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Texas Instruments LMV821M7/NOPB
- Part No.:
- LMV821M7/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV821M7/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:6,232
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Product details
Overview
LMV821M7/NOPB 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, and 220 µA quiescent current per amplifier, with input offset voltage ≤3.5 mV - optimized for battery-powered portable electronics requiring precision signal conditioning at minimal power.
For engineers reviewing the LMV821M7/NOPB datasheet, LMV821M7/NOPB pinout, LMV821M7/NOPB application, or LMV821M7/NOPB equivalent, key selection considerations include its RRO swing into 600 Ω (160 mV from rail), −40°C to +85°C industrial temperature range, 2.5–5.5 V supply operation, and compatibility with capacitive loads - critical for sensor front-ends, audio line drivers, and ADC buffer stages.
Technical Context
The LMV821M7/NOPB employs a CMOS input stage enabling rail-to-rail output swing while maintaining low input bias current (≤90 nA typical) and low input offset drift (1 µV/°C). Its internal compensation ensures stable unity-gain operation across supply voltages from 2.5 V to 5.5 V and load conditions up to 600 Ω.
Designed for single-supply operation, it supports input common-mode voltage down to −0.3 V (with respect to V−) and up to 4.3 V (at 5 V supply), enabling direct interfacing with ground-referenced sensors and microcontroller ADCs without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - supports direct connection to Li-ion battery (3.0–4.2 V) or regulated 3.3 V/5 V rails without external regulators. |
| Gain-Bandwidth Product | 5 MHz at 2.7 V - enables stable amplification of signals up to ~500 kHz at unity gain, suitable for audio band and sensor signal conditioning. |
| Slew Rate | 1.4 V/µs (min) - sufficient for 100 kHz full-scale sine wave output at 2 Vpp without distortion in low-noise applications. |
| Input Offset Voltage | ≤3.5 mV (max) - limits DC error to <0.35% of 1 V full-scale, critical for precision DC-coupled sensor interfaces. |
| Quiescent Current | 220 µA per amplifier (typical at 2.7 V) - allows integration into always-on subsystems with sub-1 µA standby budget when combined with enable control. |
| Rail-to-Rail Output | Swings within 160 mV of rails into 600 Ω - maximizes dynamic range in 3.3 V systems, delivering >2.8 Vpp output swing. |
| Common-Mode Rejection | 90 dB (typical) - suppresses supply noise and ground bounce coupling into differential inputs, improving SNR in noisy environments. |
Pinout & Package
LMV821M7/NOPB is housed in a 5-pin SC70-5 package (2.0 mm × 1.25 mm × 0.95 mm), optimized for space-constrained portable designs. Pinout matches industry-standard SC70-5 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting input | High-impedance CMOS node; accepts signals from 0.3 V below V− to 0.2 V below V+ without phase reversal. |
| 2 (IN−) | Inverting input | Differential input terminal; used with feedback network to set closed-loop gain and bandwidth. |
| 3 (V−) | Negative supply | Ground reference for single-supply operation; must be connected directly to PCB ground plane. |
| 4 (OUT) | Amplifier output | Capable of sourcing/sinking ≥12 mA; drives 600 Ω loads with <160 mV headroom to rails. |
| 5 (V+) | Positive supply | Accepts 2.5–5.5 V; decoupling capacitor (0.1 µF) required within 2 mm of this pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >95% of supply rail-to-rail voltage range into 600 Ω, preserving signal fidelity in low-voltage ADC driver and audio line-out stages. |
| Low quiescent current | 220 µA per amplifier at 2.7 V enables multi-channel sensing nodes with <1 mA total analog front-end consumption. |
| Stable with capacitive loads | Operates without oscillation into ≥100 pF loads - eliminates need for isolation resistors in LCD bias or filter buffer applications. |
| Wide supply range | 2.5–5.5 V operation supports direct interface with legacy 5 V logic, modern 3.3 V microcontrollers, and partially discharged Li-ion batteries. |
| Industrial temperature range | Specified from −40°C to +85°C - qualified for use in automotive cabin modules, industrial handhelds, and outdoor IoT edge sensors. |
Applications
| Portable Audio Line Driver | Medical Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving stereo headphone outputs or line-level signals from low-voltage codecs in Bluetooth earbuds and wearables. IC Role / Device Role / Timing Role: Single-supply buffer amplifier with rail-to-rail output to maximize dynamic range and minimize THD (<0.01% at 1 kHz). Use Value: Enables 2.8 Vpp output from 3.3 V rail without clipping, reducing need for external charge pumps or dual supplies. |
Use Scenario: Amplifying low-amplitude biopotential signals (ECG, EMG) from dry electrodes in portable diagnostic patches. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end stage with low input bias current (≤90 nA) and low offset drift (1 µV/°C). Use Value: Minimizes electrode polarization error and thermal drift, supporting accurate baseline recovery in battery-operated devices. |
| ADC Input Buffer | Smartphone Ambient Light Sensor Interface |
Use Scenario: Isolating high-impedance photodiode or thermistor networks from SAR ADC input capacitance in energy-harvesting sensor nodes. IC Role / Device Role / Timing Role: Unity-gain stable buffer with 5 MHz GBW and low output impedance to drive 10 pF+ ADC sampling capacitors without settling error. Use Value: Ensures <1 LSB error for 12-bit ADCs at 100 kSPS, even with long PCB traces between sensor and converter. |
Use Scenario: Converting photocurrent from ambient light sensors (ALS) into digitizable voltage in ultra-thin smartphone bezels. IC Role / Device Role / Timing Role: Transimpedance amplifier with rail-to-rail output and low input offset (≤3.5 mV) to resolve sub-µA photocurrents across 0–100,000 lux range. Use Value: Delivers 16-bit-equivalent resolution using only 1% tolerance feedback resistors, reducing BOM cost and calibration overhead. |
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 GBW (6.4 MHz), but larger input offset (2 mV typ, 6 mV max) and no AEC-Q100 qualification. | Preferred where higher speed is needed over ultra-low power; not suitable for automotive-grade designs requiring AEC-Q100 Grade 1 compliance. | Select TLV2461IDBVR only if >5 MHz bandwidth is required and supply current budget exceeds 400 µA. |
| MCP6001UT-E/OT | Lower supply current (100 µA), lower GBW (1 MHz), same SC70-5 package and rail-to-rail output, but higher input offset (4.5 mV max) and narrower supply range (1.8–6.0 V). | Better suited for sub-1 MHz sensor buffering where ultra-low power dominates performance requirements; lacks specified performance at 2.5 V. | Choose MCP6001UT-E/OT for cost-sensitive, non-automotive applications with <100 µA supply budget and bandwidth ≤1 MHz. |
Compared with TLV2461IDBVR and MCP6001UT-E/OT, LMV821M7/NOPB uniquely balances 5 MHz bandwidth, 220 µA supply current, 3.5 mV max offset, and AEC-Q100 qualification - making it optimal for automotive infotainment audio buffers and industrial handheld metering front-ends where both precision and reliability are mandatory.
Availability
LMV821M7/NOPB is available at Aetrix Electronics and suitable for portable audio systems, medical wearable sensors, industrial handheld meters, and smartphone ambient light interfaces requiring stable component supply across extended production lifecycles.
Supply support for LMV821M7/NOPB 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 amplifiers and low-power signal chain solutions.
The LMV82x family was designed specifically for low-voltage, low-power portable electronics - delivering rail-to-rail output performance, robust capacitive-load drive, and AEC-Q100 qualification in miniature SC70 packages for space- and power-constrained applications.
FAQ
What is the maximum operating temperature for LMV821M7/NOPB?
The LMV821M7/NOPB is specified for operation from −40°C to +85°C, meeting industrial temperature grade requirements. It is not rated for automotive Grade 1 (−40°C to +125°C) - that qualification applies only to the LMV822-Q1 and LMV824-Q1 variants, not the LMV821M7/NOPB.
Does LMV821M7/NOPB support true rail-to-rail input?
No, LMV821M7/NOPB features rail-to-rail *output* only. Its input common-mode voltage range extends to −0.3 V below V− and up to 4.3 V above V− at 5 V supply, but does not include the positive rail. For true rail-to-rail input, consider TI's TLV9001 or OPA320 families.
Can LMV821M7/NOPB drive a 100 pF capacitive load stably?
Yes, LMV821M7/NOPB is explicitly characterized for stable operation with capacitive loads up to at least 100 pF, as confirmed in the datasheet's "Stable Performance with Capacitive Loads" feature and Figure 22–25 (gain/phase margin vs. CL). No external compensation is required.
What is the typical input bias current of LMV821M7/NOPB at 25°C?
The typical input bias current of LMV821M7/NOPB is 30 nA at 25°C and 2.7 V supply, with a maximum of 90 nA over temperature (−40°C to +85°C). This low bias current minimizes voltage errors in high-impedance sensor interfaces like photodiode transimpedance amplifiers.
Is LMV821M7/NOPB pin-compatible with other SC70-5 op amps?
LMV821M7/NOPB uses the standard SC70-5 pinout (IN+, IN−, V−, OUT, V+), matching industry conventions. However, electrical characteristics (GBW, slew rate, offset) differ significantly from alternatives like MCP6001 or TLV2461 - functional substitution requires validation of loop stability and signal integrity in the target application.
LMV821M7/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
- SC-70-5
LMV821M7/NOPB FAQ
1.How can I place an order for LMV821M7/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV821M7/NOPB 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 LMV821M7/NOPB reliable?
The price and inventory of LMV821M7/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV821M7/NOPB is usually 5 days.
3.What payment methods are accepted for LMV821M7/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV821M7/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV821M7/NOPB?
LMV821M7/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV821M7/NOPB 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 LMV821M7/NOPB?
For technical support, including LMV821M7/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV821M7/NOPB requirements.
6.How does Aetrix verify that LMV821M7/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV821M7/NOPB 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 LMV821M7/NOPB meets industry standards.
7.What is the process for return or replacement of LMV821M7/NOPB?
All LMV821M7/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV821M7/NOPB, 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 LMV821M7/NOPB part is unused and in its original packaging.
Return procedure for LMV821M7/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV821M7/NOPB Tags
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