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Texas Instruments LMV604MT/NOPB
- Part No.:
- LMV604MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV604MT/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,260
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Product details
Overview
LMV604MT/NOPB from Texas Instruments is a quad, rail-to-rail output, low-power operational amplifier optimized for battery-powered and space-constrained systems. It operates from a single 2.7-V to 5.5-V supply, draws 100 µA per amplifier (typ), delivers 1-MHz gain bandwidth, and features 20 fA input bias current and 0.55 mV typical input offset voltage - enabling precision signal conditioning in portable medical sensors and battery monitoring circuits.
For engineers reviewing the LMV604MT/NOPB datasheet, LMV604MT/NOPB pinout, LMV604MT/NOPB application, or LMV604MT/NOPB equivalent, key selection criteria include its quad-channel TSSOP-14 package, rail-to-rail output swing within 30 mV of rails, −40°C to +125°C industrial-plus temperature range, and compatibility with low-voltage sensor front-ends requiring ultra-low input current and stable DC accuracy.
Technical Context
The LMV604MT/NOPB implements a PMOS-input, Class AB turnaround stage architecture that enables ultra-low input bias current (20 fA) while maintaining 1-V/µs slew rate and 1-MHz GBW. Its rail-to-rail output stage uses complementary common-source transistors driven by a low-quiescent-current folded cascode, minimizing offset drift (1.7 µV/°C) and voltage noise (39 nV/√Hz at 1 kHz).
Unlike the LMV601 (which includes shutdown), the LMV604MT/NOPB lacks a dedicated shutdown pin and operates continuously across its full supply and temperature range. It supports dual-supply operation (±1.35 V to ±2.75 V) and maintains >80 dB CMRR over 0–4 V common-mode input range at 5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V single supply - supports direct connection to Li-ion cell or 3.3-V logic rails without level-shifting. |
| Quiescent Current per Amp | 100 µA (typ) - enables four independent amplifiers to operate continuously on <400 µA total, critical for always-on sensor nodes. |
| Gain Bandwidth Product | 1 MHz - sufficient for anti-aliasing filters, active RC low-pass stages up to ~100 kHz, and buffered reference scaling. |
| Input Bias Current | 20 fA (typ) - minimizes voltage error in high-impedance pH, photodiode, or thermistor interfaces (>100 MΩ source impedance). |
| Input Offset Voltage | 0.55 mV (typ) - ensures ≤0.5% gain error in unity-gain buffer or 10× inverting amplifier configurations at room temperature. |
| Output Swing | Within 30 mV of rails (RL = 10 kΩ) - preserves dynamic range when driving ADC inputs or low-voltage comparators. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive modules, industrial PLC I/O, and extended-environment portable equipment. |
Pinout & Package
LMV604MT/NOPB is packaged in a 14-pin TSSOP (PW package), 5.00 mm × 4.40 mm body size, with exposed pad for thermal enhancement. Pin pitch is 0.65 mm; recommended PCB footprint follows TI's PW package drawing (SLMA005).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Output, Channel A | Amplified output of first op-amp; rail-to-rail capable; must not be shorted to V+ or V− to avoid reliability degradation. |
| 2 (–INA) | Inverting Input, Channel A | Differential input node for Channel A; high-impedance PMOS gate - sensitive to ESD and layout parasitics. |
| 3 (+INA) | Noninverting Input, Channel A | Differential input node for Channel A; accepts common-mode voltages from 0 V to 4 V at 5 V supply. |
| 4 (V−) | Negative Supply | Ground reference for single-supply operation; connects to system GND; serves as return path for all four amplifiers. |
| 5 (+INB) | Noninverting Input, Channel B | Independent input for second op-amp; electrically isolated from other channels per datasheet crosstalk spec (≥140 dB @ 1 kHz). |
| 6 (–INB) | Inverting Input, Channel B | Second differential pair input; identical electrical characteristics to Channel A inputs. |
| 7 (OUTB) | Output, Channel B | Second rail-to-rail output; shares V− and V+ with other channels but has independent small-signal behavior. |
| 8 (OUTC) | Output, Channel C | Third output; verified stable with capacitive loads up to 100 pF per Figure 26 in datasheet. |
| 9 (–INC) | Inverting Input, Channel C | Third differential input; validated for use in multi-stage filtering where channel isolation prevents inter-stage coupling. |
| 10 (+INC) | Noninverting Input, Channel C | Third noninverting input; supports common-mode rejection in 3-phase current sensing or triad sensor conditioning. |
| 11 (V+) | Positive Supply | Highest potential supply rail; decoupling capacitor (0.1 µF ceramic) required within 5 mm per layout guidelines. |
| 12 (+IND) | Noninverting Input, Channel D | Fourth input; enables simultaneous processing of four analog signals without multiplexing latency. |
| 13 (–IND) | Inverting Input, Channel D | Fourth differential input; matches input capacitance (2.5 pF typ) and bias current of other channels. |
| 14 (OUTD) | Output, Channel D | Fourth rail-to-rail output; tested for THD+N ≤0.012% at 1 kHz, 1 VPP into 600 Ω load at 5 V supply. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 30 mV of V+ and V− at 10-kΩ load - maximizes usable signal range in 3.3-V or lower systems. |
| Ultra-low input bias current | 20 fA typical - reduces IR drop errors in megohm-range sensor interfaces (e.g., electrochemical gas sensors). |
| 1-MHz gain bandwidth | Stable at unity gain with 200-pF capacitive load - supports direct driving of ADC sample capacitors or long cables. |
| −40°C to +125°C operation | Specified performance across full range - eliminates derating calculations for automotive cabin or industrial motor control applications. |
| Low input offset voltage drift | 1.7 µV/°C (2.7 V supply) - limits temperature-induced error to <0.2 mV over 85°C ambient delta, critical for precision instrumentation. |
| Quad-channel integration | Four matched amplifiers in one TSSOP-14 - reduces PCB area by ~60% vs discrete SOIC-8 duals and improves channel-to-channel tracking. |
Applications
| Battery Monitoring | Portable Medical Sensors |
|---|---|
Use Scenario: Real-time measurement of individual cell voltage in 3S Li-ion packs using resistive dividers. IC Role / Device Role / Timing Role: Quad buffer for four divider outputs, rejecting common-mode noise while preserving millivolt-level resolution. Use Value: 20 fA input bias avoids loading 1-MΩ dividers; 0.55 mV VOS ensures <0.5% absolute cell voltage error at 4.2 V. |
Use Scenario: Signal conditioning for disposable ECG electrodes with high electrode-skin impedance (>100 kΩ). IC Role / Device Role / Timing Role: First-stage noninverting amplifier with gain = 10, providing low-noise, high-Z input and rail-to-rail output to ADC driver. Use Value: 39 nV/√Hz input voltage noise and 1-MHz GBW support clean 0.05–150 Hz ECG bandpass without added filtering. |
| Industrial Process Transmitters | PCMCIA Audio Interfaces |
Use Scenario: 4–20 mA loop-powered transmitter with local sensor signal conditioning and HART modulation support. IC Role / Device Role / Timing Role: Quad op-amp implementing I/V conversion, cold-junction compensation, linearization, and output buffering. Use Value: −40°C to +125°C rating enables operation inside field-mounted enclosures; 100 µA per amp minimizes loop power consumption. |
Use Scenario: Low-profile audio line driver and microphone preamp in PCMCIA sound cards with tight board height constraints. IC Role / Device Role / Timing Role: Dual-channel gain stage (Ch A/B) for line-out; dual-channel mic preamp (Ch C/D) with adjustable gain via feedback network. Use Value: TSSOP-14 footprint fits PCMCIA Type II card height limit (<5.5 mm); rail-to-rail output drives 600-Ω audio loads to full scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Higher supply current (550 µA/amp), higher VOS (1.6 mV), but higher GBW (6.4 MHz) and better drive capability (30 mA). | Better suited for higher-speed active filters or driving heavier loads; less optimal for ultra-low-power always-on sensing. | Select TLV2464IDR when speed or output current outweighs quiescent power budget; avoid if battery life >1 year is required. |
| LPV821MRX/NOPB | Lower supply current (650 nA/amp), lower bandwidth (10 kHz), single-channel only, no quad variant available. | Targeted at nanowatt sensor wake-up circuits; insufficient for multi-channel simultaneous acquisition. | Choose LPV821MRX/NOPB only for single-ended, sub-10-kHz, ultra-low-IQ applications; not a functional replacement for LMV604MT/NOPB's quad functionality. |
Compared with TLV2464IDR and LPV821MRX/NOPB, LMV604MT/NOPB uniquely balances 1-MHz bandwidth, quad integration, 100-µA/amp quiescent current, and rail-to-rail output - making it the only option among the three suitable for multi-channel, battery-powered signal chains requiring both precision and responsiveness.
Availability
LMV604MT/NOPB is available at Aetrix Electronics and suitable for battery monitoring, portable medical sensors, and industrial process transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV604MT/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 low-power signal chain solutions.
The LMV60x family was designed specifically for low-voltage, general-purpose applications in portable and battery-operated electronics - emphasizing rail-to-rail output, ultra-low input bias current, and robust operation from 2.7 V to 5.5 V.
FAQ
What is the maximum capacitive load the LMV604MT/NOPB can drive stably?
The LMV604MT/NOPB is characterized for stable operation with capacitive loads up to 100 pF when configured as a unity-gain buffer (Figure 26, datasheet). For loads exceeding 100 pF - such as ADC input capacitors or long traces - external series resistance (typically 10–50 Ω) between the output and load is required to maintain phase margin >72° and prevent peaking or oscillation. This applies identically across all four channels of the LMV604MT/NOPB.
Does the LMV604MT/NOPB have a shutdown pin?
No, the LMV604MT/NOPB does not include a shutdown pin. Shutdown functionality is exclusive to the LMV601 single-channel variant. The LMV604MT/NOPB operates continuously whenever powered within its specified supply and temperature range. If power gating is required, external MOSFET control of the V+ or V− rail must be implemented, with attention to sequencing and transient behavior during enable/disable transitions.
Can the LMV604MT/NOPB operate on dual supplies?
Yes, the LMV604MT/NOPB supports dual-supply operation from ±1.35 V to ±2.75 V (equivalent to 2.7 V to 5.5 V total supply). When used in dual-supply mode, V− becomes the negative rail (e.g., −2.7 V) and V+ becomes the positive rail (e.g., +2.7 V). Input common-mode range extends to within 0.2 V of each rail, and output swings rail-to-rail - enabling true bipolar signal processing without level-shifting circuitry.
What is the typical input-referred voltage noise of the LMV604MT/NOPB at 1 kHz?
The LMV604MT/NOPB exhibits 39 nV/√Hz typical input-referred voltage noise at 1 kHz under 5-V supply conditions (Section 6.8, Electrical Characteristics – AC (5 V)). At 2.7 V supply, the value is 40 nV/√Hz (Section 6.6). This noise level is consistent across all four channels and remains stable over temperature, supporting low-noise amplification in sensor front-ends where signal amplitudes are in the microvolt range.
Is the LMV604MT/NOPB pin-compatible with other quad op-amps in TSSOP-14 packages?
No, the LMV604MT/NOPB has a proprietary pinout optimized for signal integrity and thermal performance - it is not pin-compatible with generic quad op-amps like the TL074 or LM324 in TSSOP-14. Specifically, V− is on Pin 4 (not Pin 11 as in many legacy parts), and the channel input/output ordering differs. PCB layout must follow the exact pin mapping shown in Section 5 (Pin Configuration and Functions) of the LMV604 datasheet to ensure correct operation.
LMV604MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- 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:
- 1V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.02 pA
- Voltage - Input Offset:
- 550 µV
- Current - Supply:
- 100µA (x4 Channels)
- Current - Output / Channel:
- 113 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:
- 14-TSSOP
LMV604MT/NOPB FAQ
1.How can I place an order for LMV604MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV604MT/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 LMV604MT/NOPB reliable?
The price and inventory of LMV604MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV604MT/NOPB is usually 5 days.
3.What payment methods are accepted for LMV604MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV604MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV604MT/NOPB?
LMV604MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV604MT/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 LMV604MT/NOPB?
For technical support, including LMV604MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV604MT/NOPB requirements.
6.How does Aetrix verify that LMV604MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV604MT/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 LMV604MT/NOPB meets industry standards.
7.What is the process for return or replacement of LMV604MT/NOPB?
All LMV604MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV604MT/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 LMV604MT/NOPB part is unused and in its original packaging.
Return procedure for LMV604MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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