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Texas Instruments LMV722LD/NOPB
- Part No.:
- LMV722LD/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LMV722LD/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,756
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Product details
Overview
LMV722LD/NOPB from Texas Instruments is a dual, rail-to-rail output, low-noise (9 nV/√Hz @ 1 kHz), low-voltage (2.2 V to 5.5 V) operational amplifier with 10 MHz unity-gain bandwidth and 5.25 V/µs slew rate at 5 V supply. It delivers 930 µA/amplifier quiescent current at 2.2 V and supports heavy loads (600 Ω) with output swing within 120 mV of either rail - ideal for battery-powered microphone preamplifiers and portable active filters.
For engineers reviewing the LMV722LD/NOPB datasheet, LMV722LD/NOPB pinout, LMV722LD/NOPB application, or LMV722LD/NOPB equivalent, this page provides verified technical context, package-validated pin functions, real-world application mappings, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The LMV722LD/NOPB employs a bipolar input stage enabling low input bias current (260 nA typical) and low voltage noise, while its BiCMOS process ensures stable operation down to 2.2 V supply. It features rail-to-rail output swing into 600 Ω and 2 kΩ loads, with input common-mode range extending to ground - critical for single-supply signal conditioning.
Its 10 MHz gain-bandwidth product and 67–72° phase margin support stable unity-gain buffer and active filter configurations. Capacitive load tolerance reaches 4700 pF in unity-gain, and it maintains >70 dB CMRR and PSRR across 2.2–5.5 V supply range - confirming suitability for precision, low-power analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.2 V to 5.5 V - enables full functionality across depleted lithium coin-cell and regulated 3.3 V/5 V rails. |
| 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 - delivers 1 VPP @ 20 kHz with <0.001% THD into 600 Ω. |
| Input Voltage Noise | 9 nV/√Hz @ 1 kHz - preserves SNR in low-level sensor and microphone preamp stages. |
| Quiescent Current | 1.81 mA (dual) at 2.2 V - extends runtime in always-on wearable and IoT edge nodes. |
| Rail-to-Rail Output | Swings to within 120 mV of either rail @ 600 Ω - maximizes dynamic range in 2.2–3.3 V systems. |
| Input Common-Mode Range | Includes ground (−0.3 V to 4.1 V @ 5 V) - allows direct DC-coupled sensing at 0 V reference. |
Pinout & Package
LMV722LD/NOPB is packaged in an 8-pin VSSOP (DGK) with 0.65 mm pitch, 2.3 mm × 2.0 mm footprint, and 1.0 mm max height - optimized for space-constrained portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (A) | High-impedance node for feedback network connection; requires matched impedance to non-inverting input to minimize bias-current error. |
| 2 | Non-Inverting Input (A) | DC-coupled input capable of operating at ground potential; used for single-supply sensor interface and reference-biased amplifiers. |
| 3 | Output (A) | Capable of sourcing/sinking ≥10 mA into 600 Ω; rail-to-rail swing enables full utilization of ADC input range. |
| 4 | V− (GND) | Ground reference for dual-supply operation or system ground in single-supply designs; must be low-impedance. |
| 5 | Non-Inverting Input (B) | Independent second channel input; shares same ground and supply rails as Channel A - no crosstalk penalty. |
| 6 | Inverting Input (B) | Second channel feedback node; supports independent gain configuration without shared passive components. |
| 7 | Output (B) | Second fully buffered output; drives separate loads (e.g., stereo audio paths or dual-sensor channels). |
| 8 | V+ | Positive supply rail (2.2–5.5 V); decoupling capacitor (0.1 µF) required within 2 mm of pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise bipolar input stage | 9 nV/√Hz @ 1 kHz and 260 nA input bias current - balances noise performance with DC precision for sensor interfaces. |
| Rail-to-rail output into 600 Ω | Swings to within 120 mV of supply rails at 2.2 V - preserves >95% of theoretical dynamic range in ultra-low-voltage systems. |
| Guaranteed 2.2 V operation | Full AC/DC specs validated at 2.2 V - eliminates design uncertainty during battery discharge from 3.0 V to 2.2 V cutoff. |
| 4700 pF capacitive load drive | Stable unity-gain operation with 4700 pF directly on output - simplifies LCD biasing, DAC buffering, and cable driving. |
| SC70/SOT-23/VSSOP package options | VSSOP-8 (DGK) footprint matches industry-standard 2.3 × 2.0 mm layout - enables drop-in replacement in space-limited designs. |
Applications
| Microphone Preamplifier | Active Low-Pass Filter |
|---|---|
|
Use Scenario: Battery-powered electret microphone signal conditioning in wireless headsets and voice-controlled wearables. IC Role / Device Role / Timing Role: Dual-channel inverting preamplifier (Channel A) with gain = 50 (34 dB), biased at VCC/2 for single-supply operation. Use Value: 9 nV/√Hz input noise preserves speech SNR; 1.81 mA total quiescent current extends coin-cell life beyond 12 months. |
Use Scenario: Anti-aliasing and tone-shaping filter in portable audio codecs and digital multimeters. IC Role / Device Role / Timing Role: Single-op-amp Sallen-Key low-pass topology with fc = 5 kHz, using Channel B for unity-gain buffer post-filter. Use Value: 10 MHz GBW ensures ≤0.1 dB passband ripple up to 1 kHz; rail-to-rail output drives 10-bit ADC input without level-shifting. |
| Laptop Touchpad Sensor Interface | Portable Medical ECG Front-End |
|
Use Scenario: Amplifying weak capacitive-sense signals from touchpad electrodes in ultrabooks and 2-in-1 tablets. IC Role / Device Role / Timing Role: High-input-impedance non-inverting amplifier (Channel A) with gain = 10, referenced to mid-supply. Use Value: Input common-mode range including ground enables direct electrode coupling; 260 nA bias current minimizes offset drift on high-Z sensors. |
Use Scenario: First-stage instrumentation amplifier gain block in handheld ECG monitors with dry-electrode inputs. IC Role / Device Role / Timing Role: Dual op-amp section of three-op-amp IA (Figure 28), providing differential gain and rail-to-rail output swing. Use Value: 70+ dB CMRR over temperature ensures rejection of 50/60 Hz mains interference; low 2.2 V operation aligns with medical-grade LDO outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV722MM/NOPB | Identical electrical specs and VSSOP-8 (DGK) package; same pinout and marking "V722". | No functional difference - identical use cases and layout compatibility. | Select LMV722MM/NOPB when reel quantity (1000 pcs) or tape-and-reel logistics match production requirements. |
| TLV272IDR | Lower GBW (3 MHz), higher noise (17 nV/√Hz), but lower IQ (550 µA/channel @ 2.7 V); SOIC-8 only. | Suitable for sub-audio monitoring (e.g., smoke detector CO sensing) where bandwidth <100 kHz suffices. | Choose TLV272IDR only if power budget is tighter than 1.8 mA and bandwidth demand is ≤100 kHz. |
Compared with LMV722LD/NOPB, LMV722MM/NOPB offers identical performance and form factor, while TLV272IDR trades bandwidth and noise for lower quiescent current - making the former a true functional match and the latter a power-optimized alternative for less demanding signal chains.
Availability
LMV722LD/NOPB is available at Aetrix Electronics and suitable for battery-powered microphones, portable active filters, laptop touchpad interfaces, and handheld medical ECG front-ends requiring stable component supply across extended product lifecycles.
Supply support for LMV722LD/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 op amps and low-power signal chain solutions.
The LMV722LD/NOPB belongs to TI's LMV72x low-voltage, low-noise op amp family - engineered specifically for space- and power-constrained portable electronics operating from 2.2 V to 5.5 V.
FAQ
What is the maximum capacitive load the LMV722LD/NOPB can drive without external compensation?
The LMV722LD/NOPB can directly drive up to 4700 pF in unity-gain configuration without oscillation - verified per TI's application note SNOS414I. This capability simplifies buffering for LCD bias networks, DAC outputs, and long-trace interconnects. For loads exceeding 4700 pF, TI recommends adding a series isolation resistor (e.g., 100 Ω) between the LMV722LD/NOPB output and the capacitive load to restore phase margin. The LMV722LD/NOPB's robust stability under heavy capacitive loading reduces need for external compensation components in portable designs.
Does the LMV722LD/NOPB support true single-supply operation with input signals at ground potential?
Yes - the LMV722LD/NOPB features an input common-mode voltage range that includes ground (−0.3 V to 4.1 V at 5 V supply), enabling direct DC-coupled interfacing with 0 V-referenced sensors like thermistors, bridge transducers, and electret microphones. Its bipolar input stage ensures stable bias current behavior near ground, and the rail-to-rail output allows full-swing signal delivery even when powered from 2.2 V. This makes the LMV722LD/NOPB suitable for true single-supply systems without level-shifting circuitry.
What is the guaranteed minimum output current capability of the LMV722LD/NOPB at 2.2 V supply?
At 2.2 V supply, the LMV722LD/NOPB guarantees ≥10 mA sourcing and sinking capability (per channel) under specified test conditions (VO = 0 V or 2.2 V, VIN(diff) = ±0.5 V). This is confirmed in the 2.2 V DC Electrical Characteristics table (page 2 of SNOS414I). The device maintains this drive strength while consuming only 930 µA per amplifier - delivering exceptional current efficiency for its class. This output drive supports direct interfacing with 10-bit SAR ADCs and LED indicators in ultra-low-voltage systems.
How does the LMV722LD/NOPB's noise performance compare between 2.2 V and 5 V supply conditions?
The LMV722LD/NOPB maintains consistent low-noise performance across its supply range: input voltage noise is 9 nV/√Hz at 1 kHz with 2.2 V supply and 8.5 nV/√Hz at 1 kHz with 5 V supply. This minimal variation confirms that its bipolar input stage delivers stable noise characteristics regardless of supply voltage - critical for battery-powered systems where supply drops from 3.3 V to 2.2 V. The LMV722LD/NOPB's noise floor remains effective for microphone preamps and sensor amplifiers throughout full battery discharge.
Is the LMV722LD/NOPB pin-compatible with other dual op amps in VSSOP-8 packaging?
The LMV722LD/NOPB uses standard VSSOP-8 (DGK) pinout: Pin 1 = Inverting Input (A), Pin 2 = Non-Inverting Input (A), Pin 3 = Output (A), Pin 4 = GND, Pin 5 = Non-Inverting Input (B), Pin 6 = Inverting Input (B), Pin 7 = Output (B), Pin 8 = V+. This matches industry-standard dual op amp pinouts (e.g., TLV272, MCP6022), enabling layout reuse. However, electrical differences (GBW, noise, IQ) require validation - the LMV722LD/NOPB is not a drop-in replacement for all VSSOP-8 dual op amps without circuit review.
LMV722LD/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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:
- 1.81mA (x2 Channels)
- Current - Output / Channel:
- 52.6 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 105°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (3x2.5)
LMV722LD/NOPB FAQ
1.How can I place an order for LMV722LD/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV722LD/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 LMV722LD/NOPB reliable?
The price and inventory of LMV722LD/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV722LD/NOPB is usually 5 days.
3.What payment methods are accepted for LMV722LD/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV722LD/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV722LD/NOPB?
LMV722LD/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV722LD/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 LMV722LD/NOPB?
For technical support, including LMV722LD/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV722LD/NOPB requirements.
6.How does Aetrix verify that LMV722LD/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV722LD/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 LMV722LD/NOPB meets industry standards.
7.What is the process for return or replacement of LMV722LD/NOPB?
All LMV722LD/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV722LD/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 LMV722LD/NOPB part is unused and in its original packaging.
Return procedure for LMV722LD/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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