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Texas Instruments TLV2324IN
- Part No.:
- TLV2324IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2324IN.pdf
- Description:
- IC CMOS 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,705
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Product details
Overview
TLV2324IN from Texas Instruments is a quad, low-voltage, rail-to-rail output operational amplifier optimized for single-supply operation in battery-powered sensor signal conditioning. It delivers 27 µA typical supply current per channel at 2.7–8 V supply, 10 mV max input offset voltage at 25°C, and rail-to-rail output swing down to the negative rail - enabling precision amplification in smoke detectors, pressure transmitters, and portable instrumentation.
For engineers reviewing the TLV2324IN datasheet, TLV2324IN pinout, TLV2324IN application, or TLV2324IN equivalent, this page provides verified specifications, validated pin functions for the 14-pin PDIP (N) package, real-world use cases in field transmitter interfaces, and two confirmed alternative op-amps with documented functional trade-offs.
Technical Context
The TLV2324IN uses Texas Instruments' LinCMOS™ silicon-gate process to achieve ultra-low quiescent current (108 µA max total for all four channels) while maintaining high input impedance (10¹² Ω typical) and sub-picoampere input bias current. Its input common-mode range extends to VDD – 1 V at 25°C and includes the negative rail, supporting direct interfacing with ground-referenced sensors.
Each channel features unity-gain stable operation with 27 kHz typical bandwidth at 3 V and 85 kHz at 5 V, slew rate of 0.02–0.03 V/µs, and phase margin ≥28° across –40°C to +85°C - ensuring robust performance in low-power, high-impedance analog front-ends without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 8 V - supports direct connection to 3 V and 5 V logic rails and Li-ion battery systems without regulation |
| Supply Current (per channel) | 26 µA typ / 108 µA max at full temperature range - enables multi-year battery life in wireless sensor nodes |
| Input Offset Voltage | 10 mV max at 25°C - ensures <±1% gain error in 100× gain sensor amplifiers with 1 V output span |
| Common-Mode Input Range | Extends to negative rail and up to VDD – 1 V at 25°C - allows direct sensing of 0–VDD signals without level-shifting circuitry |
| Output Voltage Swing | Rail-to-rail low-side (to GND), up to VDD – 0.2 V high-side at 1 mA load - maximizes dynamic range in single-supply ADC driver stages |
| Unity-Gain Bandwidth | 27 kHz at 3 V / 85 kHz at 5 V - sufficient for DC–10 kHz sensor signal conditioning including thermocouple and strain gauge outputs |
| Input Bias Current | 0.6 pA typ at 25°C - preserves signal integrity when amplifying from >100 MΩ sources like pH electrodes or piezoresistive sensors |
Pinout & Package
TLV2324IN is supplied in a 14-pin plastic dual in-line package (PDIP, N package), 19.18 mm × 6.6 mm footprint, 3.3 mm height, through-hole mountable with 2.54 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 (Pin 1) | Output | Amplified output of Channel 1; capable of sourcing/sinking ±1 mA into resistive loads |
| 1IN– (Pin 2) | Input | Inverting input of Channel 1; matched to 1IN+ for precision differential gain configuration |
| 1IN+ (Pin 3) | Input | Noninverting input of Channel 1; accepts signals from 0 V to VDD – 1 V at 25°C |
| VDD+ (Pin 4) | Power | Positive supply terminal; must be decoupled with ≥0.1 µF ceramic capacitor near pin |
| 2IN+ (Pin 5) | Input | Noninverting input of Channel 2; electrically identical to 1IN+ with same CMVR and bias specs |
| 2IN– (Pin 6) | Input | Inverting input of Channel 2; supports standard inverting amplifier or transimpedance configurations |
| OUT2 (Pin 7) | Output | Amplified output of Channel 2; independent of OUT1 with no crosstalk above –80 dB |
| OUT3 (Pin 8) | Output | Amplified output of Channel 3; fully specified for drive capability and settling time per channel |
| 3IN– (Pin 9) | Input | Inverting input of Channel 3; shares same input stage architecture and ESD protection as other inputs |
| 3IN+ (Pin 10) | Input | Noninverting input of Channel 3; supports high-Z sensor buffering without loading effects |
| VDD– / GND (Pin 11) | Power | Ground reference for all four amplifiers; requires low-impedance connection to system ground plane |
| 4IN+ (Pin 12) | Input | Noninverting input of Channel 4; usable for reference buffer or auxiliary signal path |
| 4IN– (Pin 13) | Input | Inverting input of Channel 4; enables fourth independent gain stage in compact layout |
| OUT4 (Pin 14) | Output | Amplified output of Channel 4; rail-to-rail swing ensures compatibility with 3 V ADC inputs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 108 µA max total supply current across all four channels at –40°C to +85°C - reduces thermal drift and extends battery runtime |
| Rail-to-rail output swing | Drives to GND and within 200 mV of VDD at 1 mA - preserves full ADC input range in 3 V systems |
| High input impedance | 10¹² Ω typical input resistance - prevents loading of high-impedance sources such as thermistors and capacitive sensors |
| Single-supply optimized input range | Common-mode voltage includes GND and extends to VDD – 1 V - eliminates need for external bias networks in sensor interfaces |
| ESD protection | 2000 V HBM per MIL-STD-883C Method 3015.2 - enhances reliability during PCB handling and field deployment |
Applications
| Smoke Detector Signal Conditioning | Pressure Transmitter Front-End |
|---|---|
Use Scenario: Amplifies weak ionization chamber current (pA–nA) in residential smoke alarms powered by 9 V alkaline batteries. IC Role / Device Role / Timing Role: Quad-channel TLV2324IN configures one op-amp as transimpedance amplifier, two as active filters, and one as comparator reference buffer. Use Value: 27 µA/channel supply current enables >5 years of standby operation; rail-to-rail output drives microcontroller ADC directly without level shifters. |
Use Scenario: Conditions bridge output (10–100 mV full-scale) in industrial pressure transmitters operating from 3.3 V supply. IC Role / Device Role / Timing Role: TLV2324IN performs bridge excitation buffering, differential amplification, low-pass filtering, and 4–20 mA loop driver biasing. Use Value: 10¹² Ω input impedance prevents bridge imbalance; 10 mV VIO ensures <0.1% FS offset error after calibration at room temperature. |
| Portable Temperature Logger | Motion Detector Analog Front-End |
Use Scenario: Interfaces with thermistor or RTD in handheld environmental monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: TLV2324IN implements precision ratiometric measurement: one channel buffers reference voltage, two condition sensor legs, one drives ADC input. Use Value: Sub-pA input bias current avoids self-heating errors in high-resistance thermistors; 2.7 V minimum supply enables direct coin-cell (CR2032) operation. |
Use Scenario: Amplifies pyroelectric sensor output in battery-operated PIR motion detectors with wake-on-motion functionality. IC Role / Device Role / Timing Role: TLV2324IN provides high-gain AC-coupled amplification, bandpass filtering, and envelope detection before microcontroller wake-up trigger. Use Value: 68 nV/√Hz input noise ensures reliable detection of small IR-induced signals; ultra-low IDD minimizes average current draw during sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power, quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2424IN | Higher supply current (125 µA max), wider VIO range (2.5 mV typ), rail-to-rail input and output | Better for precision DC-coupled circuits requiring input rail-to-rail swing; less suitable for ultra-low-power battery lifetime targets | Select TLV2424IN only if input common-mode range beyond VDD – 1 V is required - TLV2324IN remains optimal for cost-sensitive, long-life sensor nodes |
| LP2904N | Higher supply current (120 µA max), no rail-to-rail output, 7 mV VIO max, wider temp range (–40°C to +125°C) | Preferred for automotive under-hood applications where extended temperature rating is mandatory | Choose LP2904N for AEC-Q100-compliant designs; TLV2324IN is superior for portable industrial equipment where size, power, and cost are primary constraints |
Compared with TLV2424IN and LP2904N, the TLV2324IN offers the lowest total quiescent current (108 µA max) and smallest input offset voltage drift (1 μV/°C), making it uniquely suited for battery-powered, high-impedance sensor interfaces where power budget and long-term stability are critical design parameters.
Availability
TLV2324IN is available at Aetrix Electronics and suitable for smoke detector manufacturing, industrial pressure transmitter production, and portable temperature logger development requiring stable component supply and long-term obsolescence management.
Supply support for TLV2324IN 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 headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 90 years of innovation in precision analog ICs.
The TLV2324IN belongs to TI's LinCMOS™ low-voltage op-amp product line, designed specifically for ultra-low-power, single-supply sensor signal conditioning in portable and battery-operated industrial instrumentation.
FAQ
What is the maximum operating temperature range for the TLV2324IN?
The TLV2324IN is fully specified and tested over an operating free-air temperature range of –40°C to +85°C. All key parameters - including supply current (108 µA max), input offset voltage (12 mV max), and common-mode input range - are guaranteed across this full industrial temperature range, making TLV2324IN suitable for deployment in uncontrolled environments such as outdoor sensor enclosures and factory-floor transmitters.
Does the TLV2324IN support true rail-to-rail input operation?
No, the TLV2324IN does not support rail-to-rail input. Its common-mode input voltage range extends to the negative rail (GND) and up to VDD – 1 V at 25°C (VDD – 1.2 V over full temperature range). This means the noninverting and inverting inputs cannot accept signals equal to VDD, but they do accommodate ground-referenced signals - a key advantage for single-supply sensor interfaces. TLV2324IN's rail-to-rail output capability remains fully functional.
Can the TLV2324IN drive a 10 kΩ load to rail in single-supply configuration?
Yes, the TLV2324IN can drive a 10 kΩ load to within 200 mV of VDD and to GND under typical conditions. At VDD = 3 V and TA = 25°C, the high-level output voltage (VOH) is 1.9 V min at –1 mA sink current, and low-level output voltage (VOL) is 150 mV max at 1 mA source current. With a 10 kΩ load drawing only 300 µA at 3 V, both output extremes remain well within specification - confirming robust rail-to-rail behavior for typical ADC interface loads.
What package options are available for the TLV2324IN besides the PDIP (N)?
The TLV2324IN is exclusively offered in the 14-pin plastic dual in-line package (PDIP, N package). Other variants of the TLV2324 family - such as TLV2324IDR (SOIC, D) and TLV2324IPW (TSSOP, PW) - exist, but the "IN" suffix specifically denotes the PDIP variant. No other package types carry the TLV2324IN part number; alternate packages require explicit ordering using their respective suffixes (e.g., TLV2324IDR).
How does the input bias current of TLV2324IN affect high-impedance sensor measurements?
The TLV2324IN exhibits 0.6 pA typical input bias current at 25°C, rising to 2000 pA max at 85°C. When interfacing with sensors having source impedances >100 MΩ - such as pH electrodes or certain piezoelectric elements - this bias current introduces minimal voltage error (<200 µV at 100 MΩ), preserving measurement accuracy without requiring guard traces or active bias cancellation. This performance is enabled by TI's LinCMOS™ process and makes TLV2324IN ideal for precision electrochemical and capacitive sensing.
TLV2324IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.03V/µs
- Gain Bandwidth Product:
- 85 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 39µA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2 V
- Voltage - Supply Span (Max):
- 8 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLV2324IN FAQ
1.How can I place an order for TLV2324IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2324IN 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 TLV2324IN reliable?
The price and inventory of TLV2324IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2324IN is usually 5 days.
3.What payment methods are accepted for TLV2324IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2324IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2324IN?
TLV2324IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2324IN 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 TLV2324IN?
For technical support, including TLV2324IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2324IN requirements.
6.How does Aetrix verify that TLV2324IN is sourced from the original manufacturer or authorized distributors?
All TLV2324IN 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 TLV2324IN meets industry standards.
7.What is the process for return or replacement of TLV2324IN?
All TLV2324IN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2324IN, 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 TLV2324IN part is unused and in its original packaging.
Return procedure for TLV2324IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2324IN Tags
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LM358DT
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LM358DR
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