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Texas Instruments LMV821M5X-TI
- Part No.:
- LMV821M5X-TI
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV821M5X-TI.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:30,000
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Product details
Overview
LMV821M5X-TI from Texas Instruments is a single-channel, rail-to-rail output operational amplifier optimized for low-voltage (2.5 V to 5.5 V), low-power systems. It delivers 5 MHz gain-bandwidth product, 1.4 V/µs minimum slew rate, and 3.5 mV maximum input offset voltage at 2.7 V supply, enabling precision signal conditioning in space-constrained portable electronics such as cordless phones and PCMCIA modem transceivers.
For engineers reviewing the LMV821M5X-TI datasheet, LMV821M5X-TI pinout, LMV821M5X-TI application, or LMV821M5X-TI equivalent, key selection criteria include guaranteed rail-to-rail output swing into 600 Ω (2.50 V min / 0.30 V max at 2.7 V), ultra-small SC70-5 package (2.0 × 2.0 × 1.0 mm), and stable operation with capacitive loads up to 10,000 pF using isolation resistors.
Technical Context
The LMV821M5X-TI employs a CMOS input stage with ground-sensing common-mode range (−0.3 V to 4.3 V at 5 V) and achieves rail-to-rail output via complementary push-pull output transistors. Its 5 MHz unity-gain bandwidth and 61° phase margin at 2.7 V ensure stability under varying load conditions including 600 Ω resistive and 100–200 pF capacitive loads.
It operates across −40°C to +85°C with quiescent current of 220 µA per amplifier at 2.7 V, and supports single-supply configurations without external level-shifting circuitry due to its input common-mode range extending to ground and output swing within 160 mV of rails into 600 Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - enables direct integration into Li-ion battery-powered systems (single-cell) and 3.3 V logic domains. |
| Gain-Bandwidth Product | 5 MHz - supports closed-loop bandwidths up to ~400 kHz in unity-gain buffer configuration with 600 Ω load. |
| Slew Rate (min) | 1.4 V/µs - ensures ≤1.1 µs rise time for 1.5 V step signals, suitable for audio pre-amplification and sensor interface. |
| Input Offset Voltage (max) | 3.5 mV - limits DC error to <0.7% of full-scale output swing in 500 mV–4.5 V signal chains. |
| Rail-to-Rail Output Swing | Within 160 mV of rails @ 600 Ω - preserves dynamic range in low-voltage ADC driver applications. |
| Quiescent Current | 220 µA/amplifier @ 2.7 V - allows battery life extension in always-on sensor nodes and portable communication devices. |
| Input Common-Mode Range | −0.3 V to 4.3 V @ 5 V - permits direct sensing of ground-referenced signals without level-shifting circuitry. |
Pinout & Package
The LMV821M5X-TI is housed in an ultra-small SC70-5 surface-mount package (2.0 × 2.0 × 1.0 mm), optimized for high-density PCB layouts in handheld and modular designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Amplified signal node; rail-to-rail capable into 600 Ω; requires no external pull-up for basic operation but benefits from 600 Ω pull-up when driving >220 pF loads. |
| 2 (−IN) | Inverting Input | Differential input terminal; accepts signals down to −0.3 V (beyond ground) at 5 V supply; bias current ≤90 nA max limits resistor-induced offset. |
| 3 (GND) | Ground | Reference node for single-supply operation; connects to system ground plane; must be low-impedance for noise immunity. |
| 4 (+IN) | Non-Inverting Input | Differential input terminal; identical common-mode range and bias current spec as −IN; used for unity-gain follower or non-inverting amplification. |
| 5 (V+) | Positive Supply | Power input; accepts 2.5–5.5 V; decoupling capacitor (0.1 µF) required within 5 mm of pin for AC stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing into 600 Ω | Delivers 2.50 V min / 0.30 V max output at 2.7 V supply - maximizes usable signal range in 3.3 V systems interfacing to SAR ADCs. |
| Stable with heavy capacitive loads | Drives up to 10,000 pF using 20 Ω isolation resistor - eliminates need for external compensation in LCD bias or piezo driver circuits. |
| Guaranteed performance at 2.5 V, 2.7 V, and 5 V | Specified GBW ≥5 MHz and SR ≥1.4 V/µs across full supply range - simplifies design reuse across multiple voltage platforms. |
| Ultra-tiny SC70-5 package | 2.0 × 2.0 × 1.0 mm footprint - reduces board area by >50% vs. SOT23-5, critical for PCMCIA cards and hearing aid modules. |
| Input offset voltage drift | 1 µV/°C - contributes <8 µV total drift over −40°C to +85°C, enabling stable DC-coupled sensor front-ends. |
Applications
| Cordless Phone Audio Amplifier | PCMCIA Modem Line Transceiver |
|---|---|
Use Scenario: Amplifying microphone and earpiece signals in 3.3 V-powered DECT handsets with tight PCB real estate constraints. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op amp configured as non-inverting amplifier (gain = 2) and unity-gain buffer for analog audio path. Use Value: 3.5 mV max VOS prevents audible DC pop during power-up; 220 µA quiescent current extends talk-time between charges. | Use Scenario: Implementing differential receiver and transmit driver stages in PCMCIA modem cards compliant with ITU-T V.90 standards. IC Role / Device Role / Timing Role: Dual-role op amp: one unit as line receiver (differential input), second as transmit driver (low-output-impedance source). Use Value: 600 Ω output drive capability meets telephone-line impedance matching requirements; 5 MHz GBW supports >100 kHz baseband signaling. |
| Laptop Battery Monitor Interface | Portable Medical Sensor Signal Conditioning |
Use Scenario: Scaling and buffering cell voltage readings (0–4.2 V) for 12-bit internal ADC in ultrabook power management ICs. IC Role / Device Role / Timing Role: Precision unity-gain buffer with input referenced to battery ground; rejects supply ripple via 85 dB PSRR. Use Value: Rail-to-rail output ensures full 0–4.2 V range maps to ADC's 0–3.3 V input; 1 µV/°C VOS drift avoids calibration recalibration across operating temperature. | Use Scenario: Amplifying low-level biopotential signals (ECG, pulse oximetry) in battery-powered wearable monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer; provides high input impedance (>1012 Ω) and low noise (24 nV/√Hz at 1 kHz). Use Value: 28 nV/√Hz input voltage noise preserves SNR in sub-10 µV physiological signals; SC70-5 package enables miniaturized flex PCB integration. |
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 quiescent current (550 µA), wider supply range (2.7–6 V), lower GBW (6.4 MHz), same SC70-5 package. | Better for higher-speed filtering but consumes >2× more power; less suitable for multi-day battery operation. | Select TLV2461IDBVR only if >5 MHz bandwidth is required and power budget allows ≥500 µA per channel. |
| MCP6001UT-E/OT | Lower quiescent current (100 µA), lower GBW (1 MHz), same rail-to-rail I/O, SOT23-5 package (slightly larger than SC70-5). | Optimized for ultra-low-power sensor wake-up circuits but insufficient for audio or modem baseband bandwidth. | Choose MCP6001UT-E/OT for sub-100 µA standby modes where bandwidth <1 MHz suffices. |
Compared with TLV2461IDBVR and MCP6001UT-E/OT, the LMV821M5X-TI uniquely balances 5 MHz bandwidth, 220 µA quiescent current, and SC70-5 footprint-making it optimal for portable communication interfaces requiring both speed and space efficiency.
Availability
LMV821M5X-TI is available at Aetrix Electronics and suitable for cordless phone audio amplifiers, PCMCIA modem transceivers, laptop battery monitors, and portable medical sensor interfaces requiring stable component supply across industrial temperature ranges.
Supply support for LMV821M5X-TI 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 acquired National Semiconductor in 2011 and maintains full technical and manufacturing continuity for legacy precision analog products.
The LMV821M5X-TI belongs to TI's low-voltage, low-power op amp portfolio designed specifically for portable, battery-operated equipment where rail-to-rail output swing, small footprint, and microamp-level quiescent current are mandatory.
FAQ
What is the maximum capacitive load the LMV821M5X-TI can drive without oscillation?
The LMV821M5X-TI remains stable driving up to 10,000 pF when paired with a 20 Ω isolation resistor in series with the output, as verified in Figure 5 of the official datasheet. Without isolation, stability is maintained up to ~200 pF with 600 Ω parallel pull-up. Direct capacitive loading beyond 220 pF risks phase margin degradation below 61°, potentially causing ringing or oscillation in the LMV821M5X-TI output waveform.
Does the LMV821M5X-TI support true single-supply operation with input signals at ground potential?
Yes, the LMV821M5X-TI supports true single-supply operation with input common-mode voltage range extending to −0.3 V (at 5 V supply) and down to ground (0 V) across its full operating temperature range. This allows direct connection of ground-referenced sensors or DAC outputs without level-shifting circuitry, preserving accuracy in the LMV821M5X-TI signal chain.
What is the thermal resistance (θJA) of the LMV821M5X-TI in its SC70-5 package?
The LMV821M5X-TI in the SC70-5 package has a junction-to-ambient thermal resistance (θJA) of 440 °C/W under standard JEDEC test conditions (single-layer board, no copper pour). This value implies a 97°C junction temperature rise at 220 µA quiescent current and 5.5 V supply - well within the 150°C absolute maximum rating, confirming safe operation in sealed portable enclosures.
How does the LMV821M5X-TI's input offset voltage compare across supply voltages?
The LMV821M5X-TI guarantees ≤3.5 mV maximum input offset voltage at 2.5 V, 2.7 V, and 5 V supplies - confirmed in Tables 1, 3, and 5 of the datasheet. No significant supply-dependent VOS shift is specified, ensuring consistent DC accuracy whether powered from lithium coin cells (3 V) or regulated 5 V rails, a key advantage of the LMV821M5X-TI over many competing micropower op amps.
Is the LMV821M5X-TI pin-compatible with other members of the LMV82x family?
No - the LMV821M5X-TI (SC70-5, 5-pin) is not pin-compatible with dual LMV822 or quad LMV824 variants, which use SOIC-8, MSOP-8, SOIC-14, or TSSOP-14 packages. While electrical specifications are closely matched across the LMV82x family, physical pin count and layout differ fundamentally; board redesign is required when substituting LMV821M5X-TI for LMV822 or LMV824 in existing designs.
LMV821M5X-TI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 40 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 300µA
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 2.7 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-TI FAQ
1.How can I place an order for LMV821M5X-TI through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV821M5X-TI 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-TI reliable?
The price and inventory of LMV821M5X-TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV821M5X-TI is usually 5 days.
3.What payment methods are accepted for LMV821M5X-TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV821M5X-TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV821M5X-TI?
LMV821M5X-TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV821M5X-TI 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-TI?
For technical support, including LMV821M5X-TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV821M5X-TI requirements.
6.How does Aetrix verify that LMV821M5X-TI is sourced from the original manufacturer or authorized distributors?
All LMV821M5X-TI 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-TI meets industry standards.
7.What is the process for return or replacement of LMV821M5X-TI?
All LMV821M5X-TI units undergo pre-shipment inspection (PSI). If there is an issue with LMV821M5X-TI, 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-TI part is unused and in its original packaging.
Return procedure for LMV821M5X-TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV821M5X-TI Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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