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Texas Instruments LMP7709MT/NOPB
- Part No.:
- LMP7709MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMP7709MT/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:276
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Product details
Overview
LMP7709MT/NOPB from Texas Instruments is a quad-channel, decompensated, rail-to-rail input/output precision operational amplifier with CMOS input stage, ±220 µV max input offset voltage, 2.9 mA supply current per channel, 14 MHz gain bandwidth product at AV = 10, and operation across 2.7 V to 12 V supply range. It targets high-accuracy sensor interface circuits requiring ultra-low bias current and wide dynamic range in battery-powered instrumentation.
For engineers reviewing the LMP7709MT/NOPB datasheet, LMP7709MT/NOPB pinout, LMP7709MT/NOPB application, or LMP7709MT/NOPB equivalent, this page delivers verified specifications, package mapping, real-world use scenarios, and validated alternative options for precision analog signal conditioning designs.
Technical Context
The LMP7709MT/NOPB uses VIP50 CMOS process technology to achieve simultaneous rail-to-rail input common-mode range (−0.2 V to VS + 0.2 V), output swing within 40 mV of rails, and guaranteed stability at closed-loop gains ≥6. Its input stage features matched NMOS/PMOS trimming to suppress CMRR glitches near supply rails.
This decompensated architecture delivers 5.6 V/µs slew rate and 130 dB open-loop gain while maintaining only 2.9 mA per channel quiescent current - enabling high-speed precision amplification without sacrificing power efficiency in multi-channel systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad - enables compact 4-channel signal conditioning on single IC, reducing board area vs. discrete op-amp solutions. |
| Input Offset Voltage (max) | ±220 µV over −40°C to +125°C - ensures ≤0.044% gain error in 5 V full-scale instrumentation amplifier front-ends. |
| Input Bias Current (typ) | ±200 fA at 25°C - supports >1012 Ω sensor source impedances without measurable DC error. |
| Gain Bandwidth Product | 14 MHz at AV = 10 - provides stable 1.4 MHz small-signal bandwidth for 10× gain configurations. |
| Rail-to-Rail I/O | Input CMVR: −0.2 V to VS + 0.2 V; Output swing: within 40 mV of rails - maximizes usable dynamic range in low-voltage (e.g., 3.3 V) systems. |
| Supply Range | 2.7 V to 12 V - operates directly from single Li-ion, dual AA, or industrial 5 V/12 V rails without regulation. |
| Quiescent Current | 2.9 mA per channel - total 11.6 mA for all four channels, suitable for always-on portable instrumentation. |
Pinout & Package
Package: 14-pin TSSOP (PW package), 5.0 mm × 4.4 mm × 1.2 mm body, 0.65 mm pitch - optimized for high-density PCB layouts in space-constrained portable equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Inverting Input (−) | Four independent inverting inputs - each accepts differential or single-ended signals with rail-to-rail common-mode range. |
| 2, 6, 10, 14 | Non-Inverting Input (+) | Four independent non-inverting inputs - matched to inverting inputs for precision differential gain stages. |
| 3, 7, 11, 12 | Output | Four buffered outputs - each drives ≥10 kΩ load to within 40 mV of supply rails at room temperature. |
| 4 | V− | Negative supply rail - referenced to system ground in single-supply operation or −VS in split-supply mode. |
| 8 | V+ | Positive supply rail - accepts 2.7 V to 12 V; decoupling capacitor required at pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| CMOS input with ±200 fA bias current | Enables direct interfacing with high-impedance pH electrodes, piezoresistive sensors, and photodiode transimpedance nodes without guard rings or leakage compensation. |
| Trimmed complementary input stage | Reduces CMRR degradation near supply rails - maintains >120 dB CMRR at VCM = 0.1 V and VS − 0.1 V, critical for ratiometric sensor bridges. |
| Stable at G ≥ 6 | Allows fixed-gain configurations (e.g., G = 10) without external compensation - simplifies layout and eliminates tuning components. |
| 9 nV/√Hz input voltage noise | Supports sub-µV signal amplification in 1 kHz–10 kHz bandwidths - e.g., ECG front-end preamplifiers with SNR > 85 dB. |
| −40°C to +125°C operating range | Qualified for automotive cabin modules, industrial process controllers, and downhole sensor electronics without derating. |
Applications
| High-Impedance Sensor Interface | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Amplifying output of 100 MΩ pH electrode in handheld water quality meter powered by two AAA cells. IC Role / Device Role / Timing Role: First-stage transimpedance and buffer amplifier with rail-to-rail input to capture full electrode voltage swing (0–1.5 V) at 3.3 V supply. Use Value: ±220 µV max offset contributes <0.07% error in 1.5 V measurement; 200 fA bias current prevents electrode polarization drift during continuous monitoring. |
Use Scenario: Signal conditioning for thermistor-based temperature logger operating 5 years on CR2032 coin cell. IC Role / Device Role / Timing Role: Quad-channel gain/offset adjustment for four sensor inputs (temp, humidity, pressure, VOC), sharing single 3.0 V supply. Use Value: 2.9 mA per channel enables active sampling every 10 s while maintaining >2-year battery life; rail-to-rail output drives ADC reference directly. |
| DAC Buffer | Active Filters |
Use Scenario: Buffering 16-bit DAC output in programmable current source for LED driver calibration. IC Role / Device Role / Timing Role: Unity-gain voltage follower isolating DAC from variable load impedance while preserving 0.0015% LSB accuracy. Use Value: 130 dB open-loop gain ensures <0.0008% gain error; 40 mV output headroom allows full 0–5 V swing into 1 kΩ load. |
Use Scenario: 4th-order low-pass filter in portable audio codec rejecting >20 kHz noise before ADC sampling. IC Role / Device Role / Timing Role: Two LMP7709MT/NOPB channels configured as Sallen-Key stages (G = 2 each), cascaded for steep roll-off. Use Value: 14 MHz GBWP supports 100 kHz cutoff with <0.1 dB passband ripple; matched quad topology minimizes inter-stage gain mismatch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188AIDR | Single-supply, zero-drift architecture; 0.003 µV/°C offset drift vs. LMP7709MT/NOPB's ±5 µV/°C; 1.4 mA/ch supply current. | Better long-term drift stability in oven-controlled lab instruments; lower bandwidth (2 MHz) limits high-speed filtering use. | Select when ultra-low drift dominates over speed and quad integration; requires separate devices for multi-channel needs. |
| AD8604ARUZ | Unity-gain stable; 6 MHz GBWP; 0.5 mA/ch supply current; ±65 µV max offset (tighter than LMP7709MT/NOPB). | Lower power suits energy-harvesting sensors; unity stability simplifies gain-setting but restricts minimum gain to 1. | Choose for battery-limited applications needing lower IQ and guaranteed unity-gain operation, accepting reduced bandwidth and no decompensated speed advantage. |
Compared with OPA2188AIDR and AD8604ARUZ, the LMP7709MT/NOPB delivers higher bandwidth per mA (4.8 MHz/mA vs. 1.4 and 12 MHz/mA respectively), quad integration for space savings, and decompensated speed for fixed-gain precision stages - making it optimal for compact, medium-speed, multi-channel analog front-ends.
Availability
LMP7709MT/NOPB is available at Aetrix Electronics and suitable for high-impedance sensor interface, battery-powered instrumentation, and DAC buffering requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LMP7709MT/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 precision amplifier design heritage and broad industrial qualification.
The LMP™ precision amplifier family - including LMP7709MT/NOPB - was engineered for high-accuracy signal conditioning in sensor interfaces, medical devices, and test equipment where low offset, ultra-low bias current, and rail-to-rail operation are mandatory.
FAQ
What is the maximum operating supply voltage for LMP7709MT/NOPB?
The LMP7709MT/NOPB has an absolute maximum supply voltage of 13.2 V (V+ − V−), with recommended operating range from 2.7 V to 12 V. Operation at 12 V is fully specified across −40°C to +125°C, delivering 15 MHz GBWP and 5.9 V/µs slew rate per channel as confirmed in the ±5 V electrical characteristics table.
Is LMP7709MT/NOPB unity-gain stable?
No, the LMP7709MT/NOPB is decompensated and requires a minimum closed-loop gain of 6 for stability. Attempting unity-gain configuration will cause oscillation. For unity-gain applications, TI recommends alternatives like the OPA2188 or AD8604 - the LMP7709MT/NOPB is optimized for fixed-gain ≥6 precision stages.
What is the input common-mode voltage range of LMP7709MT/NOPB at 3.3 V supply?
At VS = 3.3 V, the LMP7709MT/NOPB supports rail-to-rail input common-mode range from −0.2 V to VS + 0.2 V (i.e., −0.2 V to +3.5 V), as specified in the 3 V electrical characteristics table under CMVR with CMRR ≥80 dB. This enables direct interfacing with sensors whose output spans near ground or near VS.
How does LMP7709MT/NOPB handle capacitive loads?
The LMP7709MT/NOPB is sensitive to capacitive loading on its output. For loads >100 pF, TI recommends adding an isolation resistor (RISO) between the output and load capacitance, as shown in Figure 45 of the datasheet. Typical RISO values range from 10 Ω to 100 Ω depending on CL - larger values improve stability but reduce output drive capability.
What package options are available for LMP7709MT/NOPB?
The LMP7709MT/NOPB is exclusively offered in the 14-pin TSSOP (PW) package per TI's official documentation. The 14-pin SOIC variant exists for the same part number family but is designated LMP7709M/NOPB - the "T" suffix in LMP7709MT/NOPB explicitly denotes the TSSOP packaging, confirmed in TI's product folder and packaging drawings.
LMP7709MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5.9V/µs
- Gain Bandwidth Product:
- 15 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 37 µV
- Current - Supply:
- 2.9mA (x4 Channels)
- Current - Output / Channel:
- 86 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMP7709MT/NOPB FAQ
1.How can I place an order for LMP7709MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7709MT/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 LMP7709MT/NOPB reliable?
The price and inventory of LMP7709MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7709MT/NOPB is usually 5 days.
3.What payment methods are accepted for LMP7709MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7709MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7709MT/NOPB?
LMP7709MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7709MT/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 LMP7709MT/NOPB?
For technical support, including LMP7709MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7709MT/NOPB requirements.
6.How does Aetrix verify that LMP7709MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP7709MT/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 LMP7709MT/NOPB meets industry standards.
7.What is the process for return or replacement of LMP7709MT/NOPB?
All LMP7709MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP7709MT/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 LMP7709MT/NOPB part is unused and in its original packaging.
Return procedure for LMP7709MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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