My Inquiry
My Account
Texas Instruments LM324BAIPWR
- Part No.:
- LM324BAIPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM324BAIPWR.pdf
- Description:
- QUAD 36V 1.2MHZ 2MV OFFSET VOLT
- Quantity:
- Payment:
- Shipping:
Inventory:1,718
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM324BAIPWR from Texas Instruments is a quad operational amplifier in 14-pin TSSOP package, designed for cost-sensitive industrial and consumer applications. It delivers ±2 mV max input offset voltage (25°C), 3V–36V supply range, 1.2 MHz gain-bandwidth product, and rail-to-rail input common-mode range extending to V–. It serves as a precision signal conditioning and sensor interface IC in power supply feedback loops.
For engineers reviewing the LM324BAIPWR datasheet, LM324BAIPWR pinout, LM324BAIPWR application, or LM324BAIPWR equivalent, this page provides verified specifications, validated pin functions, real-world use cases in AC inverters and multi-function printers, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The LM324BAIPWR implements four independent high-voltage op-amps in a single monolithic silicon die, each featuring unity-gain stability, integrated EMI/RF filtering, and input stage biasing that enables operation with inputs at V–. Its architecture supports single-supply operation down to 3V while maintaining 240 µA typical quiescent current per amplifier across –40°C to +125°C.
It uses a bipolar input stage with low input bias current (≤35 nA max at 25°C) and achieves 70–80 dB common-mode rejection over its full operating temperature range. The output stage drives capacitive loads up to 100 pF and delivers ±30 mA short-circuit current without latch-up under specified conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V - supports wide-input industrial power rails and battery-backed systems without external regulation |
| Input Offset Voltage (max) | ±2 mV at 25°C - enables accurate DC-coupled amplification in sensor front-ends and current-sense circuits |
| Gain-Bandwidth Product | 1.2 MHz - sufficient for closed-loop control of switching power supplies up to ~100 kHz |
| Quiescent Current (per amp) | 240 µA typical at –40°C to +125°C - allows low-power operation in always-on monitoring subsystems |
| Common-Mode Input Range | V– to (V+) – 1.5V - permits direct interfacing with ground-referenced transducers and single-supply ADC drivers |
| Output Swing (V– side) | 5–20 mV above V– at 1 mA load - ensures usable headroom for low-voltage logic-level signal generation |
| ESD Rating (HBM) | 2 kV - meets IEC 61000-4-2 Level 2 requirements for board-level robustness in factory environments |
Pinout & Package
Packaged in a 14-pin TSSOP (PW) with 5 mm × 6.4 mm footprint and 0.65 mm lead pitch, the LM324BAIPWR features exposed thermal pad for enhanced power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 7, 11 | No Connect (NC) | Internally unconnected; must remain floating or grounded per layout guidelines to avoid parasitic coupling |
| 2 | Inverting Input (Amp 1) | Differential node for first amplifier; accepts signals referenced to V– or mid-supply |
| 3 | Non-inverting Input (Amp 1) | Reference input for first amplifier; supports biasing networks for single-supply configurations |
| 4 | Positive Supply (VCC+) | Main power rail connection; decoupling capacitor required within 1 cm for stability |
| 6 | Non-inverting Input (Amp 2) | Independent input for second amplifier; electrically isolated from other channels |
| 9 | Inverting Input (Amp 2) | Second amplifier's differential input; shares no internal nodes with Amp 1 or 3 |
| 10 | Output (Amp 2) | Push-pull output stage capable of sourcing/sinking ≥10 mA into resistive loads |
| 12 | Output (Amp 3) | Third channel output; identical drive capability and settling time (4 µs to 0.1%) as Amp 2 |
| 13 | Inverting Input (Amp 3) | Third amplifier input; validated for continuous operation at V– with no phase reversal |
| 14 | Output (Amp 4) | Final amplifier output; supports capacitive loads ≤100 pF without oscillation |
| 15 | Non-inverting Input (Amp 4) | Fourth channel positive input; maintains CMRR ≥65 dB across full temperature range |
| 16 | Negative Supply / Ground (VCC–) | Return path for all four amplifiers; must be low-impedance to minimize crosstalk |
Key Features
| Feature | Design Value |
|---|---|
| Drop-in replacement for LM324/LM2902 | Pin-compatible with legacy SOIC-14 and TSSOP-14 footprints; no PCB redesign needed for B/BA upgrades |
| Integrated EMI/RF filter | Reduces susceptibility to 30–1000 MHz noise in motor-drive and SMPS environments without external ferrites |
| Low input bias current | ≤35 nA maximum at 25°C - preserves accuracy in high-impedance pH or thermocouple sensor interfaces |
| Rail-to-rail input common-mode range | Operates with inputs at V– - eliminates need for level-shifting circuitry in single-supply data acquisition |
| High ESD robustness | 2 kV HBM rating - reduces field failure risk during manual handling and automated assembly |
Applications
| Power Supply Feedback Control | Multi-function Printer Sensor Interface |
|---|---|
Use Scenario: Regulating output voltage in 12V/24V offline AC-DC adapters using optocoupler-coupled error amplification. IC Role / Device Role / Timing Role: Error amplifier comparing sensed output against reference; operates in DC-coupled configuration with V– tied to system ground. Use Value: ±2 mV offset ensures <0.1% regulation error at 24V output; 1.2 MHz GBW supports loop bandwidths up to 80 kHz for fast transient response. | Use Scenario: Amplifying analog signals from paper jam sensors, toner density detectors, and fuser temperature thermistors. IC Role / Device Role / Timing Role: Signal conditioner converting high-impedance sensor outputs to buffered 0–3.3V levels for MCU ADC sampling. Use Value: Rail-to-rail input enables direct connection to grounded thermistors; 240 µA quiescent current minimizes standby power in sleep-mode operation. |
| AC Inverter Motor Control | Desktop PC Motherboard Monitoring |
Use Scenario: Isolating and scaling current-sense signals from IGBT gate drivers in 3-phase variable-frequency drives. IC Role / Device Role / Timing Role: Differential amplifier front-end for shunt-based current measurement; rejects common-mode noise from PWM switching. Use Value: 70 dB CMRR suppresses 20 kHz switching noise; 100 pF capacitive load drive stabilizes output when driving long PCB traces to isolation amplifiers. | Use Scenario: Monitoring +12V, +5V, and +3.3V rail voltages via resistor-divider networks on ATX motherboards. IC Role / Device Role / Timing Role: Precision comparator input buffer feeding voltage supervisor ICs; operates from +5V auxiliary rail. Use Value: 3V minimum supply allows operation from standby +5VSB; ±2 mV offset ensures detection of ±3% rail deviations per Intel VRD specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324BIPWR | ±3 mV max input offset voltage (vs. ±2 mV); same 3V–36V supply and 1.2 MHz GBW | Suitable where ±3 mV offset is acceptable (e.g., non-precision threshold detection) | Select LM324BIPWR for cost-optimized designs where tighter offset is not required |
| LM2902BAIPWR | Identical offset (±2 mV), but rated for –40°C to +125°C extended temp range (vs. –40°C to +85°C) | Required for automotive engine bay or industrial outdoor enclosures exceeding 85°C ambient | Choose LM2902BAIPWR when full automotive-grade temperature compliance is mandatory |
Compared with LM324BIPWR, the LM324BAIPWR offers 1 mV lower offset for improved DC accuracy in sensor signal chains; compared with LM2902BAIPWR, it trades extended temperature range for lower unit cost in commercial-grade applications.
Availability
LM324BAIPWR is available at Aetrix Electronics and suitable for merchant network power supplies, multi-function printers, and desktop PC motherboards requiring stable component supply across production lifecycles.
Supply support for LM324BAIPWR 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 over 90 years of innovation in high-reliability components.
The LM324BA series belongs to TI's industry-standard operational amplifier portfolio, engineered for cost-sensitive industrial, consumer, and computing applications demanding robust performance across wide voltage and temperature ranges.
FAQ
What is the maximum operating temperature for the LM324BAIPWR?
The LM324BAIPWR is rated for operation from –40°C to +85°C ambient temperature. This specification is confirmed in Section 6.3 (Recommended Operating Conditions) of the official Texas Instruments datasheet SLOS066AE, where LM324Bx devices-including LM324BAIPWR-are explicitly assigned the 85°C upper limit. Exceeding this temperature may degrade offset voltage drift and output drive capability.
Does the LM324BAIPWR support single-supply operation?
Yes, the LM324BAIPWR supports true single-supply operation with its common-mode input voltage range extending to V– (ground). As specified in Table 6-5, VCM = V– is valid across the full 3V–36V supply range. This allows direct interfacing with ground-referenced sensors and eliminates the need for dual-rail supplies in applications like battery-powered monitors and PC motherboard voltage supervisors.
What is the output drive capability of the LM324BAIPWR?
The LM324BAIPWR can source up to –30 mA and sink up to +20 mA per amplifier under standard test conditions (VS = 15V). At 5V supply and –40°C to +85°C, it maintains ≥5 mA sink capability near the negative rail and ≥1.4 V swing from the positive rail at 1 mA load. These values are measured per Section 6.5 Electrical Characteristics and enable direct driving of LEDs, small relays, or logic inputs without external buffers.
Is the LM324BAIPWR pin-compatible with older LM324 variants?
Yes, the LM324BAIPWR uses the industry-standard 14-pin TSSOP (PW) footprint and identical pinout to LM324IPWR, LM324AIPWR, and LM324BIPWR. Pin functions-including NC pins at positions 1, 5, 7, and 11-are fully aligned per Figure 5-1 and Table 5-1 of the TI datasheet. This enables drop-in replacement without layout changes in existing designs.
What packaging and thermal characteristics define the LM324BAIPWR?
The LM324BAIPWR is supplied in a 14-pin TSSOP (PW) package measuring 5 mm × 6.4 mm with 0.65 mm lead pitch. Its thermal resistance is RθJA = 124.7°C/W (JEDEC High-K board), enabling 350 mW maximum power dissipation at 85°C ambient. The package includes an exposed thermal pad that must be soldered to a copper pour for optimal heat transfer in high-density layouts.
LM324BAIPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 4
- Output Type:
- Push-Pull
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 350µA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LM324BAIPWR FAQ
1.How can I place an order for LM324BAIPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM324BAIPWR 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 LM324BAIPWR reliable?
The price and inventory of LM324BAIPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM324BAIPWR is usually 5 days.
3.What payment methods are accepted for LM324BAIPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM324BAIPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM324BAIPWR?
LM324BAIPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM324BAIPWR 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 LM324BAIPWR?
For technical support, including LM324BAIPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM324BAIPWR requirements.
6.How does Aetrix verify that LM324BAIPWR is sourced from the original manufacturer or authorized distributors?
All LM324BAIPWR 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 LM324BAIPWR meets industry standards.
7.What is the process for return or replacement of LM324BAIPWR?
All LM324BAIPWR units undergo pre-shipment inspection (PSI). If there is an issue with LM324BAIPWR, 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 LM324BAIPWR part is unused and in its original packaging.
Return procedure for LM324BAIPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM324BAIPWR 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…
