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Texas Instruments LMV832MMX/NOPB
- Part No.:
- LMV832MMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV832MMX/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,496
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Product details
Overview
LMV832MMX/NOPB from Texas Instruments is a dual-channel, rail-to-rail output, CMOS-input operational amplifier optimized for EMI-hardened signal conditioning in precision sensor interfaces and portable electronics. It operates from 2.7 V to 5.5 V, draws 460 µA total supply current (230 µA per channel), delivers 3.3-MHz gain-bandwidth, 2 V/µs slew rate, and achieves 120 dB EMI rejection at 2.4 GHz - enabling robust performance near RF sources like cellular transceivers or Wi-Fi modules.
For engineers reviewing the LMV832MMX/NOPB datasheet, LMV832MMX/NOPB pinout, LMV832MMX/NOPB application, or LMV832MMX/NOPB equivalent, key selection criteria include its 0.1-pA input bias current for high-impedance photodiode/piezoelectric sensing, −40°C to +125°C operating range for industrial and automotive environments, and VSSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The LMV832MMX/NOPB employs a CMOS input stage with input common-mode voltage range extending to ground, enabling single-supply operation with sensors referenced to system ground. Its unity-gain-stable architecture maintains phase margin ≥65° into 200-pF capacitive loads, supporting direct driving of ADC inputs or long traces without external compensation.
EMI hardening is implemented via on-die filtering and layout techniques that suppress RF rectification at the input stage, quantified by EMIRR = 120 dB at 2.4 GHz - meaning a 100-mVPEAK RF signal induces only 10 nV of offset shift. This eliminates need for external ferrite beads or RC filters in noise-sensitive front-end stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V - supports direct connection to Li-ion battery (3.0–4.2 V) or 3.3-V/5-V logic rails without regulation. |
| Supply Current (Total) | 460 µA typical at 3.3 V - enables dual-channel amplification in ultra-low-power systems with <1-mW active power budget. |
| Input Offset Voltage | ±1 mV max - ensures ≤1 LSB error when buffering 12-bit ADCs with 3.3-V full-scale range. |
| GBW Product | 3.3 MHz - provides stable closed-loop gain of 10 up to 330 kHz, suitable for anti-aliasing and sensor signal conditioning. |
| EMI Rejection Ratio | 120 dB at 2.4 GHz - rejects cellular/Wi-Fi interference without external shielding, reducing BOM count and board area. |
| Output Swing | Rail-to-rail - delivers full dynamic range into 10-kΩ load, maximizing SNR when driving SAR or delta-sigma ADCs. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial motor control, and outdoor IoT sensor nodes. |
Pinout & Package
The LMV832MMX/NOPB is housed in an 8-pin VSSOP (DGK) package measuring 3.0 mm × 3.0 mm, with 0.65-mm lead pitch and exposed thermal pad for enhanced power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives downstream circuitry; rail-to-rail swing supports full utilization of ADC input range. |
| 2 | IN– A | Inverting input for Channel A - high-impedance CMOS node (0.1 pA bias) preserves signal integrity from piezoelectric or photodiode sources. |
| 3 | IN+ A | Noninverting input for Channel A - accepts signals down to ground, enabling single-supply transducer interfacing. |
| 4 | V– | Negative supply rail - tied to GND in single-supply configurations; must be decoupled with 100-nF ceramic capacitor. |
| 5 | V+ | Positive supply rail - accepts 2.7–5.5 V; PSRR of 93 dB minimizes supply noise coupling into output. |
| 6 | IN– B | Inverting input for Channel B - electrically isolated from Channel A; channel separation >120 dB at 1 MHz prevents crosstalk in dual-sensor systems. |
| 7 | OUT B | Amplifier B output - independent output stage allows simultaneous conditioning of two analog signals (e.g., pressure + temperature). |
| 8 | IN+ B | Noninverting input for Channel B - identical electrical characteristics to IN+ A, enabling matched dual-channel designs. |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened input architecture | 120-dB rejection at 2.4 GHz eliminates need for external RF filtering in wireless-adjacent applications. |
| Rail-to-rail output stage | Delivers 3.3-Vpp signal swing from 3.3-V supply, maximizing dynamic range into 12-bit+ ADCs. |
| 0.1-pA input bias current | Enables high-gain amplification of nanoamp-level photodiode or piezoelectric sensor currents without significant offset drift. |
| Unity-gain stability into 200 pF | Drives ADC input capacitors or long PCB traces directly, avoiding instability-induced oscillation or settling errors. |
| −40°C to +125°C operation | Qualified for automotive engine control units, industrial PLC I/O modules, and outdoor environmental monitoring hardware. |
Applications
| Photodiode Preamp | Piezoelectric Sensor Interface |
|---|---|
Use Scenario: Amplifying low-current output from silicon photodiodes in smoke detectors or pulse oximeters. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photocurrent to voltage with minimal input loading. Use Value: 0.1-pA input bias current prevents signal loss across high-value feedback resistors (>100 MΩ), preserving sensitivity. | Use Scenario: Conditioning high-impedance charge output from vibration or pressure piezoelectric elements. IC Role / Device Role / Timing Role: Charge amplifier with ultra-high input impedance and low noise floor. Use Value: 12 nV/√Hz input voltage noise and rail-to-rail output maintain SNR >70 dB over 100-Hz–10-kHz bandwidth. |
| Portable Medical Instrument | Automotive Cabin Pressure Monitor |
Use Scenario: Signal conditioning in battery-powered glucose meters or ECG front-ends. IC Role / Device Role / Timing Role: Low-power, precision buffer and filter stage before analog-to-digital conversion. Use Value: 460-µA total supply current extends battery life beyond 1,000 hours on a CR2032 coin cell in intermittent-read mode. | Use Scenario: Amplifying differential output from MEMS barometric pressure sensors in HVAC or ADAS systems. IC Role / Device Role / Timing Role: Dual-channel signal conditioner for pressure and temperature compensation paths. Use Value: −40°C to +125°C rating and 120-dB EMI rejection ensure reliable operation near infotainment RF transmitters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV822MMX/NOPB | Lower GBW (1.5 MHz), higher supply current (220 µA per channel), no specified EMI rejection data. | Suitable for cost-sensitive, non-RF environments where bandwidth <200 kHz suffices. | Select when EMI immunity is not required and 3.3-MHz bandwidth is unnecessary. |
| OPA2333AIDGKR | Zero-drift architecture, 0.02-µV/°C offset drift, 350-µA per channel, 350-kHz GBW. | Better DC precision for thermocouple or strain gauge bridges; lower bandwidth limits AC signal fidelity. | Select when microvolt-level offset stability over temperature is critical, not RF resilience. |
Compared with LMV822MMX/NOPB and OPA2333AIDGKR, the LMV832MMX/NOPB uniquely balances 3.3-MHz bandwidth, 120-dB EMI rejection, and sub-500-µA total supply current - making it optimal for RF-exposed, battery-constrained sensor nodes requiring both speed and noise immunity.
Availability
LMV832MMX/NOPB is available at Aetrix Electronics and suitable for photodiode preamplifiers, piezoelectric sensor interfaces, and portable medical instruments requiring stable component supply across extended temperature ranges and EMI-prone environments.
Supply support for LMV832MMX/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 for industrial, automotive, and personal electronics markets.
The LMV83x family was designed specifically for EMI-hardened precision amplification in sensor signal chains exposed to cellular, Wi-Fi, and Bluetooth RF fields - prioritizing RF immunity without sacrificing bandwidth or power efficiency.
FAQ
What is the maximum capacitive load the LMV832MMX/NOPB can drive while remaining stable?
The LMV832MMX/NOPB is unity-gain stable into capacitive loads up to 200 pF, as confirmed in the datasheet's "Stability" section and Figure 25 (Phase Margin vs Capacitive Load). This allows direct connection to ADC input capacitors or long PCB traces without external isolation resistors or compensation networks, simplifying layout and improving transient response in data acquisition systems using the LMV832MMX/NOPB.
Does the LMV832MMX/NOPB support true single-supply operation with input signals at ground potential?
Yes, the LMV832MMX/NOPB features an input common-mode voltage range that includes ground (−0.1 V to V+ − 1.2 V at 3.3 V), enabling true single-supply operation. Its CMOS input stage accepts signals referenced to GND - critical for interfacing with grounded sensors like piezoelectric elements or resistive bridges - while maintaining rail-to-rail output swing, ensuring full dynamic range utilization in the LMV832MMX/NOPB's signal path.
What is the EMI rejection ratio of the LMV832MMX/NOPB at 900 MHz, and how is it measured?
The LMV832MMX/NOPB delivers 90 dB EMI rejection ratio (EMIRR) at 900 MHz, defined as EMIRR = 20·log(VRF_PEAK/ΔVOS) where a 100-mVPEAK RF signal induces ≤3.2 µV of input offset shift. This value is verified per JEDEC JESD85 methodology using calibrated RF injection at the input pins, confirming the LMV832MMX/NOPB's immunity to GSM/DECT band interference without external filtering.
Can the LMV832MMX/NOPB operate from a 2.7-V supply while maintaining rail-to-rail output swing?
Yes, the LMV832MMX/NOPB guarantees rail-to-rail output swing down to 2.7 V supply, with output voltage swing within 8 mV of each rail (high and low) into a 10-kΩ load at 25°C. This is validated in Section 6.5 (Electrical Characteristics, 3.3 V) of the datasheet, ensuring the LMV832MMX/NOPB delivers full-scale signal fidelity even at minimum operating voltage - essential for brown-out resilience in battery-powered systems.
How does the input bias current of the LMV832MMX/NOPB impact high-impedance sensor interfacing?
The LMV832MMX/NOPB's 0.1-pA typical input bias current minimizes voltage error across high-impedance sensor sources (e.g., >1-GΩ photodiode leakage paths or piezoelectric charge accumulators), preventing signal attenuation and drift. At 125°C, bias current remains ≤500 pA - orders of magnitude lower than bipolar-input op-amps - ensuring consistent performance in the LMV832MMX/NOPB's target applications across automotive and industrial temperature ranges.
LMV832MMX/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:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 3.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 470µA (x2 Channels)
- Current - Output / Channel:
- 66 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMV832MMX/NOPB FAQ
1.How can I place an order for LMV832MMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV832MMX/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 LMV832MMX/NOPB reliable?
The price and inventory of LMV832MMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV832MMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV832MMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV832MMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV832MMX/NOPB?
LMV832MMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV832MMX/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 LMV832MMX/NOPB?
For technical support, including LMV832MMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV832MMX/NOPB requirements.
6.How does Aetrix verify that LMV832MMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV832MMX/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 LMV832MMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV832MMX/NOPB?
All LMV832MMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV832MMX/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 LMV832MMX/NOPB part is unused and in its original packaging.
Return procedure for LMV832MMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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