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Texas Instruments LMV722MMX/NOPB
- Part No.:
- LMV722MMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV722MMX/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,742
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Product details
Overview
LMV722MMX/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), and low-power (1.81 mA typical at 2.2 V) operational amplifier in an 8-pin VSSOP package. It delivers 10 MHz unity-gain bandwidth, 5.25 V/µs slew rate at 5 V, and ±0.135 V output swing headroom into 2 kΩ at 5 V - enabling high-fidelity signal conditioning in space-constrained battery-powered audio and sensor front-ends.
For engineers reviewing the LMV722MMX/NOPB datasheet, LMV722MMX/NOPB pinout, LMV722MMX/NOPB application, or LMV722MMX/NOPB equivalent, this page provides verified electrical parameters, VSSOP-8 terminal mapping, real-world use cases in portable electronics, and two validated alternative op amps with documented functional and packaging differences.
Technical Context
The LMV722MMX/NOPB employs a bipolar input stage with 260 nA typical input bias current and achieves rail-to-rail output swing via complementary output transistors - delivering 120 mV from either rail into 600 Ω at 2.2 V and 76 mV at 5 V. Its 10 MHz gain-bandwidth product and 67–72° phase margin ensure stable unity-gain operation even with 4700 pF capacitive loads when used in follower configuration.
Designed for single-supply systems, it features an input common-mode voltage range extending to ground (−0.3 V minimum), enabling direct sensing of near-ground signals. The device operates across −40°C to +85°C and is characterized for guaranteed performance at both 2.2 V and 5 V supply rails - critical for long-life battery applications where supply voltage decays over time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.2 V to 5.5 V - supports full operation across alkaline/NiMH battery discharge curves without brownout. |
| Unity-Gain Bandwidth | 10 MHz - enables stable amplification of audio-band signals up to 20 kHz with ≥500× gain margin. |
| Slew Rate | 5.25 V/µs at 5 V - sustains 1 VPP output at 20 kHz without slew-induced distortion in audio preamps. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - preserves SNR in low-level microphone and sensor signal chains. |
| Output Swing (2 kΩ) | 0.076 V above V− / 0.135 V below V+ at 5 V - maximizes dynamic range in 5 V single-supply systems. |
| Quiescent Current | 1.81 mA per amplifier at 2.2 V - extends runtime in always-on portable devices like cordless handsets. |
| Input Common-Mode Range | Includes ground (−0.3 V min) - allows direct DC-coupled interfacing to grounded sensors or transducers. |
Pinout & Package
VSSOP-8 (DGK) package: 2.3 mm × 2.0 mm footprint, 0.65 mm lead pitch, 1.05 mm max height - optimized for high-density PCB layouts in handheld devices.
| 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 accepting signals down to ground; bias current cancellation essential for precision DC gain stages. |
| 3 | Output (A) | Rail-to-rail output capable of sourcing/sinking ≥10 mA; drives 600 Ω loads with ≤0.215 V headroom at 5 V. |
| 4 | V− | Ground reference for single-supply operation; must be low-impedance to maintain PSRR >70 dB. |
| 5 | V+ | Positive supply rail (2.2–5.5 V); decoupling capacitor required within 1 cm to suppress high-frequency supply noise. |
| 6 | Non-Inverting Input (B) | Independent second channel input; shares same ground and supply as Channel A but has separate I/O paths. |
| 7 | Inverting Input (B) | Second channel inverting input; pin-compatible with Channel A for symmetrical dual-amplifier designs. |
| 8 | Output (B) | Second rail-to-rail output; electrically isolated from Output A - enables independent buffering or differential drive. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full 4.815 VPP output into 600 Ω at 5 V supply - eliminates need for level-shifting circuitry in low-voltage data acquisition. |
| Low input voltage noise | 9 nV/√Hz at 1 kHz - reduces integrated noise floor in 20 Hz–20 kHz audio paths to <1.5 µV RMS with 100 kΩ source impedance. |
| Guaranteed 2.2 V operation | Specified performance at 2.2 V ensures reliable function throughout entire AA/AAA battery discharge cycle (1.5 V → 0.9 V per cell). |
| Capacitive load drive | Stable with 4700 pF in unity-gain configuration - simplifies driving LCD bias networks or ADC input filters without external isolation resistors. |
| SC70/SOT-23/VSSOP package options | VSSOP-8 (DGK) variant offers 40% smaller area than SOIC-8 - saves >2.5 mm² PCB space in multi-channel portable designs. |
Applications
| Cellular & Cordless Handsets | Active Filters & Buffers |
|---|---|
|
Use Scenario: Amplifying electret microphone output in compact handset PCBs with tight power and area constraints. IC Role / Device Role / Timing Role: Dual-channel inverting preamplifier (Channel A) and headphone buffer (Channel B) sharing single 3.3 V rail. Use Value: 9 nV/√Hz noise and 10 MHz GBW preserve voice fidelity; rail-to-rail output drives 16 Ω headphones directly with minimal THD (0.001% @ 1 kHz). |
Use Scenario: Implementing 2nd-order low-pass filtering before SAR ADC sampling in portable medical sensors. IC Role / Device Role / Timing Role: Dual op amp configured as Sallen-Key filter (Channel A) and unity-gain buffer (Channel B) for anti-aliasing. Use Value: 10 MHz GBW supports filter corner frequencies up to 100 kHz; 5.25 V/µs slew rate prevents step-response overshoot on fast transients. |
| Laptops & PDAs | Battery-Powered Electronics |
|
Use Scenario: Conditioning analog sensor outputs (e.g., ambient light, temperature) in ultra-thin laptop clamshell assemblies. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end using both LMV722MMX/NOPB amplifiers for high-CMRR differential sensing. Use Value: Input common-mode range including ground enables direct connection to photodiode cathodes; 2.2 V operation extends runtime during battery-saving low-power modes. |
Use Scenario: Signal conditioning in handheld test equipment powered by two AA cells (nominal 3 V, decaying to 2.2 V). IC Role / Device Role / Timing Role: Dual op amp serving as precision reference buffer (Channel A) and transducer excitation driver (Channel B). Use Value: Guaranteed 2.2 V performance ensures accuracy remains stable across full battery life; 1.81 mA quiescent current limits total system draw to <4 mA per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise, low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV272IDR | Lower supply current (1.25 mA typ at 2.2 V) but reduced GBW (3 MHz) and higher noise (17 nV/√Hz). | Preferred for ultra-low-power sensor nodes where bandwidth <100 kHz suffices and noise floor is less critical. | Select TLV272IDR when battery life outweighs audio fidelity or high-speed filtering requirements. |
| OPA2316IDR | Higher GBW (10 MHz), lower noise (11 nV/√Hz), and rail-to-rail I/O - but higher quiescent current (1.2 mA per amp at 2.2 V) and no 2.2 V guarantee. | Suitable for precision industrial sensors requiring full rail I/O and better CMRR (100 dB), but not for end-of-battery-life operation. | Choose OPA2316IDR when input rail-to-rail capability and 100 dB CMRR are mandatory, and supply remains ≥2.7 V. |
Compared with TLV272IDR and OPA2316IDR, the LMV722MMX/NOPB uniquely guarantees full specification compliance at 2.2 V while maintaining 10 MHz bandwidth and 9 nV/√Hz noise - making it the only option among the three qualified for battery-powered audio preamplification across full discharge cycles.
Availability
LMV722MMX/NOPB is available at Aetrix Electronics and suitable for cellular handsets, active filter modules, and battery-powered medical sensors requiring stable component supply with consistent VSSOP-8 packaging and TI's 2.2 V–5.5 V operating range.
Supply support for LMV722MMX/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 over 50 years of innovation in precision amplifiers and power management ICs.
The LMV722MMX/NOPB belongs to TI's LMV72x low-voltage op amp family, engineered specifically for high-fidelity, low-power signal conditioning in portable consumer electronics where supply voltage headroom and board space are severely constrained.
FAQ
What is the maximum capacitive load the LMV722MMX/NOPB can drive without external compensation?
The LMV722MMX/NOPB is stable driving up to 4700 pF in unity-gain configuration - the most sensitive topology for capacitive loading. This capability eliminates the need for series isolation resistors when interfacing with ADC input capacitors, LCD bias networks, or long PCB traces in handheld devices. For loads exceeding 4700 pF, TI recommends adding a 10–100 Ω resistor between the output and load capacitance to restore phase margin.
Does the LMV722MMX/NOPB support true rail-to-rail input operation?
No - the LMV722MMX/NOPB features rail-to-rail *output* swing but its input common-mode voltage range extends only to ground (−0.3 V minimum) and up to V+ − 1.2 V (4.1 V max at 5 V supply). It does not accept inputs at the positive rail. For true rail-to-rail input operation, consider TI's OPA2316IDR or similar devices explicitly rated for input voltages spanning V− to V+.
What is the thermal resistance (θJA) of the LMV722MMX/NOPB in its VSSOP-8 package?
The LMV722MMX/NOPB in the DGK (VSSOP-8) package has a specified junction-to-ambient thermal resistance (θJA) of 235°C/W under standard JEDEC PCB mounting conditions. This value assumes a 2-layer board with 1 in² copper pour under the package. Actual thermal performance improves significantly with internal copper planes or thermal vias - enabling continuous operation at full 1.81 mA per amplifier up to +85°C ambient.
Can the LMV722MMX/NOPB operate from a single 2.2 V supply while maintaining specified AC performance?
Yes - the LMV722MMX/NOPB is fully characterized and guaranteed for operation at 2.2 V, including AC specifications: 10 MHz unity-gain bandwidth, 4.9 V/µs slew rate, and 9 nV/√Hz input voltage noise. This makes it uniquely suited for applications powered by partially discharged alkaline or NiMH batteries where supply voltage drops below 2.5 V, unlike many competing op amps that only specify performance at ≥2.7 V.
How does the input bias current of the LMV722MMX/NOPB affect precision DC gain accuracy?
The LMV722MMX/NOPB has a typical input bias current of 260 nA (bipolar input stage), which creates offset errors when flowing through unmatched input resistors. For example, a 100 kΩ feedback resistor introduces ~26 mV of error. To minimize this, design both inverting and non-inverting input networks with equal Thévenin-equivalent resistance - as shown in TI's Application Note Figure 26 - reducing bias-induced offset to <10 µV in well-balanced configurations.
LMV722MMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 2.01mA (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 ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMV722MMX/NOPB FAQ
1.How can I place an order for LMV722MMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV722MMX/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 LMV722MMX/NOPB reliable?
The price and inventory of LMV722MMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV722MMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV722MMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV722MMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV722MMX/NOPB?
LMV722MMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV722MMX/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 LMV722MMX/NOPB?
For technical support, including LMV722MMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV722MMX/NOPB requirements.
6.How does Aetrix verify that LMV722MMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV722MMX/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 LMV722MMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV722MMX/NOPB?
All LMV722MMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV722MMX/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 LMV722MMX/NOPB part is unused and in its original packaging.
Return procedure for LMV722MMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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