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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Texas Instruments TLV2402CD

Name: TLV2402CD
Brand: Texas Instruments
SKU: TLV2402CD
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLV2402CD

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TLV2402CD.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8SOIC

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Product details

Overview

TLV2402CD from Texas Instruments is a dual, rail-to-rail input/output micro-power operational amplifier with reverse battery protection up to 18 V, 880 nA per channel supply current, 5.5 kHz gain bandwidth product, and operation from 2.5 V to 16 V. It serves as a precision signal conditioning front-end in ultra-low-power sensor interfaces and battery-powered instrumentation.

For engineers reviewing the TLV2402CD datasheet, TLV2402CD pinout, TLV2402CD application, or TLV2402CD equivalent, key selection criteria include its sub-1 µA quiescent current, ±100 mV beyond-rail input range (–0.1 V to V_CC + 5 V), 390 µV typical input offset voltage, reverse-battery fault tolerance, and compatibility with Li-ion and MSP430-based systems.

Technical Context

The TLV2402CD employs a hybrid PNP/NPN input stage enabling true rail-to-rail common-mode input range extending 5 V above V_CC, with input bias current rising only when inputs exceed V_CC. Its low-noise, low-drift architecture maintains DC accuracy across temperature via 120 dB CMRR and 130 V/mV open-loop gain at 2.7 V.

Reverse battery protection is implemented using integrated Schottky diodes, limiting reverse supply current to <100 nA at 25°C when V_CC = –18 V and inputs grounded. Output drive capability supports ±200 µA into loads while maintaining rail-to-rail swing within 180 mV of either rail at 50 µA sink/source.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply current per channel	880 nA typical - enables multi-year battery life in always-on sensor nodes
Input offset voltage	390 µV typical at 25°C - ensures <1 mV total error in 12-bit ADC front-ends
Gain bandwidth product	5.5 kHz - suitable for DC-coupled, low-frequency signal conditioning (e.g., thermocouples, strain gauges)
Common-mode input range	–0.1 V to V_CC + 5 V - allows direct sensing of signals above supply rail without level-shifting
Reverse battery protection	Up to 18 V - prevents damage during incorrect battery installation in portable medical or industrial devices
Operating temperature	0°C to 70°C - commercial-grade qualification for indoor consumer and industrial control applications
Input bias current	100 pA typical at 25°C - enables use with >10 MΩ feedback networks without significant error

Pinout & Package

TLV2402CD is housed in an 8-pin SOIC (D) package with standard dual op-amp pinout and no internal NC pins.

Pin/Terminal	Circuit Role	Design Meaning
1	1OUT	Output of Channel 1 - rail-to-rail swing, capable of sourcing/sinking ±200 µA
2	1IN–	Inverting input of Channel 1 - accepts voltages from –0.1 V to V_CC + 5 V
3	1IN+	Non-inverting input of Channel 1 - same extended common-mode range as IN–
4	GND	Analog ground reference - must be connected to system ground plane for stable operation
5	V_CC	Positive supply rail - operates from 2.5 V to 16 V; reverse voltage tolerant to –18 V
6	2IN+	Non-inverting input of Channel 2 - independent, identical electrical characteristics to Pin 3
7	2IN–	Inverting input of Channel 2 - fully decoupled from Channel 1, same over-rail capability
8	2OUT	Output of Channel 2 - electrically isolated output stage with same drive and swing specs as Pin 1

Key Features

Feature	Design Value
Rail-to-rail I/O	Enables full dynamic range utilization in single-supply systems down to 2.5 V, eliminating need for negative rails
880-nA/channel supply current	Reduces average power to <2.2 µW per channel at 2.5 V, critical for energy-harvesting and coin-cell designs
18-V reverse battery protection	Eliminates external protection circuitry in battery-powered equipment, reducing BOM count and board area
390-µV typical V_IO	Minimizes calibration overhead in precision analog front-ends for medical sensors and environmental monitors
120-dB CMRR	Maintains signal integrity in noisy industrial environments with high common-mode interference on sensor lines

Applications

Portable Gas Sensor Interface	Li-ion Battery Monitor Front-End
Use Scenario: Amplifying low-level electrochemical sensor output (nA-level currents) in handheld air quality analyzers. IC Role / Device Role / Timing Role: Dual-channel transimpedance and buffer amplifier providing rail-to-rail signal conditioning before 12-bit SAR ADC sampling. Use Value: 880 nA/channel current enables >5-year operation on CR2032; extended input range accommodates sensor bias above V_CC.	Use Scenario: Measuring cell voltage and temperature in multi-cell Li-ion packs for portable power tools. IC Role / Device Role / Timing Role: Precision voltage follower and differential amplifier isolating measurement circuits from pack switching noise. Use Value: Reverse battery protection prevents latch-up during hot-swap events; 390 µV V_IO ensures <0.1% voltage measurement error.
Low-Power Industrial Temperature Transmitter	Medical Pulse Oximeter Analog Front-End
Use Scenario: Conditioning PT100/RTD bridge outputs in 4–20 mA loop-powered field transmitters. IC Role / Device Role / Timing Role: Dual op-amp implementing 3-wire RTD excitation and ratiometric amplification with cold-junction compensation. Use Value: 2.5 V minimum supply allows operation directly from loop-derived power; 120 dB CMRR rejects 50/60 Hz pickup in factory floors.	Use Scenario: Amplifying weak photodiode currents (<100 nA) in wearable pulse oximeters powered by button cells. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier and AC-coupled gain stage for red/IR LED detection paths. Use Value: 100 pA input bias current avoids signal loss in high-Z photodiode paths; rail-to-rail output drives ADC reference cleanly.

Portable Gas Sensor Interface

Li-ion Battery Monitor Front-End

Use Scenario: Amplifying low-level electrochemical sensor output (nA-level currents) in handheld air quality analyzers.

IC Role / Device Role / Timing Role: Dual-channel transimpedance and buffer amplifier providing rail-to-rail signal conditioning before 12-bit SAR ADC sampling.

Use Value: 880 nA/channel current enables >5-year operation on CR2032; extended input range accommodates sensor bias above V_CC.

Use Scenario: Measuring cell voltage and temperature in multi-cell Li-ion packs for portable power tools.

IC Role / Device Role / Timing Role: Precision voltage follower and differential amplifier isolating measurement circuits from pack switching noise.

Use Value: Reverse battery protection prevents latch-up during hot-swap events; 390 µV V_IO ensures <0.1% voltage measurement error.

Low-Power Industrial Temperature Transmitter

Medical Pulse Oximeter Analog Front-End

Use Scenario: Conditioning PT100/RTD bridge outputs in 4–20 mA loop-powered field transmitters.

IC Role / Device Role / Timing Role: Dual op-amp implementing 3-wire RTD excitation and ratiometric amplification with cold-junction compensation.

Use Value: 2.5 V minimum supply allows operation directly from loop-derived power; 120 dB CMRR rejects 50/60 Hz pickup in factory floors.

Use Scenario: Amplifying weak photodiode currents (<100 nA) in wearable pulse oximeters powered by button cells.

IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier and AC-coupled gain stage for red/IR LED detection paths.

Use Value: 100 pA input bias current avoids signal loss in high-Z photodiode paths; rail-to-rail output drives ADC reference cleanly.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual micro-power op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV2402ID	Industrial temperature grade (–40°C to 125°C); otherwise identical electrical specs and pinout	Required for automotive under-hood or outdoor industrial deployments where ambient exceeds 70°C	Select TLV2402ID when operating outside 0°C–70°C range; same PCB layout and schematic
OPA2348AIDR	Higher supply current (45 µA/ch), 1 MHz GBW, lower V_IO (125 µV), no reverse battery protection	Suitable for higher-speed, higher-accuracy applications where ultra-low power is secondary	Choose OPA2348AIDR only when bandwidth >100 kHz or offset <200 µV is mandatory; requires external reverse-voltage protection

Compared with TLV2402ID, the TLV2402CD offers identical performance at lower cost for commercial environments, while OPA2348AIDR trades 50× higher current for 180× higher bandwidth and tighter offset-making it unsuitable for multi-year battery life but viable for active signal processing stages.

Availability

TLV2402CD is available at Aetrix Electronics and suitable for portable medical devices, battery-powered environmental sensors, and industrial loop-powered transmitters requiring stable component supply and long-term production continuity.

Supply support for TLV2402CD 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 op-amps and low-power design.

The TLV240x product line was engineered specifically for ultra-low-power, single-supply sensor signal conditioning in battery-constrained applications such as wearables, remote monitoring, and energy-harvesting systems.

FAQ

What is the maximum supply voltage for TLV2402CD?

The absolute maximum supply voltage for TLV2402CD is 17 V, with recommended operation up to 16 V. Exceeding 17 V risks permanent damage. The device is rated for continuous operation from 2.5 V to 16 V, and its reverse battery protection withstands –18 V on V_CC with inputs grounded and outputs open.

Does TLV2402CD support rail-to-rail input beyond the positive supply rail?

Yes, TLV2402CD supports common-mode input voltages up to V_CC + 5 V. This over-the-rail capability is enabled by its hybrid NPN/PNP input stage. When inputs exceed V_CC, the NPN transistors behave as diodes, maintaining functionality while increasing input bias current-verified in the datasheet's Figure 5, 7, and 9.

What is the typical input offset voltage of TLV2402CD at room temperature?

The typical input offset voltage of TLV2402CD is 390 µV at 25°C, with a maximum of 1500 µV across the full 0°C to 70°C operating range. This value is measured with V_O = V_CC/2 and V_IC = V_CC/2, and is critical for minimizing DC error in precision gain stages and sensor interfaces.

Can TLV2402CD drive capacitive loads without instability?

TLV2402CD remains stable with capacitive loads up to 100 pF, as confirmed by phase margin ≥60° and gain margin ≥15 dB in the datasheet (Figure 24–25). For loads >100 pF, external isolation resistance (e.g., 100 Ω in series with output) is recommended to maintain stability-per application note SLOS244B Section "Circuit Layout Considerations".

Is TLV2402CD pin-compatible with other packages in the TLV240x family?

No-TLV2402CD uses the 8-pin SOIC (D) package with a specific dual op-amp pinout. The TLV2402CDGK (MSOP-8) shares identical pin functions but differs in footprint and thermal characteristics. TLV2401 (SOT-23-5) and TLV2404 (TSSOP-14) have different pin counts and layouts; direct substitution requires PCB redesign.

TLV2402CD Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 2

Output Type:: Rail-to-Rail

Slew Rate:: 0.0025V/µs

Gain Bandwidth Product:: 5.5 kHz

-3db Bandwidth:: -

Current - Input Bias:: 100 pA

Voltage - Input Offset:: 390 µV

Current - Supply:: 900nA (x2 Channels)

Current - Output / Channel:: 200 µA

Voltage - Supply Span (Min):: 2.5 V

Voltage - Supply Span (Max):: 16 V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

TLV2402CD FAQ

1.How can I place an order for TLV2402CD through Aetrix?

Please submit a Request for Quotation (RFQ) for TLV2402CD 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 TLV2402CD reliable?

The price and inventory of TLV2402CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2402CD is usually 5 days.

3.What payment methods are accepted for TLV2402CD?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2402CD transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLV2402CD?

TLV2402CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLV2402CD 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 TLV2402CD?

For technical support, including TLV2402CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2402CD requirements.

6.How does Aetrix verify that TLV2402CD is sourced from the original manufacturer or authorized distributors?

All TLV2402CD 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 TLV2402CD meets industry standards.

7.What is the process for return or replacement of TLV2402CD?

All TLV2402CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2402CD, 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 TLV2402CD part is unused and in its original packaging.

Return procedure for TLV2402CD:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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