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Texas Instruments LMP8672MA/NOPB
- Part No.:
- LMP8672MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMP8672MA/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:195
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Product details
Overview
LMP8672MA/NOPB from Texas Instruments is a dual-channel, high-voltage (±20V), low-noise (2.5nV/√Hz), precision operational amplifier in SOIC-8 package, featuring 135dB open-loop gain, ±20V/μs slew rate, and 55MHz gain-bandwidth product-designed for high-fidelity active filters and precision current-loop signal conditioning in industrial test equipment.
For engineers reviewing the LMP8672MA/NOPB datasheet, LMP8672MA/NOPB pinout, LMP8672MA/NOPB application, or LMP8672MA/NOPB equivalent, key selection criteria include input offset voltage drift (2μV/°C max), PSRR/CMRR >110dB, output short-circuit protection, and operation across –40°C to +125°C industrial temperature range.
Technical Context
The LMP8672MA/NOPB implements a bipolar-input, high-slew-rate op-amp architecture optimized for DC precision and wide dynamic range. It delivers 135dB open-loop gain and 0.000009% linearity, enabling sub-microvolt-level error control in multi-pole active filter topologies and PLL loop integrators where gain stability over temperature and supply variation is critical.
Its ±20V/μs slew rate and ±26mA output drive support fast settling (1.2μs to 0.1%) into 2kΩ loads while maintaining THD+N ≤0.00009% at 3Vrms-making it suitable for ultrasound front-end amplification and high-resolution data acquisition systems requiring low distortion across 20Hz–20kHz bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 0.4mV max - ensures ≤0.02% gain error in 20V full-scale 4–20mA receiver circuits |
| TC VOS | 2μV/°C max - limits drift to <0.25mV over full –40°C to +125°C operating range |
| Voltage Noise Density | 2.5nV/√Hz at 1kHz - enables SNR >120dB in precision sensor signal chains with 10kHz bandwidth |
| Slew Rate | ±20V/μs - supports clean 10V step response in <1.2μs for closed-loop motor control feedback paths |
| Gain Bandwidth Product | 55MHz - allows stable unity-gain configuration up to 55MHz or 10× gain up to 5.5MHz |
| PSRR / CMRR | >110dB - rejects >100,000:1 power-supply ripple and common-mode interference in noisy industrial environments |
| Supply Voltage Range | ±2.5V to ±20V - accommodates dual-rail industrial supplies without external regulation or level-shifting |
Pinout & Package
SOIC-8 (Package D0008A), 3.9mm × 4.9mm body, 1.75mm max height, RoHS-compliant Sn lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection; must be left floating or tied to ground per layout best practice |
| 2 | –IN (Channel A) | Inverting input for first amplifier; high-impedance node sensitive to PCB leakage and guard ring requirements |
| 3 | +IN (Channel A) | Non-inverting input for first amplifier; matched to Pin 2 for optimal CMRR performance |
| 4 | V– | Negative supply rail; requires local 0.1μF ceramic decoupling within 5mm of pin |
| 5 | +IN (Channel B) | Non-inverting input for second amplifier; electrically isolated from Channel A inputs |
| 6 | –IN (Channel B) | Inverting input for second amplifier; shares same noise and layout sensitivity as Pin 2 |
| 7 | VOUT (Channel B) | Output of second amplifier; capable of ±18.8V swing into 2kΩ load at ±20V supply |
| 8 | V+ | Positive supply rail; requires symmetric decoupling to Pin 4 for PSRR optimization |
Key Features
| Feature | Design Value |
|---|---|
| Output short-circuit protection | Continuous safe operation under output-to-rail fault conditions without latch-up or parametric shift |
| Best-in-class linearity (135dB) | 0.000009% THD+N enables accurate DC-coupled multi-feedback filter synthesis without harmonic folding |
| Low input bias current (50nA max) | Minimizes voltage error across high-value feedback networks (>1MΩ) used in ultra-low-frequency integrators |
| High PSRR/CMRR (>110dB) | Rejects >100dB of 50/60Hz mains coupling and switching regulator noise in shared PCB power domains |
| Industrial temperature range | Specified performance maintained from –40°C to +125°C ambient-suitable for uncooled motor drive enclosures |
Applications
| Active Low-Pass Filter | 4–20mA Current Loop Receiver |
|---|---|
Use Scenario: 4-pole Sallen-Key filter in GPS receiver baseband path suppressing out-of-band RF interference while preserving phase linearity. IC Role / Device Role / Timing Role: Dual-channel op-amp implementing cascaded integrator stages with precise pole placement via matched resistor-capacitor networks. Use Value: 2.5nV/√Hz input noise and 135dB open-loop gain ensure <0.001dB passband ripple and <–80dB stopband attenuation at 2× IF frequency. |
Use Scenario: Isolated analog input stage converting 4–20mA field transmitter signals to 0–5V for PLC ADC interface in factory automation. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with programmable gain and rail-to-rail output swing referenced to system ground. Use Value: 0.4mV VOS and 2μV/°C TC enable ≤0.1% total measurement error over full industrial temperature range without calibration. |
| Precision PLL Loop Filter | Ultrasound Signal Conditioning |
Use Scenario: Third-order passive-active loop filter in satellite communication transceiver locking 100MHz VCO to GPS-disciplined reference. IC Role / Device Role / Timing Role: Dual op-amp providing integrator and proportional gain stages with ultra-stable DC transfer function. Use Value: 135dB open-loop gain and <0.000009% linearity prevent cycle slipping and jitter accumulation during long-term lock. |
Use Scenario: Low-noise preamplifier stage amplifying weak piezoelectric echo signals (≤100μV) in portable medical ultrasound probe head. IC Role / Device Role / Timing Role: High-gain, low-noise instrumentation amplifier front-end with differential input and single-ended output. Use Value: 2.5nV/√Hz noise density and 55MHz GBW preserve time-of-flight resolution down to 1ns in 15MHz bandwidth imaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2189IDR | Zero-drift architecture (0.005μV/°C VOS drift), lower noise (1.7nV/√Hz), but 12V max supply and SOIC-8 pinout differs (V–/V+ swapped) | Better for zero-drift DC-critical apps (e.g., weigh scales); unsuitable for ±20V industrial rails or legacy LMP8672 layout reuse | Select OPA2189IDR only when VOS drift dominates noise and supply is ≤±12V; verify PCB pinout compatibility |
| AD8672ARZ | Similar SOIC-8 pinout and ±15V supply limit; higher VOS (125μV typ), lower GBW (10MHz), no short-circuit protection | Cost-optimized for general-purpose precision use; lacks robustness for high-current fault conditions in motor control feedback | Choose AD8672ARZ for non-critical lab-grade instruments where ±15V supply suffices and fault tolerance is not required |
Compared with OPA2189IDR and AD8672ARZ, the LMP8672MA/NOPB uniquely balances ±20V operation, integrated short-circuit protection, and 2.5nV/√Hz noise-making it the only option among the three qualified for ruggedized 4–20mA receivers and high-voltage active filters without derating or external protection.
Availability
LMP8672MA/NOPB is available at Aetrix Electronics and suitable for industrial test equipment, precision active filters, and 4–20mA current loop interfaces requiring stable component supply across extended temperature and voltage ranges.
Supply support for LMP8672MA/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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, precision, and industrial-grade qualification.
The LMP8672MA/NOPB belongs to TI's LMP precision amplifier family, engineered specifically for high-dynamic-range signal conditioning in harsh industrial, test & measurement, and medical sensing applications where DC accuracy and low noise coexist.
FAQ
What is the maximum supply voltage rating for the LMP8672MA/NOPB?
The LMP8672MA/NOPB supports a total supply voltage (V+ to V–) of up to 40V, with recommended operating range of ±2.5V to ±20V. Absolute maximum ratings specify ±23V per rail (46V total), but sustained operation above ±20V may impact long-term reliability and is not characterized per datasheet specifications.
Does the LMP8672MA/NOPB have built-in ESD protection, and what are its ratings?
Yes, the LMP8672MA/NOPB includes limited on-chip ESD protection: 2000V HBM (JESD22-A114C), 200V MM on Pins 1/4/7/8, and 100V MM on Pins 2/3/5/6. Handling requires shorting leads or using conductive foam; PCB layout must avoid floating inputs and include proper grounding of unused pins (e.g., Pin 1 NC).
How does the input bias current of the LMP8672MA/NOPB compare between channels and over temperature?
The LMP8672MA/NOPB specifies 50nA max input bias current for each channel at 25°C, with typical drift of 0.2nA/°C over –40°C to +125°C. Channel-to-channel matching is not guaranteed, so designs requiring matched IB (e.g., dual integrators) should use same-channel topology or external trimming.
Can the LMP8672MA/NOPB drive a 600Ω load at full output swing?
No-the LMP8672MA/NOPB guarantees ±18.8V output swing into 2kΩ, but driving 600Ω reduces maximum linear output to approximately ±15V due to increased quiescent current and thermal limitations. For 600Ω loads, THD+N rises to 0.00009% at 3Vrms, confirming suitability only for moderate-swing audio or instrumentation use cases.
Is the LMP8672MA/NOPB pin-compatible with other devices in the LMP867x family?
Yes-the LMP8672MA/NOPB shares identical SOIC-8 pinout (D0008A) with LMP8671 and LMP8674 Channel A/B sections, enabling drop-in replacement in dual-amplifier configurations. However, LMP8674 (quad) uses SOIC-14 and is not physically interchangeable despite functional similarity.
LMP8672MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 55 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 12.5mA (x2 Channels)
- Current - Output / Channel:
- 26 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LMP8672MA/NOPB FAQ
1.How can I place an order for LMP8672MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP8672MA/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 LMP8672MA/NOPB reliable?
The price and inventory of LMP8672MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP8672MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMP8672MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP8672MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP8672MA/NOPB?
LMP8672MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP8672MA/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 LMP8672MA/NOPB?
For technical support, including LMP8672MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP8672MA/NOPB requirements.
6.How does Aetrix verify that LMP8672MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP8672MA/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 LMP8672MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMP8672MA/NOPB?
All LMP8672MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP8672MA/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 LMP8672MA/NOPB part is unused and in its original packaging.
Return procedure for LMP8672MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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