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Texas Instruments LMP7704MAX/NOPB
- Part No.:
- LMP7704MAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMP7704MAX/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,721
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Product details
Overview
LMP7704MAX/NOPB from Texas Instruments is a quad-channel, precision CMOS-input, rail-to-rail input and output operational amplifier optimized for high-impedance sensor interface and battery-powered instrumentation. It delivers ±220 µV maximum input offset voltage, ±200 fA input bias current, 2.5 MHz unity-gain bandwidth, and operates from 2.7 V to 12 V supply rails - enabling accurate signal conditioning in low-voltage, wide-common-mode applications such as medical front-ends and portable data acquisition.
For engineers reviewing the LMP7704MAX/NOPB datasheet, LMP7704MAX/NOPB pinout, LMP7704MAX/NOPB application, or LMP7704MAX/NOPB equivalent, key selection criteria include its rail-to-rail I/O swing (within 40 mV of rails), 130 dB CMRR at 5 V, 9 nV/√Hz input voltage noise, −40°C to +125°C operating range, and SOIC-14 package compatibility with space-constrained PCB layouts.
Technical Context
The LMP7704MAX/NOPB uses VIP50 CMOS process technology to integrate complementary NMOS/PMOS input pairs with matched trimming, minimizing CMRR glitches common in rail-to-rail input amplifiers. Its input stage supports common-mode voltages from −0.2 V to VS + 0.2 V across 2.7–12 V supplies.
The quad architecture features independent amplifiers with identical specifications: open-loop gain ≥100 dB (RL = 10 kΩ), output swing ≤80 mV from rails under 2 kΩ load, and 1.1 V/µs slew rate at ±5 V supply - ensuring consistent performance across channels in multi-signal conditioning systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±220 µV max - enables sub-mV error budgets in 12-bit+ precision measurement paths |
| Input Bias Current | ±200 fA typical - preserves signal integrity in >1 GΩ source impedances (e.g., pH electrodes, piezoelectric sensors) |
| Supply Voltage Range | 2.7 V to 12 V - supports single-supply 3.3 V/5 V systems and dual-supply ±5 V instrumentation |
| Unity-Gain Bandwidth | 2.5 MHz - sufficient for anti-aliasing filters, DAC buffers, and active low-pass stages up to ~200 kHz |
| CMRR | 130 dB at 5 V - rejects power supply ripple and shared-noise coupling in multi-amplifier PCB layouts |
| Output Swing (2 kΩ) | Within 80 mV of rails - maximizes dynamic range in low-voltage ADC interfaces (e.g., 3.3 V SAR converters) |
| Operating Temperature | −40°C to +125°C - qualified for industrial control, automotive cabin modules, and downhole sensing |
Pinout & Package
Package: SOIC-14 (3.91 mm × 8.65 mm body, 1.27 mm pitch). 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; rail-to-rail capable |
| 2 | IN A− | Inverting input for Amplifier A - high-impedance node requiring guarded trace routing |
| 3 | IN A+ | Noninverting input for Amplifier A - accepts DC-coupled sensor signals up to VS + 0.2 V |
| 4 | V+ | Positive supply rail - decouple with 100 nF ceramic capacitor near pin |
| 5 | IN B+ | Noninverting input for Amplifier B - electrically isolated from other inputs per channel |
| 6 | IN B− | Inverting input for Amplifier B - matches IN A− in bias current and offset specs |
| 7 | OUT B | Amplifier B output - independent output stage; no crosstalk with OUT A/C/D |
| 8 | OUT C | Amplifier C output - shares same die but fully isolated small-signal performance |
| 9 | IN C− | Inverting input for Amplifier C - identical layout-sensitive routing requirements as IN A− |
| 10 | IN C+ | Noninverting input for Amplifier C - supports common-mode range from V− −0.2 V to V+ +0.2 V |
| 11 | V− | Negative supply rail - connect directly to ground (single-supply) or −5 V (dual-supply) |
| 12 | IN D+ | Noninverting input for Amplifier D - enables four independent gain stages on one IC |
| 13 | IN D− | Inverting input for Amplifier D - matched offset/bias to other channels per datasheet spec |
| 14 | OUT D | Amplifier D output - completes quad configuration; all outputs specified for 2 kΩ min load |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal utilization with 2.7 V supplies - critical for battery-operated 3.3 V systems |
| Ultra-low input bias current (±200 fA) | Prevents loading errors in high-Z sources like photodiode transimpedance amps or electret mic preamps |
| Trimmed complementary input stage | Reduces CMRR degradation at rail extremes - maintains >80 dB CMRR even at VCM = VS − 0.2 V |
| Wide supply range (2.7 V to 12 V) | Eliminates need for separate LDOs in mixed-voltage systems - powers from Li-ion (3.0–4.2 V) or 9 V batteries |
| −40°C to +125°C operation | Qualified for under-hood automotive, factory automation, and outdoor environmental monitoring |
Applications
| High-Impedance Sensor Interface | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Amplifying output of a 10 GΩ pH electrode in portable water quality tester. IC Role / Device Role / Timing Role: Precision DC-coupled buffer with ultra-low input bias current to prevent electrode polarization. Use Value: ±200 fA bias current ensures <0.1% measurement error at 100 mV output; rail-to-rail I/O captures full 0–14 pH range on 3.3 V ADC. |
Use Scenario: Signal conditioning front-end for handheld multimeter measuring µA-level leakage currents. IC Role / Device Role / Timing Role: Quad amplifier providing simultaneous voltage gain, current-to-voltage conversion, reference buffering, and filter stage. Use Value: 2.9 mA total quiescent current enables >200 hours runtime on two AA cells; 125°C rating supports internal self-heating during extended measurements. |
| DAC Output Buffering | Active Filter Stage |
Use Scenario: Driving 12-bit DAC output (e.g., DAC8562) into 10 kΩ load with minimal code-dependent glitch. IC Role / Device Role / Timing Role: Unity-gain stable buffer isolating DAC from varying load capacitance and noise coupling. Use Value: 2.5 MHz GBW ensures <1% settling error for 100 kHz update rates; 9 nV/√Hz noise avoids degrading 12-bit ENOB. |
Use Scenario: 4th-order Sallen-Key low-pass filter in ECG analog front-end rejecting 50/60 Hz interference. IC Role / Device Role / Timing Role: Two amplifiers configured as cascaded 2-pole sections with matched AC response. Use Value: Channel-to-channel offset matching (<±220 µV) ensures <0.05 dB passband flatness; 130 dB CMRR suppresses common-mode mains pickup. |
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 only (4.5–36 V); higher 0.03 µV/°C TCVOS vs LMP7704MAX/NOPB's ±1 µV/°C | Optimized for high-voltage industrial sensors; less suitable for 3.3 V battery systems | Select when supply >4.5 V and long-term drift dominates over input bias current |
| AD8629ARZ | Lower 1 µV max VOS but higher 1 pA IB vs LMP7704MAX/NOPB's ±200 fA; SOIC-8 (dual only) | Requires two ICs for quad function; better for ultra-low-offset single/dual channels | Select when absolute offset <1 µV is mandatory and high-Z sources <1 GΩ |
Compared with OPA2188AIDR and AD8629ARZ, the LMP7704MAX/NOPB uniquely balances femtoampere input bias, rail-to-rail operation down to 2.7 V, quad integration, and 125°C qualification - making it optimal for compact, low-power, high-precision multi-channel systems where sensor impedance exceeds 1 GΩ.
Availability
LMP7704MAX/NOPB is available at Aetrix Electronics and suitable for high-impedance sensor interface, battery-powered instrumentation, and precision DAC buffering requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LMP7704MAX/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 precision amplifiers and signal chain solutions.
The LMP7704MAX/NOPB belongs to TI's LMP™ precision amplifier family, engineered specifically for sensor interface, instrumentation, and low-power measurement systems demanding ultra-low input bias current and rail-to-rail operation.
FAQ
What is the maximum supply voltage for the LMP7704MAX/NOPB?
The LMP7704MAX/NOPB supports a maximum supply voltage of 13.2 V (absolute maximum rating), with recommended operation from 2.7 V to 12 V. Exceeding 12 V risks exceeding junction temperature limits under load; operation at 12 V is validated across −40°C to +125°C with full parameter guarantees per datasheet Section 7.3.
Does the LMP7704MAX/NOPB support true rail-to-rail input at 3.3 V supply?
Yes - the LMP7704MAX/NOPB achieves rail-to-rail input operation from V− −0.2 V to V+ +0.2 V. At 3.3 V supply (V− = 0 V), this means common-mode input range extends from −0.2 V to +3.5 V, verified per Electrical Characteristics Table 7.5 and Figure 10 in the SNOSAI9I datasheet.
What is the typical input bias current of the LMP7704MAX/NOPB at 85°C?
The LMP7704MAX/NOPB exhibits ±1 pA maximum input bias current at −40°C ≤ TA ≤ 125°C (Section 7.5, IB row). At 85°C, typical IB remains ≤ ±0.2 pA, consistent with its VIP50 CMOS process and on-die guarding - critical for maintaining accuracy in high-temperature sensor nodes.
Can the LMP7704MAX/NOPB drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes - at 10 kΩ load, the LMP7704MAX/NOPB swings within 40–70 mV of each rail depending on supply (e.g., 50 mV from V+ at 5 V, Section 7.5 VOUT table). This meets rail-to-rail output definition and ensures >98% dynamic range utilization for 12-bit ADC interfacing.
Is the LMP7704MAX/NOPB pin-compatible with other quad op-amps in SOIC-14 package?
No - the LMP7704MAX/NOPB has a proprietary pinout optimized for quad independence (e.g., V+ on Pin 4, V− on Pin 11). It is not pin-compatible with industry-standard SOIC-14 quad op-amps like LM324 or TL084; PCB layout must follow TI's Pin Functions table in Section 6 of SNOSAI9I.
LMP7704MAX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 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-SOIC
LMP7704MAX/NOPB FAQ
1.How can I place an order for LMP7704MAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP7704MAX/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 LMP7704MAX/NOPB reliable?
The price and inventory of LMP7704MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP7704MAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMP7704MAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP7704MAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP7704MAX/NOPB?
LMP7704MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP7704MAX/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 LMP7704MAX/NOPB?
For technical support, including LMP7704MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP7704MAX/NOPB requirements.
6.How does Aetrix verify that LMP7704MAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP7704MAX/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 LMP7704MAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMP7704MAX/NOPB?
All LMP7704MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP7704MAX/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 LMP7704MAX/NOPB part is unused and in its original packaging.
Return procedure for LMP7704MAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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