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Texas Instruments LMV722IDR
- Part No.:
- LMV722IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV722IDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,437
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Product details
Overview
LMV722IDR from Texas Instruments is a dual low-noise, low-voltage, rail-to-rail output operational amplifier in an 8-pin SOIC package. It operates from 2.2 V to 5.5 V, delivers 10 MHz gain-bandwidth, 5.25 V/µs slew rate at 5 V, and draws only 2.4 mA total supply current (1.2 mA per amplifier) at 5 V. It is used in battery-powered audio preamps, portable sensor signal conditioning, and active filter stages where low power and wide dynamic range are critical.
For engineers reviewing the LMV722IDR datasheet, LMV722IDR pinout, LMV722IDR application, or LMV722IDR equivalent, this page provides verified pin functions, real-world design meaning of key specs (e.g., 9 nV/√Hz input voltage noise at 1 kHz, ±0.3 V to 4.1 V input common-mode range), and two validated alternative parts for low-voltage dual op-amp selection.
Technical Context
The LMV722IDR implements a CMOS input stage with rail-to-rail output swing into 2-kΩ loads (≤50 mV from rails at 2.2 V). Its internal architecture supports stable unity-gain operation with 67.4° phase margin at 2.2 V and 72° at 5 V, enabling robust performance in active filters and closed-loop buffers without external compensation.
It features input bias current of 260 nA (typ), input offset voltage ≤3.5 mV over –40°C to 105°C, and PSRR of 90 dB (typ) at 5 V - making it suitable for precision DC-coupled sensing in noisy, low-supply environments such as handheld medical devices and industrial IoT nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.2 V to 5.5 V - enables direct use with single-cell Li-ion (3.0–4.2 V) or two-cell alkaline (2.4–3.2 V) systems without regulation. |
| Gain-Bandwidth Product | 10 MHz - supports stable 10× gain up to 1 MHz or unity-gain buffer operation up to 10 MHz for audio and sensor signal bandwidths. |
| Slew Rate | 5.25 V/µs at 5 V - allows clean 1-Vpp output at 500 kHz without slewing distortion in active filter or driver applications. |
| Input Voltage Noise | 8.5 nV/√Hz at 1 kHz - ensures minimal added noise in microphone preamplifiers and strain-gauge interfaces where signal levels are sub-mV. |
| Input Common-Mode Range | –0.3 V to 4.1 V at 5 V - includes ground and extends beyond VCC−, enabling direct connection to single-supply transducer outputs. |
| Rail-to-Rail Output Swing | Within 50 mV of rails into 2-kΩ at 2.2 V - maximizes dynamic range in low-voltage ADC driver stages, preserving >95% of full-scale resolution. |
| Quiescent Current | 2.4 mA total (1.2 mA per amp) at 5 V - supports always-on sensor front-ends in energy-constrained edge nodes with multi-day battery life. |
Pinout & Package
LMV722IDR is housed in an 8-pin SOIC (D) package, 3.91 mm × 4.9 mm, 1.75 mm max height, RoHS-compliant, NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN− | Inverting input of Channel 1 - connects to feedback network in standard inverting amplifier or summing configuration. |
| 2 | 1IN+ | Non-inverting input of Channel 1 - accepts high-impedance sensor or reference signals; includes ground in common-mode range. |
| 3 | VCC− | Negative supply rail (GND in single-supply use) - must be low-impedance; decoupling capacitor required within 1 cm. |
| 4 | 2IN− | Inverting input of Channel 2 - electrically isolated from Channel 1; supports independent dual-path signal processing. |
| 5 | 2IN+ | Non-inverting input of Channel 2 - shares same input specs as Pin 2; usable for differential pair or dual-channel buffering. |
| 6 | 2OUT | Output of Channel 2 - rail-to-rail capable; drives 600 Ω loads to within 120 mV of rails at 2.2 V. |
| 7 | 1OUT | Output of Channel 1 - identical drive capability to Pin 6; layout symmetry recommended for matched channel performance. |
| 8 | VCC+ | Positive supply rail - accepts 2.2–5.5 V; requires local 0.1 µF ceramic decoupling to VCC−. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise input stage | 8.5 nV/√Hz at 1 kHz enables <1 µVrms integrated noise in 20 kHz audio band - critical for electret mic preamps. |
| Rail-to-rail output | Swings to within 50 mV of either rail into 2-kΩ at 5 V - preserves full ADC input range without level-shifting circuitry. |
| Wide input common-mode range | Includes ground and extends to VCC+ − 0.9 V - allows direct interfacing with 0–VCC sensors (e.g., thermistors, bridge outputs). |
| Stable unity-gain operation | 67.4° phase margin at 2.2 V ensures no peaking or oscillation in buffer configurations without added compensation. |
| Low quiescent current | 2.4 mA total supply current at 5 V - reduces thermal load and extends battery life in portable instrumentation. |
Applications
| Portable Audio Preamp | Industrial Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying output of electret condenser microphone in Bluetooth headset or voice recorder. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier: Channel 1 for mic bias and AC coupling, Channel 2 for gain and filtering. Use Value: 9 nV/√Hz input noise and rail-to-rail output preserve SNR >90 dB(A) across 20 Hz–20 kHz while operating from 3.3 V. | Use Scenario: Conditioning output of 350 Ω strain gauge bridge in handheld torque wrench. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end (dual op-amp configured as diff-amp + gain stage). Use Value: Input offset ≤3.5 mV and 260 nA bias current minimize zero-drift errors; 2.2 V min supply enables direct use with low-power MCU ADC reference. |
| Active Filter for Wearables | Battery-Powered Medical Monitor |
Use Scenario: 2nd-order Sallen-Key low-pass filter (fc = 100 Hz) in ECG electrode interface. IC Role / Device Role / Timing Role: Dual op-amp implementing filter topology: one section as integrator, second as gain/buffer. Use Value: 10 MHz GBW ensures filter response accuracy to 10× fc; 5.25 V/µs slew rate prevents distortion on R-wave peaks. | Use Scenario: Pulse oximeter analog front-end amplifying photodiode current via transimpedance stage. IC Role / Device Role / Timing Role: Dual op-amp: Channel 1 as TIA, Channel 2 as DC-blocking AC amplifier and anti-aliasing filter. Use Value: 0.2 pA/√Hz input current noise minimizes shot-noise contribution; 2.4 mA total ICC supports 72-hour operation on CR2032 cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV722IDGKR | VSSOP-8 (2.3 mm × 2.0 mm) vs SOIC-8 (4.9 mm × 3.9 mm); identical electrical specs and pinout. | Used where PCB area is constrained (e.g., hearing aids, smart patches); requires finer-pitch assembly. | Select when board space is premium and reflow process supports 0.65 mm pitch; same schematic and layout logic apply. |
| TLV272IDR | Lower GBW (3 MHz), higher supply current (1.25 mA/amp), wider offset range (±5 mV), but same SOIC-8 package and rail-to-rail output. | Suitable for lower-bandwidth sensor buffers (e.g., temperature, humidity) where cost sensitivity outweighs speed/noise needs. | Choose for cost-optimized designs with <100 kHz signal bandwidth and relaxed noise requirements (<20 nV/√Hz acceptable). |
Compared with LMV722IDGKR and TLV272IDR, the LMV722IDR offers the optimal balance of 10 MHz bandwidth, 8.5 nV/√Hz noise, and SOIC-8 manufacturability - making it preferred for portable audio and precision biomedical signal chains where performance and assembly yield are both critical.
Availability
LMV722IDR is available at Aetrix Electronics and suitable for portable medical monitors, battery-powered test equipment, and wireless sensor nodes requiring stable component supply across extended production lifecycles.
Supply support for LMV722IDR 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 emphasis on reliability, efficiency, and system-level integration.
The LMV722IDR belongs to TI's low-voltage precision op-amp product line, engineered specifically for battery-operated instrumentation, portable audio, and industrial sensing applications demanding rail-to-rail operation and low noise below 10 nV/√Hz.
FAQ
What is the maximum operating junction temperature for LMV722IDR?
The LMV722IDR has a specified operating virtual-junction temperature range of –40°C to 105°C. This rating is validated per JEDEC standards and applies across the full 2.2 V to 5.5 V supply range. The SOIC-8 package exhibits a thermal impedance (θJA) of 97°C/W, so proper PCB copper pour and thermal vias are recommended to maintain safe junction temperatures under continuous 2.4 mA supply current operation.
Does LMV722IDR support true rail-to-rail input?
No, LMV722IDR does not support rail-to-rail input. Its input common-mode voltage range extends from –0.3 V to VCC+ – 0.9 V (e.g., –0.3 V to 4.1 V at 5 V), which includes ground but does not reach the positive rail. However, it does provide rail-to-rail output swing - within 50 mV of either rail into 2-kΩ at 5 V - making it ideal for single-supply systems where output headroom is critical but input signals remain referenced near ground.
Can LMV722IDR drive a 600 Ω load effectively?
Yes, LMV722IDR can drive a 600 Ω load with defined performance: at 2.2 V supply, its output swings to within 120 mV of either rail; at 5 V, it achieves ≤135 mV from rails. It delivers ±20 mA sourcing/sinking current (min) under these conditions, supporting standard line-driver and headphone-buffer applications. For sustained 600 Ω loading, ensure adequate PCB thermal relief and local 0.1 µF + 1 µF decoupling at VCC+ and VCC− pins.
Is LMV722IDR qualified for automotive applications?
No, the LMV722IDR is not automotive-qualified. It is rated for industrial temperature range (–40°C to 105°C) and carries no AEC-Q100 qualification. For automotive use, TI offers the LMV722-Q1 - a functionally identical dual op-amp in the same SOIC-8 package but fully qualified to AEC-Q100 Grade 1 (–40°C to 125°C) with enhanced reliability testing and traceability. LMV722IDR should not be deployed in safety-critical or engine-bay environments.
What is the typical input offset voltage drift of LMV722IDR over temperature?
The LMV722IDR has a typical input offset voltage average drift (TCVIO) of 0.6 µV/°C. This value is measured over the full –40°C to 105°C operating range and reflects long-term stability under thermal cycling. Combined with a max offset of 3.5 mV over temperature, this low drift ensures minimal baseline error accumulation in DC-coupled sensor interfaces - such as thermopile amplifiers or precision current-sense circuits - where calibration intervals exceed 12 months.
LMV722IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- 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-SOIC
LMV722IDR FAQ
1.How can I place an order for LMV722IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV722IDR 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 LMV722IDR reliable?
The price and inventory of LMV722IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV722IDR is usually 5 days.
3.What payment methods are accepted for LMV722IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV722IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV722IDR?
LMV722IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV722IDR 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 LMV722IDR?
For technical support, including LMV722IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV722IDR requirements.
6.How does Aetrix verify that LMV722IDR is sourced from the original manufacturer or authorized distributors?
All LMV722IDR 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 LMV722IDR meets industry standards.
7.What is the process for return or replacement of LMV722IDR?
All LMV722IDR units undergo pre-shipment inspection (PSI). If there is an issue with LMV722IDR, 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 LMV722IDR part is unused and in its original packaging.
Return procedure for LMV722IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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