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Texas Instruments LPV324MT/NOPB
- Part No.:
- LPV324MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LPV324MT/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,159
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Product details
Overview
LPV324MT/NOPB from Texas Instruments is a quad-channel, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5 V), micropower (28 µA total supply current at 5 V) general-purpose applications. It delivers 152 kHz gain-bandwidth product, −40°C to +85°C industrial temperature range, and output swing within 3.5 mV of V+ and 90 mV of V− at 100 kΩ load-enabling precision signal conditioning in battery-powered portable instrumentation.
For engineers reviewing the LPV324MT/NOPB datasheet, LPV324MT/NOPB pinout, LPV324MT/NOPB application, or LPV324MT/NOPB equivalent, key selection considerations include its quad-channel rail-to-rail output architecture, 28 µA total quiescent current, SOIC-14 or TSSOP-14 package options, and compatibility with single-supply systems requiring ground-sensing input and wide dynamic range.
Technical Context
The LPV324MT/NOPB employs a bipolar input stage and BiCMOS process for improved noise performance (146 nV/√Hz at 1 kHz) and higher output drive capability (16 mA sinking, 11 mA sourcing). Its input common-mode voltage range extends to −0.2 V (below ground) and up to V+ − 0.8 V, supporting true single-supply operation with ground-referenced sensing.
It achieves stable unity-gain operation with up to 200 pF capacitive load without external compensation, and exhibits 87° phase margin and 19 dB gain margin at 5 V. The device operates across 2.7 V–5 V supplies and maintains specified DC accuracy-including 1.5 mV max input offset voltage and 50 dB min CMRR-over the full −40°C to +85°C range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad - enables compact multi-stage analog signal chains without discrete op amp duplication |
| Supply Voltage Range | 2.7 V to 5 V - supports direct connection to Li-ion, alkaline, or regulated 3.3 V rails without level shifting |
| Quiescent Current (Total) | 28 µA at 5 V - extends battery life in always-on sensor nodes and wearable devices |
| Gain-Bandwidth Product | 152 kHz - sufficient for DC-coupled instrumentation, active filtering below 10 kHz, and slow-settling sensor interfaces |
| Rail-to-Rail Output Swing | V+ −3.5 mV / V−+90 mV at 100 kΩ - maximizes usable dynamic range in low-voltage systems (e.g., 3.3 V ADC reference) |
| Input Common-Mode Range | −0.2 V to V+−0.8 V - allows direct interface to ground-referenced transducers and single-ended sensors |
| Input Offset Voltage (max) | 10 mV over temperature - suitable for non-critical amplification where trimming is not required |
Pinout & Package
LPV324MT/NOPB is available in 14-pin SOIC (D) and TSSOP (PW) packages. Both share identical pinout and electrical characteristics; SOIC measures 8.65 mm × 3.91 mm, TSSOP 5.00 mm × 4.40 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives downstream stages or ADC inputs with rail-to-rail swing |
| 2 | IN− A | Inverting input, channel A - accepts feedback or differential signal in standard op amp configurations |
| 3 | IN+ A | Noninverting input, channel A - connects to sensor, reference, or signal source with ground-sensing capability |
| 4 | V− | Negative supply rail - tied to GND in single-supply operation; supports dual-supply down to ±1.35 V |
| 5 | IN+ B | Noninverting input, channel B - independent input for second signal path (e.g., reference buffer) |
| 6 | IN− B | Inverting input, channel B - used for differential pair or independent gain stage |
| 7 | OUT B | Amplifier B output - provides second independent output without cross-talk degradation |
| 8 | OUT C | Amplifier C output - enables three-stage signal chain (e.g., gain → filter → level shift) |
| 9 | IN− C | Inverting input, channel C - supports third independent amplifier function |
| 10 | IN+ C | Noninverting input, channel C - accommodates additional sensor or reference input |
| 11 | V+ | Positive supply rail - powers all four amplifiers; decoupling capacitor required near pin |
| 12 | IN+ D | Noninverting input, channel D - completes quad-channel set for multi-sensor or multi-function systems |
| 13 | IN− D | Inverting input, channel D - enables fourth independent op amp configuration |
| 14 | OUT D | Amplifier D output - delivers final conditioned signal or drives multiple loads simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale output headroom on 2.7 V–5 V rails, preserving ADC resolution and minimizing clipping in low-voltage systems |
| Ground-sensing input range | Accepts signals down to −0.2 V, enabling direct interface with 0 V–reference transducers and single-ended sensors |
| Micropower operation (28 µA) | Reduces system-level power budget by >90% vs standard rail-to-rail op amps, critical for coin-cell or energy-harvesting designs |
| 200 pF capacitive load drive | Eliminates need for isolation resistors when driving ADC input capacitance or long PCB traces, simplifying layout |
| Bipolar input stage | Provides lower input voltage noise (146 nV/√Hz) and higher output current (16 mA sink) than CMOS alternatives at same current |
Applications
| Active Low-Pass Filtering | Portable Sensor Signal Conditioning |
|---|---|
Use Scenario: Implementing a 1st-order anti-aliasing filter before a 10-bit SAR ADC in a handheld environmental monitor. IC Role / Device Role / Timing Role: LPV324MT/NOPB serves as unity-gain buffer and RC-based low-pass stage, isolating sensor output and limiting bandwidth to <5 kHz. Use Value: Rail-to-rail output ensures full 0–3.3 V ADC input range utilization; 28 µA quiescent current extends battery life beyond 1 year on two AA cells. | Use Scenario: Amplifying thermistor and photodiode outputs in a wearable health patch with space-constrained PCB. IC Role / Device Role / Timing Role: LPV324MT/NOPB provides four independent gain stages-one per sensor-with shared 3.3 V supply and ground-referenced inputs. Use Value: Quad integration reduces component count by 75% vs discrete singles; SOIC-14 footprint fits within 12 mm² area budget. |
| Multi-Channel Instrumentation Amplifier | Low-Voltage Reference Buffering |
Use Scenario: Building a 3-op-amp instrumentation amplifier for ECG front-end with high CMRR and >100 MΩ input impedance. IC Role / Device Role / Timing Role: LPV324MT/NOPB supplies all three op amps: two voltage followers for input buffering and one difference amplifier for output stage. Use Value: Matched DC specs across channels minimize inter-channel offset drift; 152 kHz GBW supports DC–1 kHz biopotential bandwidth. | Use Scenario: Buffering a precision 2.5 V voltage reference to drive multiple ADCs and DACs in a low-power data acquisition module. IC Role / Device Role / Timing Role: LPV324MT/NOPB operates as unity-gain buffer (channel A), providing low-output-impedance, rail-to-rail drive to distributed loads. Use Value: 16 mA sink capability handles combined load currents; 10 mV max VOS avoids introducing measurable error into 12-bit conversion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-voltage op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Higher supply current (550 µA/channel), 6.4 MHz GBW, rail-to-rail I/O, wider VCC range (2.7–6 V) | Better for higher-speed signal paths (>100 kHz); unsuitable for ultra-low-power battery operation | Select TLV2464IDR only when speed or rail-to-rail input is required; LPV324MT/NOPB remains optimal for <10 kHz, sub-100 µA designs |
| LMV324DR | Higher supply current (210 µA/channel), 1 MHz GBW, rail-to-rail output only, no ground-sensing input (VCM = 0 to V+−1.5 V) | Limited to applications where input stays above 0 V; less suitable for true single-supply sensor interfacing | Choose LMV324DR for cost-sensitive, non-ground-sensing applications; LPV324MT/NOPB preferred when −0.2 V input range or 28 µA operation is mandatory |
Compared with TLV2464IDR and LMV324DR, LPV324MT/NOPB uniquely balances micropower consumption (28 µA), ground-sensing input, and rail-to-rail output in a quad configuration-making it the only option among the three viable for battery-powered, ground-referenced, low-bandwidth signal chains.
Availability
LPV324MT/NOPB is available at Aetrix Electronics and suitable for portable medical devices, battery-powered sensor nodes, and low-power industrial monitoring systems requiring stable component supply and long-term production continuity.
Supply support for LPV324MT/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, embedded processing, and connectivity technologies, with decades of op amp innovation and broad manufacturing scale.
The LPV3xx-N family was designed specifically for cost-sensitive, space-constrained, battery-operated applications demanding rail-to-rail output, ground-sensing input, and micropower efficiency-targeting portable instrumentation, wearables, and IoT edge nodes.
FAQ
What is the maximum capacitive load the LPV324MT/NOPB can drive without oscillation?
The LPV324MT/NOPB can directly drive up to 200 pF in unity-gain configuration without external compensation or stability issues. This is validated per TI's datasheet Figure 22–23 and Section 7.4.1. Exceeding this requires isolation resistors or feedback network adjustments. For designs using LPV324MT/NOPB in ADC driver roles, verify load capacitance including PCB trace and input pin contributions to stay within this limit.
Does the LPV324MT/NOPB support true single-supply operation with input signals at ground potential?
Yes. The LPV324MT/NOPB features an input common-mode voltage range extending to −0.2 V (below ground) at 25°C, enabling direct interface with ground-referenced sensors and transducers in single-supply systems. This is confirmed in Section 6.5 (VCM spec) and Section 7.3.7 of the datasheet. When operating LPV324MT/NOPB in such configurations, ensure input voltages do not fall below −0.3 V to avoid forward-biasing internal protection diodes.
What is the typical input voltage noise density of the LPV324MT/NOPB at 1 kHz?
The LPV324MT/NOPB has a typical input-referred voltage noise density of 146 nV/√Hz at 1 kHz and 5 V supply, as specified in Section 6.8 (AC Electrical Characteristics – 5 V). This value is measured under standard conditions (TJ = 25°C, RL > 1 MΩ) and reflects the device's bipolar input stage advantage over CMOS alternatives at similar quiescent current levels. Noise performance remains stable across the −40°C to +85°C operating range.
Can the LPV324MT/NOPB be used in dual-supply configurations?
Yes. The LPV324MT/NOPB supports dual-supply operation from ±1.35 V to ±2.5 V (equivalent to 2.7 V to 5 V total supply), as stated in Section 8.1. Its input common-mode and output swing specifications apply across both single- and dual-supply modes. When using LPV324MT/NOPB in dual-supply setups, observe absolute maximum ratings-particularly differential input voltage-and maintain symmetrical decoupling on both V+ and V− pins.
What are the thermal resistance values for the LPV324MT/NOPB in SOIC-14 package?
For the LPV324MT/NOPB in SOIC-14 (D) package, the junction-to-ambient thermal resistance (RθJA) is 103.9 °C/W, and junction-to-board (RθJB) is 58.4 °C/W, per Section 6.4 of the datasheet. These values assume standard JEDEC 2-layer board mounting. Designers using LPV324MT/NOPB in thermally constrained environments should calculate maximum power dissipation using PD = (TJ(MAX) − TA)/RθJA, with TJ(MAX) = 150°C.
LPV324MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- 0.1V/µs
- Gain Bandwidth Product:
- 152 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 28µA (x4 Channels)
- Current - Output / Channel:
- 16 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LPV324MT/NOPB FAQ
1.How can I place an order for LPV324MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV324MT/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 LPV324MT/NOPB reliable?
The price and inventory of LPV324MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV324MT/NOPB is usually 5 days.
3.What payment methods are accepted for LPV324MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV324MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV324MT/NOPB?
LPV324MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV324MT/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 LPV324MT/NOPB?
For technical support, including LPV324MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV324MT/NOPB requirements.
6.How does Aetrix verify that LPV324MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LPV324MT/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 LPV324MT/NOPB meets industry standards.
7.What is the process for return or replacement of LPV324MT/NOPB?
All LPV324MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LPV324MT/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 LPV324MT/NOPB part is unused and in its original packaging.
Return procedure for LPV324MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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