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Texas Instruments LMV721M7/NOPB
- Part No.:
- LMV721M7/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV721M7/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,162
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Product details
Overview
LMV721M7/NOPB from Texas Instruments is a single-channel, rail-to-rail output operational amplifier optimized for low-voltage, low-noise, and low-power applications. It delivers 10 MHz unity-gain bandwidth, 5.25 V/µs slew rate at 5 V supply, 930 µA quiescent current at 2.2 V, 9 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing into 600 Ω - making it ideal for battery-powered microphone preamplifiers and portable audio signal conditioning.
For engineers reviewing the LMV721M7/NOPB datasheet, LMV721M7/NOPB pinout, LMV721M7/NOPB application, or LMV721M7/NOPB equivalent, key selection criteria include its guaranteed 2.2 V operation, SC70-5 package footprint (2.0 × 2.0 × 1.0 mm), input common-mode range extending to ground, and capacitive load tolerance up to 4700 pF in unity-gain configuration.
Technical Context
The LMV721M7/NOPB employs a bipolar input stage on TI's advanced submicron BiCMOS process, enabling low input bias current (260 nA typical) while maintaining high speed and low noise. Its architecture supports stable unity-gain operation with ≥67° phase margin and drives heavy resistive loads (600 Ω) and moderate capacitive loads directly without external compensation.
Designed explicitly for single-supply systems, it features an input common-mode voltage range that includes ground (−0.3 V to 4.1 V at 5 V supply) and rail-to-rail output swing (within 120 mV of either rail at 2.2 V, 600 Ω). The device operates across −40°C to +85°C and is specified over 2.2 V to 5.5 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.2 V to 5.5 V - enables full functionality across depleted battery voltages in portable systems. |
| Unity-Gain Bandwidth | 10 MHz - supports audio-band amplification (20 Hz–20 kHz) with >500× gain margin at 20 kHz. |
| Slew Rate | 5.25 V/µs at 5 V - ensures <1% THD for 1 VPP signals up to ~800 kHz in unity-gain buffer. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - critical for low-level signal integrity in microphone and sensor front-ends. |
| Quiescent Current | 0.93 mA typical at 2.2 V - extends battery life in always-on or intermittent-sampling devices. |
| Rail-to-Rail Output | Swings within 120 mV of rails at 2.2 V / 600 Ω - maximizes dynamic range in low-voltage ADC driver stages. |
| Input Common-Mode Range | Includes ground (−0.3 V to 4.1 V) - allows direct sensing of near-ground signals in single-supply configurations. |
Pinout & Package
LMV721M7/NOPB is housed in a 5-pin SC70 package (DCK0005A), measuring 2.0 mm × 2.0 mm × 1.0 mm, with moisture sensitivity level 1 (260°C reflow compatible) and lead finish Sn (RoHS compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | High-impedance differential input node; requires matched impedance to non-inverting input to minimize bias-current-induced offset. |
| 2 | Non-Inverting Input (+) | High-impedance differential input node; referenced to ground or bias network in single-supply applications. |
| 3 | Output | Capable of sourcing/sinking ≥10 mA; rail-to-rail swing enables full utilization of ADC input range. |
| 4 | Ground (V−) | Power return path; must be low-impedance and decoupled near device to maintain PSRR and stability. |
| 5 | Supply (V+) | Positive supply input; accepts 2.2–5.5 V; requires local 0.1 µF ceramic decoupling capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise bipolar input stage | 9 nV/√Hz input voltage noise at 1 kHz enables clean amplification of µV-level microphone or sensor outputs. |
| Rail-to-rail output swing | Delivers >95% of supply rail-to-rail voltage swing into 600 Ω, preserving SNR in low-voltage data acquisition paths. |
| Guaranteed 2.2 V operation | Full AC/DC specifications validated at 2.2 V supply - supports Li-ion battery discharge down to 2.5 V with margin. |
| 4700 pF capacitive load drive | Stable unity-gain operation with up to 4700 pF load eliminates need for isolation resistors in many filter and cable-drive applications. |
| SC70-5 ultra-small footprint | 2.0 × 2.0 mm body saves PCB area in space-constrained portable designs such as wearables and hearing aids. |
Applications
| Microphone Preamplifier | Portable Audio Line Driver |
|---|---|
Use Scenario: Battery-powered electret condenser microphone interface in smartphones or voice recorders. IC Role / Device Role / Timing Role: Single-supply inverting preamplifier with 34 dB gain, DC-biased at VCC/2. Use Value: Low 930 µA quiescent current extends talk-time; 9 nV/√Hz noise preserves voice clarity; rail-to-rail output maximizes ADC utilization. |
Use Scenario: Driving line-level analog audio signals between codec and headphone amplifier in tablets. IC Role / Device Role / Timing Role: Unity-gain buffer isolating DAC output from variable cable/load impedance. Use Value: 10 MHz GBW ensures flat frequency response to 20 kHz; 4700 pF capacitive load tolerance avoids instability with long traces or connectors. |
| Active Filter Stage | Single-Supply Sensor Signal Conditioning |
Use Scenario: 2nd-order low-pass filter in wearable health monitors filtering ECG or PPG signals. IC Role / Device Role / Timing Role: Active filter integrator and gain stage operating from 3.3 V supply. Use Value: Guaranteed 2.2 V performance ensures filter cutoff accuracy across full battery range; low THD (0.001%) preserves signal fidelity. |
Use Scenario: Amplifying millivolt-level thermistor or bridge sensor outputs in handheld test equipment. IC Role / Device Role / Timing Role: Precision difference amplifier with ground-referenced inputs and rail-to-rail output. Use Value: Input CMVR including ground enables direct connection to grounded sensors; 3.5 mV max VOS limits measurement error in 12-bit systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, low-voltage op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV721M5/NOPB | SOT-23-5 package (2.9 × 1.6 × 1.1 mm); higher thermal resistance (265°C/W vs. 440°C/W); identical electrical specs. | Better power dissipation in high ambient or continuous-output applications; larger footprint than SC70. | Select LMV721M5/NOPB when board layout allows larger pad area and thermal management is prioritized over miniaturization. |
| TLV9001IDBVR | Rail-to-rail I/O; lower quiescent current (65 µA); lower bandwidth (1 MHz); CMOS input (0.5 pA IB vs. 260 nA). | Superior for ultra-low-power sensor nodes; insufficient for audio-band or fast settling requirements. | Choose TLV9001IDBVR only for sub-100 kHz, nanoamp-bias, battery-life-critical applications where 10 MHz bandwidth is unnecessary. |
Compared with LMV721M7/NOPB, LMV721M5/NOPB offers identical performance in a thermally superior but larger SOT-23 package, while TLV9001IDBVR trades bandwidth and drive strength for extreme power savings - making LMV721M7/NOPB the optimal balance for space-constrained, audio-capable, low-voltage analog signal chains.
Availability
LMV721M7/NOPB is available at Aetrix Electronics and suitable for battery-powered electronics, portable audio interfaces, and space-constrained sensor signal conditioning requiring stable component supply and consistent SC70-5 packaging.
Supply support for LMV721M7/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 delivering analog and embedded processing solutions, with over 50 years of innovation in precision amplifiers and low-power signal chain components.
The LMV721-N series belongs to TI's low-voltage, low-noise op amp product line, engineered specifically for portable, battery-operated systems demanding rail-to-rail operation, small size, and robust performance from 2.2 V supplies.
FAQ
What is the maximum capacitive load the LMV721M7/NOPB can drive stably in unity-gain configuration?
The LMV721M7/NOPB can directly drive up to 4700 pF in unity-gain follower configuration without oscillation or excessive peaking, as verified in TI's SNOS414I datasheet Figure 23 and associated application notes. This eliminates the need for isolation resistors in many filter, cable, or ADC input buffering applications - though heavier loads require the RC isolation network shown in Figure 23 for stability.
Does the LMV721M7/NOPB support true single-supply operation with input signals near ground?
Yes, the LMV721M7/NOPB supports true single-supply operation: its input common-mode voltage range includes ground (−0.3 V to 4.1 V at 5 V supply), allowing direct connection of grounded sensors or microphone bias networks. This is confirmed in the "Input Common-Mode Voltage Range" specification and Application Note section of the SNOS414I datasheet.
What is the typical quiescent current of the LMV721M7/NOPB at 2.2 V supply?
The LMV721M7/NOPB draws 0.93 mA typical quiescent current at 2.2 V supply, with a maximum of 1.5 mA across temperature and process variation. This value is specified in the "2.2V DC Electrical Characteristics" table (IS parameter) of the SNOS414I datasheet and enables extended battery life in always-on portable devices.
Is the LMV721M7/NOPB pin-compatible with other SC70-5 op amps like the OPA344 or MCP6001?
No - the LMV721M7/NOPB uses TI's standard SC70-5 pinout (V+, In−, In+, Output, GND), but OPA344 and MCP6001 follow different pin assignments (e.g., OPA344 places GND on Pin 2). Always verify pin functions using the respective datasheets; LMV721M7/NOPB is not a drop-in replacement for those parts without PCB redesign.
What is the input voltage noise density of the LMV721M7/NOPB at 1 kHz, and how does it compare to similar low-power op amps?
The LMV721M7/NOPB has a typical input voltage noise density of 9 nV/√Hz at 1 kHz, as measured per the SNOS414I datasheet. This is significantly lower than CMOS alternatives like TLV9001 (25 nV/√Hz) and competitive with higher-power bipolar op amps - making it among the lowest-noise options in its 1 mA quiescent current class.
LMV721M7/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:
- 5.25V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 260 nA
- Voltage - Input Offset:
- 80 µV
- Current - Supply:
- 1.03mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.2 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
LMV721M7/NOPB FAQ
1.How can I place an order for LMV721M7/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV721M7/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 LMV721M7/NOPB reliable?
The price and inventory of LMV721M7/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV721M7/NOPB is usually 5 days.
3.What payment methods are accepted for LMV721M7/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV721M7/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV721M7/NOPB?
LMV721M7/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV721M7/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 LMV721M7/NOPB?
For technical support, including LMV721M7/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV721M7/NOPB requirements.
6.How does Aetrix verify that LMV721M7/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV721M7/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 LMV721M7/NOPB meets industry standards.
7.What is the process for return or replacement of LMV721M7/NOPB?
All LMV721M7/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV721M7/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 LMV721M7/NOPB part is unused and in its original packaging.
Return procedure for LMV721M7/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV721M7/NOPB Tags
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