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Texas Instruments LMV712MM/NOPB
- Part No.:
- LMV712MM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV712MM/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:837
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Product details
Overview
LMV712MM/NOPB from Texas Instruments is a dual rail-to-rail input/output operational amplifier with independent shutdown control per channel, 5-MHz gain-bandwidth product, 5 V/µs slew rate, and 20 nV/√Hz input voltage noise - designed for precision power amplifier control loops in GSM/UMTS RF front-ends.
For engineers reviewing the LMV712MM/NOPB datasheet, LMV712MM/NOPB pinout, LMV712MM/NOPB application, or LMV712MM/NOPB equivalent, this page delivers verified specifications, package mapping (10-pin VSSOP), functional pin definitions, real-world use cases in cellular PA bias control, and validated alternative options for low-voltage, low-noise dual op-amp selection.
Technical Context
The LMV712MM/NOPB integrates parallel NMOS and PMOS input stages to achieve rail-to-rail input operation across 2.7 V to 5.5 V supply, with VCM-dependent offset crossover at ~1.4 V above V−. Its folded-cascode gain stage and Class AB output stage deliver stable rail-to-rail output swing into 600 Ω loads while maintaining ≥60° phase margin.
Independent SDA and SDB pins enable per-channel shutdown with <1.5 µA typical ICC(SHDN), 2.2 µs turnon time (5 V), and glitch-free output ramping - critical for avoiding transient spikes in RF power amplifier bias control paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 5 MHz - supports closed-loop bandwidth up to ~400 kHz in unity-gain follower configuration for PA envelope tracking. |
| Slew rate | 5 V/µs - enables fast settling of dynamic PA bias signals without distortion in GSM burst-mode operation. |
| Input voltage noise | 20 nV/√Hz at 1 kHz - preserves SNR in low-level detector and feedback signal conditioning paths. |
| Supply current per channel | 1.22 mA (typ) at 2.7 V - allows dual-channel operation within tight battery-power budgets of portable handsets. |
| Shutdown current | 1.5 µA (max) per channel - reduces system standby power by >99% when PA is inactive. |
| Input offset voltage | 3 mV (max) - ensures accurate DC bias point setting for linear PA operation across temperature. |
| Rail-to-rail I/O | Operates with inputs from V− to V+ and outputs within 120 mV of rails (at 600 Ω load) - maximizes dynamic range in single-supply 2.7–5.5 V systems. |
Pinout & Package
LMV712MM/NOPB is packaged in a 10-pin VSSOP (DGS) with 3.00 mm × 3.00 mm body size and exposed thermal pad connected to V−. Pinout matches standard TI VSSOP-10 layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Channel A output | Drives PA bias node or detector feedback path; rail-to-rail swing supports full-scale control range. |
| 2 (–INA) | Channel A inverting input | Accepts feedback signal from directional coupler or PA collector/drain for closed-loop regulation. |
| 3 (+INA) | Channel A noninverting input | Receives reference voltage or envelope signal for precise bias setpoint control. |
| 4 (V−) | Negative supply | Ground reference for single-supply operation; thermal pad must be soldered to PCB ground plane. |
| 5 (SDA) | Channel A shutdown | Active-high logic input; pulls low to disable Channel A and reduce ICC to <1.5 µA. |
| 6 (SDB) | Channel B shutdown | Independent enable/disable control for second channel - enables dual-path PA control or redundancy. |
| 7 (+INB) | Channel B noninverting input | Supports secondary control loop (e.g., temperature compensation or envelope shaping). |
| 8 (–INB) | Channel B inverting input | Accepts secondary feedback (e.g., temperature-sensed voltage or auxiliary detector output). |
| 9 (OUTB) | Channel B output | Provides isolated second control output - avoids crosstalk in multi-PA or diversity antenna systems. |
| 10 (V+) | Positive supply | Accepts 2.7–5.5 V regulated supply; PSRR >70 dB minimizes supply ripple coupling into control path. |
Key Features
| Feature | Design Value |
|---|---|
| Independent per-channel shutdown | Enables selective disabling of one amplifier without affecting the other - essential for power-gated RF subsystems. |
| Glitch-free turnon | Output ramps smoothly from V− during wake-up; prevents spurious RF bursts in PA control lines. |
| 200 pF capacitive load drive | Stable in unity-gain configuration without external compensation - simplifies layout in compact RF modules. |
| VCM-dependent offset management | Crossover at 1.4 V above V− informs design of input common-mode range to avoid accuracy degradation. |
| Low 1.22 mA/channel quiescent current | Allows continuous dual-op-amp operation in battery-powered devices with >100-hour standby life. |
Applications
| Power Amplifier Bias Control | RF Envelope Detection Interface |
|---|---|
Use Scenario: Regulating DC bias current of GSM/UMTS power amplifier during TDMA burst transmission. IC Role / Device Role / Timing Role: Dual op-amp implements closed-loop feedback (Channel A) and envelope tracking (Channel B) with independent shutdown for burst gating. Use Value: 5 V/µs slew rate ensures accurate reproduction of 217-Hz GSM envelope; rail-to-rail output drives PA base/gate over full 0–VCC range. | Use Scenario: Conditioning coupled RF signal from directional coupler into DC voltage proportional to forward power. IC Role / Device Role / Timing Role: Channel A acts as precision integrator/averager; Channel B provides reference buffer and offset trimming. Use Value: 20 nV/√Hz noise floor preserves detector SNR; 5-MHz GBW supports accurate averaging of 900/1800 MHz carrier harmonics. |
| Portable Cellular Transceiver | Wireless LAN Power Management |
Use Scenario: Real-time PA gain calibration and temperature compensation in smartphone RF front-end modules. IC Role / Device Role / Timing Role: One channel monitors PA collector voltage; second channel reads thermistor network for adaptive bias adjustment. Use Value: Independent SDA/SDB pins allow synchronized shutdown during sleep mode; 2.7 V min supply enables direct LDO output interface. | Use Scenario: Dynamic output power control of 2.4 GHz WLAN PA based on link quality metrics. IC Role / Device Role / Timing Role: Dual-channel architecture separates RSSI-based setpoint generation (Channel A) from PA current sensing (Channel B). Use Value: 3 mV max VOS ensures <±0.5 dB power accuracy; 1.22 mA/channel ICC supports always-on monitoring in low-power listen modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise RRIO op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV722MM/NOPB | No shutdown pins; 10 MHz GBW; 8.5 V/µs slew rate; higher 2.1 mA/channel ICC. | Lacks per-channel disable - unsuitable for burst-mode PA control requiring zero-quiescent leakage. | Select when higher speed and no shutdown are acceptable; verify stability with same capacitive loads. |
| TLV2772IDGKR | 2.5 MHz GBW; 3.6 V/µs slew; 1.8 mA/channel ICC; no independent shutdown (global EN only). | Slower response limits fidelity in GSM envelope tracking; global enable prevents channel-selective power gating. | Choose for cost-sensitive designs where 2.5 MHz bandwidth suffices and single-enable suffices. |
Compared with LMV712MM/NOPB, LMV722MM/NOPB trades shutdown capability for higher speed, while TLV2772IDGKR offers lower cost but lacks both independent shutdown and sufficient slew rate for burst-mode RF control - making LMV712MM/NOPB uniquely suited for precision, low-power, dual-path PA bias systems.
Availability
LMV712MM/NOPB is available at Aetrix Electronics and suitable for cellular phone RF front-ends, portable transceiver modules, and wireless LAN power amplifier control circuits requiring stable component supply, guaranteed long-term availability, and automotive-grade reliability (Q1 variant available).
Supply support for LMV712MM/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 high-performance op-amps for communications infrastructure and portable electronics.
The LMV712MM/NOPB belongs to TI's low-power, rail-to-rail precision op-amp product line, engineered specifically for battery-operated RF systems demanding low noise, fast transient response, and intelligent power management via independent shutdown.
FAQ
What is the maximum capacitive load the LMV712MM/NOPB can drive stably in unity-gain configuration?
The LMV712MM/NOPB is specified to drive up to 200 pF capacitively loaded in unity-gain follower configuration without oscillation or excessive peaking. This is validated across temperature and supply voltage (2.7 V to 5.5 V) per TI's SNOS534J datasheet Figure 17–18. For loads exceeding 200 pF, TI recommends adding an isolation resistor (RISO) between the output and capacitor as shown in Figure 32.
Does the LMV712MM/NOPB support true rail-to-rail input and output operation?
Yes, the LMV712MM/NOPB supports rail-to-rail input (VCM from V− to V+) and rail-to-rail output (swing within 120 mV of V− and V+ at 600 Ω load). Input stage uses parallel NMOS/PMOS pairs with internal logic to maintain stability across the full range; output stage combines PMOS and NPN devices to achieve full excursion.
What is the typical turnon time from shutdown for the LMV712MM/NOPB at 5 V supply?
At 5 V supply and TA = 25°C, the LMV712MM/NOPB exhibits a typical turnon time of 1.6 µs from shutdown to full output functionality, with a maximum of 4 µs over temperature (−40°C to 125°C). This value applies to the VSSOP package (LMV712MM/NOPB); DSBGA variants show longer delays (6–8 µs).
How does the input offset voltage (VOS) of the LMV712MM/NOPB vary with common-mode voltage?
The LMV712MM/NOPB exhibits VCM-dependent VOS due to its dual-input-stage architecture, with a crossover point near 1.4 V above V−. As shown in Figure 3 of the datasheet, VOS shifts polarity around this point - ranging from +100 µV to −100 µV. Designs requiring high DC accuracy must avoid operating the input near this crossover region.
Is the LMV712MM/NOPB pin-compatible with other TI dual op-amps in VSSOP-10 packages?
No, the LMV712MM/NOPB has a unique pinout optimized for independent shutdown (SDA/SDB on pins 5 and 6), differing from standard dual op-amps like LMV722MM/NOPB (no shutdown pins) or TLV2772IDGKR (global EN on pin 8). PCB layout must follow the DGS package map in SNOS534J Section 5 - substitution requires board revision.
LMV712MM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 10-TFSOP, 10-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:
- 5V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5.5 pA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 1.22mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
LMV712MM/NOPB FAQ
1.How can I place an order for LMV712MM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV712MM/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 LMV712MM/NOPB reliable?
The price and inventory of LMV712MM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV712MM/NOPB is usually 5 days.
3.What payment methods are accepted for LMV712MM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV712MM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV712MM/NOPB?
LMV712MM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV712MM/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 LMV712MM/NOPB?
For technical support, including LMV712MM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV712MM/NOPB requirements.
6.How does Aetrix verify that LMV712MM/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV712MM/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 LMV712MM/NOPB meets industry standards.
7.What is the process for return or replacement of LMV712MM/NOPB?
All LMV712MM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV712MM/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 LMV712MM/NOPB part is unused and in its original packaging.
Return procedure for LMV712MM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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