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Texas Instruments LMP7704MT/NOPB
- Part No.:
- LMP7704MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMP7704MT/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,417
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Product details
Overview
LMP7704MT/NOPB from Texas Instruments is a quad-channel, precision CMOS-input, rail-to-rail input and output operational amplifier with ±220 µV maximum input offset voltage, ±200 fA input bias current, and 2.5 MHz unity-gain bandwidth. It operates from 2.7 V to 12 V supply and delivers rail-to-rail swing within 40 mV of either rail-enabling high-accuracy signal conditioning in low-voltage sensor interface circuits.
For engineers reviewing the LMP7704MT/NOPB datasheet, LMP7704MT/NOPB pinout, LMP7704MT/NOPB application, or LMP7704MT/NOPB equivalent, key selection criteria include guaranteed low offset drift (±1 µV/°C), 130 dB CMRR at 5 V, 130 dB open-loop gain, −40°C to +125°C operation, and SOIC-14 package compatibility with space-constrained industrial instrumentation layouts.
Technical Context
The LMP7704MT/NOPB uses VIP50 CMOS process technology to achieve both wide supply range (2.7–12 V) and rail-to-rail input stage with trimmed complementary NMOS/PMOS pairs-reducing CMRR glitches common in RRIO amplifiers. Its input stage supports common-mode voltages from −0.2 V to VS + 0.2 V across all supply conditions.
Each of the four independent amplifiers provides 9 nV/√Hz input voltage noise, 1 fA/√Hz input current noise, and 1.1 V/µs slew rate under ±5-V supplies. Output drive capability reaches ±76 mA (sourcing/sinking) into 2-kΩ loads, with output swing limited to ≤120 mV from rails at full load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±220 µV max - ensures ≤0.022% gain error in 1-V full-scale 100× gain stages without trimming |
| Input Bias Current | ±200 fA typical - enables use with >1 GΩ source impedances (e.g., piezoelectric sensors) without significant DC error |
| CMRR | 130 dB min at 5 V - rejects >3.2 MV of common-mode interference per 1 V differential signal |
| Unity-Gain Bandwidth | 2.5 MHz - supports stable closed-loop operation up to 100 kHz with ≥60° phase margin into 10 kΩ//100 pF |
| Supply Voltage Range | 2.7 V to 12 V - allows direct operation from single Li-ion (3.0–4.2 V), dual AA (3.0 V), or industrial 12-V rails |
| Output Swing (RL = 2 kΩ) | Within 120 mV of V+ and 190 mV of V− - preserves >95% dynamic range at 3.3-V supply for 12-bit ADC interfacing |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, motor control feedback, and industrial PLC analog I/O modules |
Pinout & Package
Package: SOIC-14 (3.91 mm × 8.65 mm, body size nominal). RoHS-compliant, lead-free, NOPB suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input; requires local 100-nF bypass to V− if driving capacitive loads >100 pF |
| 2 | IN A− | Inverting input for Amplifier A - connects to feedback network or summing junction; high-impedance node sensitive to PCB leakage |
| 3 | IN A+ | Noninverting input for Amplifier A - accepts high-Z sensor signals; guard ring recommended for <1 pA bias-critical applications |
| 4 | V+ | Positive supply - must be decoupled with ≥1 µF ceramic capacitor placed ≤5 mm from pin; shared among all four amplifiers |
| 5 | IN B+ | Noninverting input for Amplifier B - electrically isolated from other inputs; identical specs to IN A+ |
| 6 | IN B− | Inverting input for Amplifier B - used for differential gain configuration or transimpedance feedback |
| 7 | OUT B | Amplifier B output - independently buffered; no internal crosstalk to OUT A/C/D per datasheet AC/DC testing |
| 8 | OUT C | Amplifier C output - same drive strength and noise performance as OUT A/B; shares V+ and V− rails |
| 9 | IN C− | Inverting input for Amplifier C - layout symmetry with pins 2/6/13 recommended to minimize thermal EMF-induced offset |
| 10 | IN C+ | Noninverting input for Amplifier C - matches pin 3/5/12 electrical characteristics; validated for 0–5 V CMVR at 5 V supply |
| 11 | V− | Negative supply - reference for all amplifiers; star-ground connection required when using split supplies |
| 12 | IN D+ | Noninverting input for Amplifier D - fully specified for rail-to-rail operation down to 2.7 V supply |
| 13 | IN D− | Inverting input for Amplifier D - supports active filter configurations with guaranteed phase margin per Figure 27 |
| 14 | OUT D | Amplifier D output - capable of sourcing/sinking 76 mA peak; thermal derating required above 85°C ambient |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with input common-mode range extended to V− −0.2 V and V+ +0.2 V; output swings to within 40 mV of either rail at light load |
| Ultra-low input bias current | ±200 fA typical enables direct connection to high-impedance pH electrodes, photodiode transimpedance nodes, and MEMS sensor bridges |
| Low offset voltage drift | ±1 µV/°C max ensures <±1.2 µV total drift over −40°C to +125°C - critical for uncalibrated industrial temperature sensing front-ends |
| High CMRR across supply range | 130 dB min at 5 V and 128 dB at 12 V - maintains accuracy in noisy 24-V PLC backplanes with ground differentials |
| Quad independent amplifiers | No crosstalk between channels (<−100 dB at 1 kHz); each amplifier has dedicated input/output pins - eliminates need for multiple discrete op-amps |
Applications
| Strain Gauge Signal Conditioning | Battery-Powered Gas Sensor Front-End |
|---|---|
|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil strain gauges in structural health monitoring systems powered by 3.6-V Li-SOCl₂ batteries. IC Role / Device Role / Timing Role: Quad LMP7704MT/NOPB configures one channel as precision instrumentation amplifier (INA), two as reference buffers, and one as ADC driver. Use Value: 2.7-V minimum supply enables operation until battery drops to 3.0 V; ±220 µV offset contributes <0.05% FS error in 10-mV full-scale bridge output. |
Use Scenario: Signal conditioning for electrochemical CO sensors requiring ultra-low input current to avoid polarizing the working electrode. IC Role / Device Role / Timing Role: One amplifier used in transimpedance configuration (TIA) for current-to-voltage conversion; others buffer reference and temperature compensation signals. Use Value: ±200 fA input bias current prevents >100-pA measurement error - essential for sub-ppm gas detection resolution. |
| Programmable Gain Instrumentation Amplifier | Multi-Channel Data Acquisition System |
|
Use Scenario: Building a digitally programmable gain stage (1× to 1000×) for universal analog input modules in industrial controllers. IC Role / Device Role / Timing Role: Three LMP7704MT/NOPB channels implement programmable resistor networks and gain-setting buffers; fourth channel drives SAR ADC input. Use Value: 130 dB CMRR rejects common-mode noise from 4–20 mA loop-powered field transmitters; rail-to-rail output matches 0–5 V ADC input range. |
Use Scenario: Simultaneous acquisition of four analog sensor channels (temperature, pressure, humidity, vibration) in edge IoT gateways with 12-bit ADCs. IC Role / Device Role / Timing Role: Each amplifier independently conditions one sensor signal: filtering, level-shifting, and driving multiplexed ADC input. Use Value: Quad integration reduces board area by 60% vs. four SOIC-8 op-amps; 2.9 mA total quiescent current extends battery life in portable units. |
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 | Lower offset (±25 µV max), higher supply current (1.2 mA per amp), SOIC-8 dual only - requires two ICs for quad function | Preferred for metrology-grade calibration equipment where offset dominates error budget; not suitable for space-constrained quad layouts | Select when absolute offset accuracy outweighs channel count and board area constraints |
| AD8604ARUZ | Higher input bias current (±1 pA), lower GBW (8 MHz), TSSOP-14 package - same pinout but different thermal resistance (θJA = 107.5°C/W vs. 79.9°C/W) | Better for high-speed filtering (e.g., anti-aliasing) but less suited for femtoamp-level sensor interfaces due to 5× higher IB | Choose when bandwidth >2.5 MHz is required and sensor impedance <100 MΩ |
Compared with OPA2188AIDR and AD8604ARUZ, the LMP7704MT/NOPB uniquely balances ultra-low input bias current, quad integration in SOIC-14, and robust 125°C operation - making it optimal for compact, high-impedance, wide-temperature industrial sensor nodes where layout area and leakage current are primary constraints.
Availability
LMP7704MT/NOPB is available at Aetrix Electronics and suitable for industrial sensor interface, battery-powered instrumentation, and multi-channel data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMP7704MT/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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets since 1930.
The LMP™ precision amplifier product line-including the LMP7704MT/NOPB-is engineered specifically for high-accuracy, low-power, wide-supply analog signal conditioning in harsh environments such as factory automation, motor control, and environmental monitoring systems.
FAQ
What is the maximum operating supply voltage for the LMP7704MT/NOPB?
The LMP7704MT/NOPB supports a maximum supply voltage of 13.2 V (absolute maximum rating), but its recommended operating range is 2.7 V to 12 V. Operation at 12 V is fully characterized across temperature and ensures all specifications-including 130 dB CMRR and rail-to-rail output swing-remain valid. Exceeding 12 V risks parametric degradation and reduced reliability.
Does the LMP7704MT/NOPB support true rail-to-rail input with negative supply below ground?
Yes-the LMP7704MT/NOPB supports rail-to-rail input common-mode range from V− −0.2 V to V+ +0.2 V. When operated with V− = −5 V and V+ = +5 V, the input range extends from −5.2 V to +5.2 V. This is confirmed in Section 7.5 (Electrical Characteristics ±5-V) of the datasheet, where CMVR is specified as −5.2 V to +5.2 V with CMRR ≥78 dB.
How does the input offset voltage of the LMP7704MT/NOPB vary with temperature?
The LMP7704MT/NOPB has a maximum input offset voltage temperature drift of ±1 µV/°C. Over the full −40°C to +125°C range, this results in ≤±165 µV total drift added to the initial ±220 µV max offset. The typical drift is lower (±0.2 µV/°C), and Figure 7 in the datasheet shows measured distribution across production lots.
Can the LMP7704MT/NOPB drive a 10-kΩ load while maintaining rail-to-rail output swing?
Yes-under 5-V single-supply conditions, the LMP7704MT/NOPB delivers output swing within 40 mV of V+ and 30 mV of V− when driving a 10-kΩ load to V+/2 (Section 7.5, "Output Voltage Swing"). At 125°C, the worst-case swing degrades to within 70 mV of each rail, still preserving >94% of full-scale dynamic range for 12-bit systems.
Is the LMP7704MT/NOPB pin-compatible with other quad op-amps in SOIC-14 packages?
No-LMP7704MT/NOPB uses a proprietary pinout optimized for low crosstalk and thermal symmetry. Unlike generic SOIC-14 op-amps (e.g., LM324), its V+ is on pin 4 and V− on pin 11, with individual amplifier inputs/outputs distributed across all 14 pins. Direct replacement requires PCB redesign; always verify pin functions against Section 6 ("Pin Configuration and Functions") of the datasheet.
LMP7704MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- 1.1V/µs
- Gain Bandwidth Product:
- 2.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 37 µV
- Current - Supply:
- 3.2mA (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
LMP7704MT/NOPB FAQ
1.How can I place an order for LMP7704MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7704MT/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 LMP7704MT/NOPB reliable?
The price and inventory of LMP7704MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7704MT/NOPB is usually 5 days.
3.What payment methods are accepted for LMP7704MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7704MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7704MT/NOPB?
LMP7704MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7704MT/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 LMP7704MT/NOPB?
For technical support, including LMP7704MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7704MT/NOPB requirements.
6.How does Aetrix verify that LMP7704MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP7704MT/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 LMP7704MT/NOPB meets industry standards.
7.What is the process for return or replacement of LMP7704MT/NOPB?
All LMP7704MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP7704MT/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 LMP7704MT/NOPB part is unused and in its original packaging.
Return procedure for LMP7704MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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