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Texas Instruments LMV821M5X
- Part No.:
- LMV821M5X
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV821M5X.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,884
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Product details
Overview
LMV821M5X from Texas Instruments is a single, rail-to-rail output (RRO), low-voltage, low-power operational amplifier in SC70-5 package. It delivers 5 MHz gain-bandwidth product at 2.7 V supply, 1.4 V/µs slew rate, 3.5 mV max input offset voltage, and 220 µA quiescent current per amplifier-optimized for battery-powered portable electronics including cellular phones and PDAs.
For engineers reviewing the LMV821M5X datasheet, LMV821M5X pinout, LMV821M5X application, or LMV821M5X equivalent, key selection criteria include its RRO swing into 600 Ω (160 mV from rail), −40°C to +85°C industrial temperature range, and validated performance at 2.5 V, 2.7 V, and 5 V supplies with CMRR ≥90 dB and PSRR ≥85 dB.
Technical Context
The LMV821M5X employs a CMOS input stage enabling rail-to-rail output swing and ground-sensing input common-mode range (−0.3 V to 4.3 V at 5 V supply). Its unity-gain stable architecture supports capacitive loads up to 100 pF without external compensation, verified across RL = 600 Ω to 10 kΩ load conditions.
Designed for single-supply operation, it features internal biasing that maintains 90 dB CMRR and 85 dB PSRR over full temperature and supply ranges, with input offset drift of only 1 µV/°C-critical for precision signal conditioning in low-noise, low-power sensor interfaces and analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 5 MHz at 2.7 V supply - enables stable unity-gain buffer or gain-of-10 amplification up to 500 kHz. |
| Slew Rate | 1.4 V/µs min - supports clean 1 kHz sine wave output at 2.5 Vpp into 600 Ω without distortion. |
| Input Offset Voltage | 3.5 mV max - ensures ≤0.7% error in 500 mV full-scale sensor signal amplification. |
| Supply Current | 220 µA per amplifier at 2.7 V - extends battery life in always-on wearable or IoT sensor nodes. |
| Rail-to-Rail Output | Swings within 160 mV of rails into 600 Ω - maximizes dynamic range in 3.3 V or lower ADC reference systems. |
| Input Common-Mode Range | −0.3 V to 4.3 V at 5 V supply - accepts signals below ground and up to near V+, simplifying level-shifting. |
| CMRR / PSRR | 90 dB / 85 dB - rejects power supply noise and common-mode interference in noisy embedded environments. |
Pinout & Package
LMV821M5X is housed in a 5-pin SC70 package (2.0 mm × 1.25 mm × 0.95 mm), optimized for space-constrained portable designs. Pinout follows standard op-amp configuration with non-inverting input, inverting input, output, positive supply, and negative supply terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-Inverting Input | High-impedance CMOS node accepting signals from sensors or DACs; supports ground-referenced inputs. |
| 2 (IN−) | Inverting Input | High-impedance node for feedback network connection; enables precision inverting amplifier configurations. |
| 3 (OUT) | Output | Rail-to-rail capable driver delivering up to 26 mA sink/source into 600 Ω load with <160 mV headroom. |
| 4 (V−) | Negative Supply | Connects to GND in single-supply operation; supports split-supply down to −0.3 V for bipolar signal handling. |
| 5 (V+) | Positive Supply | Accepts 2.5 V to 5.5 V; regulates internal biasing-enables direct interface with Li-ion or 3.3 V logic rails. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Output (RRO) | Delivers 2.58 V high / 0.20 V low swing into 600 Ω at 2.7 V supply-preserves >92% of available voltage range. |
| Low Quiescent Current | 220 µA typical at 2.7 V-reduces system power by >50% vs. comparable 1 mA op-amps in always-on monitoring circuits. |
| Stable with Capacitive Loads | Operates unconditionally stable with up to 100 pF load capacitance-eliminates need for isolation resistors in ADC driver stages. |
| Wide Supply Range | 2.5 V to 5.5 V operation-supports direct integration with 2.5 V, 2.7 V, 3.3 V, and 5 V subsystems without LDO overhead. |
| Low Input Offset Drift | 1 µV/°C TCVOS-limits thermal-induced error to <85 µV over −40°C to +85°C ambient, critical for precision instrumentation. |
Applications
| Cellular Phone Audio Amplifier | Laptop Touchscreen Controller Interface |
|---|---|
Use Scenario: Amplifies low-level analog signals from MEMS microphones before ADC sampling in smartphone voice capture chains. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail output op-amp configured as non-inverting gain stage with 20–40 dB fixed gain. Use Value: 220 µA supply current extends talk-time; 5 MHz GBW ensures flat frequency response up to 20 kHz; RRO swing maximizes SNR in 3.3 V ADC systems. |
Use Scenario: Buffers and conditions analog voltage outputs from touchscreen controller ICs driving 10 kΩ input impedance of display timing controllers. IC Role / Device Role / Timing Role: Unity-gain voltage follower isolating high-impedance controller outputs from trace capacitance and ESD transients. Use Value: 90 dB CMRR rejects noise coupling from adjacent digital lines; 1.4 V/µs slew rate handles fast touch coordinate updates without settling delay. |
| PDA Battery Monitoring Circuit | PCMCIA Modem Line Transceiver |
Use Scenario: Senses battery cell voltage via precision resistor divider, feeding scaled signal to microcontroller ADC with minimal loading error. IC Role / Device Role / Timing Role: High-input-impedance buffer with 3.5 mV max VOS ensuring <0.1% measurement accuracy across 3.0–4.2 V Li-ion range. Use Value: 1 µV/°C TCVOS limits temperature-induced drift to <0.05% full-scale error; 2.5 V minimum supply allows operation during brown-out conditions. |
Use Scenario: Drives telephone line interface circuitry in PCMCIA modem cards requiring robust analog signal transmission over twisted-pair lines. IC Role / Device Role / Timing Role: Low-distortion output driver (THD = 0.01%) with 26 mA sink capability for line termination and AC coupling networks. Use Value: 85 dB PSRR suppresses switching noise from card-edge power converters; RRO output ensures full compliance with ITU-T V.22bis analog line levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-voltage, low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2461IDBVR | Higher 6.4 MHz GBW but 550 µA IS; 2.5 V min supply; same SC70-5 package. | Better bandwidth for higher-frequency filtering; higher current draw reduces battery life in ultra-low-power modes. | Select TLV2461IDBVR when >5 MHz bandwidth is required and supply current budget allows ≥500 µA. |
| OPA316IDBVR | Lower 10 µV max VOS, 10 MHz GBW, 400 µA IS; same SC70-5 footprint. | Superior DC precision and speed, but higher cost and current consumption limit use in energy-harvesting or coin-cell devices. | Choose OPA316IDBVR for applications demanding <0.1% gain error and faster settling, where power is secondary to accuracy. |
Compared with TLV2461IDBVR and OPA316IDBVR, LMV821M5X offers the lowest quiescent current (220 µA) among SC70-5 op-amps with 5 MHz GBW-making it optimal for always-on, battery-sensitive portable systems where moderate precision suffices.
Availability
LMV821M5X is available at Aetrix Electronics and suitable for cellular phone audio stages, laptop touchscreen interfaces, PDA battery monitors, PCMCIA modem line drivers, and portable medical sensor front-ends requiring stable component supply and long-term manufacturability.
Supply support for LMV821M5X 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 leader specializing in analog and embedded processing technologies, with decades of expertise in precision op-amps and low-power signal chain solutions.
The LMV821M5X belongs to TI's LMV82x family of low-voltage, low-power RRO op-amps-designed specifically for portable, battery-operated consumer and industrial electronics where size, power, and rail-to-rail performance are critical.
FAQ
What is the operating temperature range for LMV821M5X?
The LMV821M5X is specified for operation from −40°C to +85°C, meeting industrial-grade requirements. It is not qualified to AEC-Q100 automotive standards-those apply only to the LMV822-N-Q1 and LMV824-N-Q1 variants. The LMV821M5X datasheet confirms this range under Recommended Operating Conditions (Section 6.3).
Does LMV821M5X support true rail-to-rail input?
No, LMV821M5X features rail-to-rail *output* (RRO) only. Its input common-mode voltage range extends to −0.3 V (below ground) and up to 4.3 V at 5 V supply, but does not reach the positive rail. True rail-to-rail input requires additional circuitry or a different device such as the OPA333 series.
Can LMV821M5X drive a 600 Ω load effectively?
Yes-LMV821M5X is explicitly characterized for 600 Ω loads: at 2.7 V supply, it delivers 2.58 V high and 0.20 V low output swing (160 mV from each rail), with sourcing/sinking capability up to 16 mA/26 mA. This meets standard line-driver and ADC-buffer requirements without external boost stages.
What is the maximum supply voltage for LMV821M5X?
The absolute maximum supply voltage (V+ − V−) for LMV821M5X is 5.5 V, per Absolute Maximum Ratings (Section 6.1). For reliable operation, TI specifies a recommended maximum of 5 V. Exceeding 5.5 V risks permanent damage, even momentarily.
Is LMV821M5X pin-compatible with other SC70-5 op-amps?
LMV821M5X uses the industry-standard 5-pin SC70 pinout (IN+, IN−, OUT, V−, V+), matching TI's TLV2461, OPA316, and many third-party low-power op-amps. However, electrical behavior-including bias current, noise, and stability-must be verified per application; pinout compatibility does not guarantee functional drop-in replacement.
LMV821M5X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 3.5 mV
- Current - Supply:
- 300µA
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV821M5X FAQ
1.How can I place an order for LMV821M5X through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV821M5X 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 LMV821M5X reliable?
The price and inventory of LMV821M5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV821M5X is usually 5 days.
3.What payment methods are accepted for LMV821M5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV821M5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV821M5X?
LMV821M5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV821M5X 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 LMV821M5X?
For technical support, including LMV821M5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV821M5X requirements.
6.How does Aetrix verify that LMV821M5X is sourced from the original manufacturer or authorized distributors?
All LMV821M5X 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 LMV821M5X meets industry standards.
7.What is the process for return or replacement of LMV821M5X?
All LMV821M5X units undergo pre-shipment inspection (PSI). If there is an issue with LMV821M5X, 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 LMV821M5X part is unused and in its original packaging.
Return procedure for LMV821M5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV821M5X Tags
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