My Inquiry
My Account
Texas Instruments LMV842MM/NOPB
- Part No.:
- LMV842MM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV842MM/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,693
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMV842MM/NOPB from Texas Instruments is a dual-channel, CMOS-input, rail-to-rail input/output operational amplifier optimized for high-impedance sensor interface and battery-powered instrumentation. It operates from 2.7 V to 12 V, delivers 4.5 MHz unity-gain bandwidth, draws only 1 mA per channel, and features 500 µV max input offset voltage and 0.3 pA input bias current - enabling precision signal conditioning in space-constrained, low-power systems.
For engineers reviewing the LMV842MM/NOPB datasheet, LMV842MM/NOPB pinout, LMV842MM/NOPB application, or LMV842MM/NOPB equivalent, key selection criteria include its VSSOP-8 package (3.00 mm × 3.00 mm), −40°C to +125°C operating temperature range, RRIO performance at 3.3 V/5 V/±5 V supplies, and suitability for DAC buffering, active filtering, and high-gain instrumentation amplifier front-ends.
Technical Context
The LMV842MM/NOPB implements a CMOS input stage with anti-parallel ESD diodes limiting differential input voltage to ±300 mV, and supports single-supply (2.7–12 V) or split-supply (±5 V) operation. Its rail-to-rail input common-mode range extends from V− – 0.1 V to V+ + 0.2 V (at 5 V), and output swing reaches within 32 mV of rails (RL = 10 kΩ, VO = V+/2).
It achieves 133 dB open-loop gain, 112 dB CMRR, and 108 dB PSRR at DC, with 20 nV/√Hz input voltage noise and 2.5 V/µs slew rate. Phase margin remains stable at 67° across load capacitances up to 100 pF, supporting robust closed-loop stability in active filter and buffer configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - enables direct interfacing with Li-ion, 3.3 V logic, and industrial 12 V rails without level-shifting. |
| Unity-Gain Bandwidth | 4.5 MHz - supports stable amplification of audio-band and fast-sensor signals up to ~300 kHz at moderate gains. |
| Input Bias Current | 0.3 pA typical - preserves signal integrity in >1 GΩ sensor interfaces (e.g., pH electrodes, piezoresistive sensors). |
| Input Offset Voltage | ±500 µV maximum - ensures <1 LSB error in 12-bit systems with 2 V full-scale input ranges. |
| Supply Current per Channel | 1.5 mA maximum - allows dual-channel operation on 10 mA budget in portable instrumentation. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial control, and outdoor sensor nodes. |
| Rail-to-Rail I/O | Input CMVR: V− – 0.1 V to V+ + 0.2 V; Output swing: within 32 mV of rails (10 kΩ load) - maximizes dynamic range in low-voltage systems. |
Pinout & Package
LMV842MM/NOPB is housed in an 8-pin VSSOP package (3.00 mm × 3.00 mm × 1.00 mm), optimized for high-density PCB layouts and thermal performance (RθJA = 179.2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Channel A output | Drives loads ≥2 kΩ; rail-to-rail swing supports full utilization of ADC reference voltage. |
| 2 (–IN A) | Channel A inverting input | Accepts feedback networks; protected by internal 130 Ω series resistors and ±300 mV differential clamp. |
| 3 (+IN A) | Channel A noninverting input | High-impedance node (0.3 pA bias); connects directly to high-Z sensors or reference dividers. |
| 4 (V–) | Negative supply | Ground reference in single-supply use; supports true split-rail operation down to –5 V. |
| 5 (+IN B) | Channel B noninverting input | Independent high-Z input for differential sensing or dual-path signal conditioning. |
| 6 (–IN B) | Channel B inverting input | Enables independent feedback per channel; no crosstalk between A/B paths (≥140 dB channel separation at 1 kHz). |
| 7 (OUT B) | Channel B output | Electrically isolated output stage; supports simultaneous buffering of two sensor outputs. |
| 8 (V+) | Positive supply | Accepts 2.7–12 V; internal regulation ensures stable biasing across supply variation. |
Key Features
| Feature | Design Value |
|---|---|
| CMOS Input Stage | 0.3 pA input bias current enables direct connection to megohm-level sensor sources without signal degradation. |
| Rail-to-Rail Input/Output | Full input common-mode range and output swing within 32 mV of rails preserve >98% of available voltage headroom at 3.3 V. |
| Low Power Operation | 1 mA per channel supply current allows dual op-amp functionality in sub-10 mA system power budgets. |
| Wide Supply Range | 2.7–12 V operation eliminates need for dedicated LDOs when interfacing with mixed-voltage subsystems. |
| High Precision DC Performance | 500 µV max VOS and 0.25 µV/°C max TCVOS (±5 V) support stable DC-coupled amplification over temperature. |
Applications
| High-Impedance Sensor Interface | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Amplifying microamp-level signals from pH electrodes, photodiode transimpedance outputs, or capacitive humidity sensors. IC Role / Device Role / Timing Role: Front-end buffer and gain stage with ultra-low input current to prevent sensor loading and drift. Use Value: 0.3 pA input bias current avoids >1 mV error in 3.3 V systems with 10 MΩ sensor impedance. |
Use Scenario: Signal conditioning in handheld multimeters, portable gas analyzers, or wearable biosensors. IC Role / Device Role / Timing Role: Dual-channel analog front-end providing simultaneous sensor buffering and reference scaling. Use Value: 1 mA per channel supply current enables >100-hour battery life on two AA cells in always-on monitoring mode. |
| DAC Output Buffering | Active Filter Implementation |
Use Scenario: Driving 12-bit DAC outputs into 10 kΩ loads while maintaining monotonicity and settling time. IC Role / Device Role / Timing Role: Unity-gain voltage follower isolating DAC core from variable load capacitance. Use Value: Rail-to-rail output swing ensures full 0–3.3 V DAC range is preserved without clipping or headroom loss. |
Use Scenario: Constructing 2nd-order Sallen-Key or multiple-feedback band-pass filters for ECG or audio preprocessing. IC Role / Device Role / Timing Role: Active gain element in filter topology requiring low noise, stable phase margin, and wide bandwidth. Use Value: 4.5 MHz GBW and 67° phase margin support stable 100 kHz filter designs with <1% passband ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9062IDR | Higher 10 MHz GBW, 0.55 pA input bias, but 1.8–5.5 V supply limit and lower 110 dB CMRR. | Better for high-speed filtering; less suitable for ±5 V or 12 V industrial sensor interfaces. | Select TLV9062IDR when bandwidth >5 MHz is required and supply is limited to ≤5.5 V. |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C offset drift, but 350 kHz GBW and 17 µA supply current per channel. | Superior DC accuracy for precision weigh scales; insufficient bandwidth for audio or fast sensor sampling. | Select OPA2333AIDR when long-term offset stability dominates over speed and power. |
Compared with TLV9062IDR and OPA2333AIDR, LMV842MM/NOPB uniquely balances 4.5 MHz bandwidth, 0.3 pA input bias, 2.7–12 V operation, and 1 mA/channel power - making it optimal for general-purpose, wide-supply, high-impedance analog signal chains where neither extreme speed nor zero-drift is mandatory.
Availability
LMV842MM/NOPB is available at Aetrix Electronics and suitable for high-impedance sensor interface, battery-powered instrumentation, and active filter design requiring stable component supply across automotive, industrial, and medical OEM programs.
Supply support for LMV842MM/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 specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The LMV84x family was designed for low-power, high-accuracy signal conditioning in portable and space-constrained systems - emphasizing rail-to-rail operation, CMOS input fidelity, and wide supply flexibility from 2.7 V to 12 V.
FAQ
What is the maximum supply voltage for LMV842MM/NOPB?
The absolute maximum supply voltage (V+ – V−) for LMV842MM/NOPB is 13.2 V, with recommended operation from 2.7 V to 12 V. Exceeding 13.2 V risks permanent damage. At 12 V, it maintains rail-to-rail output swing and 4.5 MHz bandwidth, making it suitable for industrial 12 V rail applications without external regulators. LMV842MM/NOPB must not be operated beyond its absolute maximum ratings under any condition.
Does LMV842MM/NOPB support true rail-to-rail input at 3.3 V supply?
Yes, LMV842MM/NOPB supports rail-to-rail input with common-mode voltage range from V− – 0.1 V to V+ + 0.2 V at 3.3 V supply - meaning it accepts inputs from –0.1 V to 3.5 V. This enables direct interfacing with sensors that swing below ground or above V+, such as bridge-based strain gauges with offset references. LMV842MM/NOPB achieves this via its CMOS input stage and internal level-shifting circuitry.
What is the thermal resistance (RθJA) of the LMV842MM/NOPB VSSOP package?
The junction-to-ambient thermal resistance (RθJA) for LMV842MM/NOPB in the 8-pin VSSOP (DGK) package is 179.2°C/W, measured on a standard JEDEC 2S2P test board. This value assumes standard PCB copper pour and no added heatsinking. LMV842MM/NOPB can safely dissipate up to ~350 mW at 25°C ambient before reaching its 150°C max junction temperature, supporting continuous dual-channel operation in compact enclosures.
Can LMV842MM/NOPB drive capacitive loads up to 100 pF without oscillation?
Yes, LMV842MM/NOPB maintains 67° phase margin with capacitive loads up to 100 pF, as verified in Figure 20 of the datasheet. Its internal compensation ensures stability in DAC buffer and active filter configurations where load capacitance arises from PCB traces or downstream ADC inputs. LMV842MM/NOPB does not require external isolation resistors for loads ≤100 pF, simplifying layout and reducing component count.
Is LMV842MM/NOPB suitable for automotive applications?
Yes, LMV842MM/NOPB is qualified for operation from –40°C to +125°C and meets AEC-Q100 stress test requirements for Grade 1 temperature range. Its 12 V supply capability, high PSRR (108 dB), and robust ESD protection (±2000 V HBM) make it suitable for engine control modules, cabin sensor hubs, and ADAS pre-processing stages. LMV842MM/NOPB is widely deployed in automotive-grade designs requiring precision analog signal conditioning.
LMV842MM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-TSSOP, 8-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:
- 2.5V/µs
- Gain Bandwidth Product:
- 4.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 pA
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 1.03mA (x2 Channels)
- Current - Output / Channel:
- 37 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:
- 8-VSSOP
LMV842MM/NOPB FAQ
1.How can I place an order for LMV842MM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV842MM/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 LMV842MM/NOPB reliable?
The price and inventory of LMV842MM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV842MM/NOPB is usually 5 days.
3.What payment methods are accepted for LMV842MM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV842MM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV842MM/NOPB?
LMV842MM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV842MM/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 LMV842MM/NOPB?
For technical support, including LMV842MM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV842MM/NOPB requirements.
6.How does Aetrix verify that LMV842MM/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV842MM/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 LMV842MM/NOPB meets industry standards.
7.What is the process for return or replacement of LMV842MM/NOPB?
All LMV842MM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV842MM/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 LMV842MM/NOPB part is unused and in its original packaging.
Return procedure for LMV842MM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV842MM/NOPB Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
