; accepts signals from 0.2 V below GND to VCC – 1.9 V at 2.7 V supply. |
| 3 (IN+) | Noninverting Input | Reference or signal input node; same common-mode range as IN–; low input bias current minimizes resistor-induced offset. |
| 4 (GND) | Negative Supply | Ground reference for single-supply operation; must be low-impedance to avoid noise coupling into sensitive analog paths. |
| 5 (VCC+) | Positive Supply | Primary power rail; decoupling capacitor (0.1 μF ceramic) required within 5 mm for stability and PSRR performance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of 3.3-V ADC input range without external level-shifting circuitry. |
| Low 130-μA supply current | Reduces quiescent power in always-on sensor nodes - e.g., 100 nA sleep mode not required for basic battery life extension. |
| –40°C to +125°C operation | Eliminates derating or thermal design margin for industrial temperature-grade applications like motor drive current sensing. |
| No crossover distortion | Ensures clean small-signal amplification across zero-crossing points - critical for audio line drivers and precision instrumentation. |
| ESD protection >2000-V HBM | Withstands handling and board-level ESD events without external protection diodes in most consumer and industrial assemblies. |
Applications
| Desktop PCs | HVAC Sensors |
|---|---|
Use Scenario: Monitoring 12-V and 5-V rail voltages via resistive dividers before ADC sampling. IC Role / Device Role / Timing Role: Precision buffer and level translator between divider network and microcontroller ADC input. Use Value: Rail-to-rail output ensures full 0–3.3 V ADC range is used, improving measurement resolution by up to 12 bits effective. | Use Scenario: Amplifying thermistor or RTD bridge outputs in thermostats and air handlers. IC Role / Device Role / Timing Role: Low-drift, low-noise signal conditioner with DC-coupled gain stage before sigma-delta ADC. Use Value: 1.7–7 mV input offset and 46 nV/√Hz input noise enable ±0.5°C temperature accuracy over –20°C to +85°C ambient. |
| Portable Media Players | Motor Control Feedback |
Use Scenario: Driving headphone outputs or line-level audio signals from DACs in compact handheld devices. IC Role / Device Role / Timing Role: Single-supply audio buffer with rail-to-rail swing and low THD+N (<0.1% at 1 kHz). Use Value: 1-V/μs slew rate and 1-MHz bandwidth support 20-kHz audio bandwidth with minimal phase shift and distortion. | Use Scenario: Isolating and scaling shunt-resistor current sense signals in BLDC motor controllers. IC Role / Device Role / Timing Role: High-CMRR (≥50 dB) differential amplifier front-end for current feedback loop. Use Value: Common-mode input range extending to –0.2 V allows accurate sensing during PWM dead-time intervals without clipping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV321IDCKR | Same electrical specs; SC-70-5 package (2.00 mm × 1.25 mm), 0.25 mm smaller footprint than DBV. | Better suited for ultra-dense layouts where 0.9-mm² area reduction justifies requalification. | Select LMV321IDCKR only if board space is constrained beyond SOT-23 limits and assembly process supports SC-70. |
| TLV9001IDBVR | Lower input offset (0.75 mV max), higher GBW (1 MHz), but 150 μA supply current; same SOT-23-5 package. | Preferred for precision sensor interfaces requiring tighter DC accuracy without increasing power budget. | Choose TLV9001IDBVR when input offset drift or long-term stability outweighs marginal supply current increase. |
Compared with LMV321IDBVRE4, LMV321IDCKR offers identical performance in a smaller package for space-limited designs, while TLV9001IDBVR trades slightly higher quiescent current for improved DC precision - making it optimal for high-accuracy analog front-ends where offset dominates error budget.
Availability
LMV321IDBVRE4 is available at Aetrix Electronics and suitable for desktop PCs, HVAC sensors, and portable media players requiring stable component supply, consistent parametric performance across temperature, and long-term production continuity.
Supply support for LMV321IDBVRE4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and signal chain solutions.
The LMV3xx family was designed for cost-sensitive, low-voltage applications demanding rail-to-rail output, wide temperature operation, and minimal PCB footprint - targeting portable, industrial, and computing end-equipment.
FAQ
What is the maximum supply voltage rating for LMV321IDBVRE4?
The absolute maximum supply voltage for LMV321IDBVRE4 is 5.5 V. Operation above this level risks permanent damage. Recommended operating range is 2.7 V to 5.5 V, with full electrical specifications guaranteed across that span. At 5 V, LMV321IDBVRE4 delivers 130 μA typical supply current and rail-to-rail output swing within 65 mV of GND and 100 mV of VCC into 10 kΩ.
Does LMV321IDBVRE4 support true rail-to-rail input?
No, LMV321IDBVRE4 features rail-to-rail *output* only. Its common-mode input voltage range extends from –0.2 V to VCC – 1.9 V at 2.7 V supply (or VCC – 4 V at 5 V), meaning the inputs cannot accept signals at the positive rail. It does include ground in the input range, enabling single-supply operation with AC-coupled or biased inputs referenced to GND.
What is the typical input bias current of LMV321IDBVRE4 at 25°C?
The typical input bias current of LMV321IDBVRE4 is 11 nA at 25°C and 2.7 V supply, with a maximum of 250 nA across temperature. This low bias current minimizes voltage drop across high-value feedback or sensor interface resistors, preserving DC accuracy in high-impedance configurations such as photodiode transimpedance amplifiers or thermistor bridges.
Can LMV321IDBVRE4 drive capacitive loads without oscillation?
Yes, LMV321IDBVRE4 is internally compensated for unity-gain stability with capacitive loads up to 1000 pF, as verified in TI's datasheet Figure 4 and Figure 7. For loads >100 pF, layout best practices (short traces, local decoupling, ground plane) are recommended. No external compensation is needed for standard 10–100 pF PCB trace or cable capacitance encountered in sensor or audio routing.
Is LMV321IDBVRE4 pin-compatible with other LMV3xx variants?
LMV321IDBVRE4 (SOT-23-5) shares the same pinout as LMV321IDCKR (SC-70-5) and LMV321IDBVR (SOT-23-5), but is *not* pin-compatible with dual (LMV358) or quad (LMV324) variants due to differing pin counts and functions. All LMV321 variants use identical 5-pin topology: OUT, IN–, IN+, GND, VCC+ - enabling direct substitution within the single-channel family.
LMV321IDBVRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 1.7 mV
- Current - Supply:
- 130µA
- Current - Output / Channel:
- 160 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV321IDBVRE4 FAQ
1.How can I place an order for LMV321IDBVRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV321IDBVRE4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMV321IDBVRE4 reliable?
The price and inventory of LMV321IDBVRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV321IDBVRE4 is usually 5 days.
3.What payment methods are accepted for LMV321IDBVRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV321IDBVRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV321IDBVRE4?
LMV321IDBVRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV321IDBVRE4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LMV321IDBVRE4?
For technical support, including LMV321IDBVRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV321IDBVRE4 requirements.
6.How does Aetrix verify that LMV321IDBVRE4 is sourced from the original manufacturer or authorized distributors?
All LMV321IDBVRE4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMV321IDBVRE4 meets industry standards.
7.What is the process for return or replacement of LMV321IDBVRE4?
All LMV321IDBVRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV321IDBVRE4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LMV321IDBVRE4 part is unused and in its original packaging.
Return procedure for LMV321IDBVRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV321IDBVRE4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
