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Texas Instruments TLV2402CDGK
- Part No.:
- TLV2402CDGK
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV2402CDGK.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,025
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Product details
Overview
TLV2402CDGK from Texas Instruments is a dual, rail-to-rail input/output micro-power operational amplifier with reverse battery protection up to 18 V. It delivers 880 nA/channel supply current, 5.5 kHz gain bandwidth, and operates from 2.5 V to 16 V. Its –0.1 V to VCC + 5 V input common-mode range enables use in Li-ion battery-powered sensor front-ends and low-voltage industrial monitoring systems.
For engineers reviewing the TLV2402CDGK datasheet, TLV2402CDGK pinout, TLV2402CDGK application, or TLV2402CDGK equivalent, key selection criteria include ultra-low quiescent current, reverse-battery fault tolerance, rail-to-rail I/O swing at sub-3-V operation, input overvoltage capability beyond VCC, and guaranteed performance across 0°C to 70°C commercial temperature range.
Technical Context
The TLV2402CDGK employs a hybrid PNP/NPN input stage enabling rail-to-rail input operation and 5 V over-the-rail tolerance - inputs above VCC forward-bias NPN emitter followers as diodes while a secondary PNP pair maintains gain. Its output stage uses complementary push-pull circuitry for true rail-to-rail voltage swing down to ±2 µA load.
Reverse battery protection is implemented via integrated Schottky diode clamping, limiting reverse supply current to ≤50 nA at –18 V and 25°C. The amplifier's 130 V/mV minimum open-loop gain at 2.7 V ensures stable closed-loop accuracy in high-impedance sensor buffering applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Channel | 880 nA typical at 2.7 V/5 V - enables >10-year battery life in always-on IoT node sensors |
| Input Offset Voltage | 390 µV typical at 25°C - supports <1 mV total error in 12-bit precision signal conditioning |
| Gain Bandwidth Product | 5.5 kHz - suitable for DC-coupled sensor amplification and slow-settling filter stages |
| Rail-to-Rail Input Range | –0.1 V to VCC + 5 V - allows direct interfacing to transducers biased above supply (e.g., thermocouples) |
| Supply Voltage Range | 2.5 V to 16 V - compatible with single-cell Li-ion (2.7–4.2 V), 5-V logic rails, and 12-V industrial buses |
| Reverse Battery Protection | Withstands –18 V reverse supply - eliminates need for external series diode in battery-powered equipment |
| Common-Mode Rejection | 120 dB typical at 25°C - rejects power supply ripple and ground noise in noisy embedded environments |
Pinout & Package
TLV2402CDGK is housed in an 8-pin MSOP (DGK) package with exposed thermal pad, measuring 3.0 mm × 3.0 mm × 1.0 mm. This ultrasmall outline supports high-density PCB layouts in space-constrained portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Channel A output | Delivers rail-to-rail voltage swing; drives loads ≥500 kΩ without degradation |
| 2 (IN– A) | Channel A inverting input | High-impedance node (300 MΩ differential resistance); sensitive to layout-induced leakage |
| 3 (IN+ A) | Channel A non-inverting input | Accepts signals from –0.1 V to VCC + 5 V; requires guard ring if used beyond rails |
| 4 (GND) | Analog ground reference | Must connect directly to low-impedance ground plane; shared with both channels |
| 5 (VCC) | Positive supply rail | Accepts 2.5–16 V; reverse-battery protected; decoupling capacitor required within 2.5 mm |
| 6 (IN+ B) | Channel B non-inverting input | Independent of Channel A; identical electrical specs and overvoltage tolerance |
| 7 (IN– B) | Channel B inverting input | Matches Channel A performance; crosstalk < –40 dB at 1 kHz per Figure 36 |
| 8 (OUT B) | Channel B output | Electrically isolated from OUT A; supports independent feedback networks |
Key Features
| Feature | Design Value |
|---|---|
| Micro-power operation | 880 nA/channel enables multi-year operation on coin-cell batteries in wireless sensor nodes |
| Rail-to-rail input and output | Full dynamic range utilization at 2.7 V supply - maximizes ADC resolution in low-voltage systems |
| Reverse battery protection | Integrated –18 V fault tolerance eliminates external protection components and BOM cost |
| Over-the-rail input capability | 5 V above VCC tolerance allows direct connection to unregulated transducer outputs |
| Low input bias current | 100 pA typical at 25°C - preserves signal integrity when paired with >10 MΩ source impedances |
| Guaranteed operation at 2.5 V | Functional across full spec range down to 2.5 V - supports aging Li-ion cells and ultra-low-power MCUs |
Applications
| Portable Gas Sensor Front-End | Industrial 4–20 mA Loop Receiver |
|---|---|
Use Scenario: Amplifying low-level electrochemical sensor output (nA–µA range) in battery-powered air quality monitors. IC Role / Device Role / Timing Role: Dual-channel transimpedance amplifier and level-shifting buffer with rail-to-rail output driving 12-bit SAR ADC. Use Value: 880 nA/channel supply current extends 2× AA battery life to >5 years; reverse-battery protection prevents field failure during battery replacement. | Use Scenario: Converting 4–20 mA loop current to ground-referenced voltage in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with input overvoltage tolerance for field-wiring fault immunity. Use Value: –0.1 V to VCC + 5 V input range accepts induced transients up to 20 V; 390 µV offset minimizes zero-error in calibrated 16-bit measurement systems. |
| Medical ECG Electrode Amplifier | Smart Meter Battery Backup Monitor |
Use Scenario: First-stage amplification of microvolt-level biopotential signals in wearable ECG patches. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance instrumentation amplifier front-end with CMRR >120 dB. Use Value: 120 dB CMRR rejects 50/60 Hz mains interference; rail-to-rail output fully utilizes 3.3 V ADC reference without level-shifting circuitry. | Use Scenario: Monitoring backup supercapacitor or Li-ion cell voltage during main power outage in utility smart meters. IC Role / Device Role / Timing Role: High-impedance voltage monitor with reverse-polarity fault detection and low-drift reference scaling. Use Value: Reverse battery protection safeguards against accidental reverse installation of backup cells; 3 µV/°C offset drift ensures <1% voltage reading error over –25°C to 70°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar micro-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2242IDGK | 1 µA/channel supply current; no reverse battery protection; 5 kHz GBW; same 8-pin MSOP package | Lacks –18 V reverse-voltage tolerance; unsuitable for battery-replaceable equipment requiring fault immunity | Select when absolute lowest cost is prioritized and external reverse-protection diode is acceptable |
| LPV821DRXT | 650 nA/channel; rail-to-rail I/O; no over-the-rail input; 3.5 kHz GBW; 5-pin SC70 package (single only) | Smaller footprint but single-channel only; no VCC + 5 V input capability limits transducer interface flexibility | Select for space-constrained single-channel designs where overvoltage tolerance is not required |
Compared with TLV2242IDGK and LPV821DRXT, TLV2402CDGK uniquely combines reverse-battery protection, over-the-rail input, and dual-channel integration in MSOP - making it optimal for fault-tolerant, low-power, multi-sensor systems where board area and reliability are co-constrained.
Availability
TLV2402CDGK is available at Aetrix Electronics and suitable for portable medical devices, battery-backed industrial sensors, and energy-harvesting IoT endpoints requiring stable component supply across extended product lifecycles.
Supply support for TLV2402CDGK 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLV240x product line was engineered for ultra-low-power signal conditioning in battery-critical applications - emphasizing nanoscale quiescent current, rail-to-rail functionality, and robustness in harsh or maintenance-sensitive environments.
FAQ
What is the maximum reverse supply voltage the TLV2402CDGK can withstand?
The TLV2402CDGK is rated for reverse battery protection up to –18 V, with reverse supply current limited to ≤50 nA at 25°C when inputs are grounded and outputs open. This specification is validated per TI SLOS244B datasheet Absolute Maximum Ratings table and enables safe operation during incorrect battery installation in field-deployed equipment.
Does the TLV2402CDGK support true rail-to-rail output swing under load?
Yes, the TLV2402CDGK delivers rail-to-rail output voltage swing down to ±2 µA load current, verified across 2.7 V, 5 V, and 15 V supplies. At VCC = 2.7 V, VOH ≥ 2.65 V and VOL ≤ 150 mV with IO = ±2 µA, ensuring full dynamic range utilization in low-voltage data acquisition systems using the TLV2402CDGK.
Can the TLV2402CDGK inputs safely operate 5 V above VCC?
Yes - the TLV2402CDGK input common-mode range extends to VCC + 5 V, enabled by its dual-input-stage architecture. When inputs exceed VCC, NPN emitter followers transition into diode conduction while a secondary PNP pair maintains gain. Input bias current increases above VCC, but device functionality remains intact, as confirmed in the TLV2402CDGK Application Information section.
What is the guaranteed operating temperature range for the TLV2402CDGK?
The TLV2402CDGK carries the 'C' suffix, specifying a commercial-grade operating temperature range of 0°C to 70°C. Electrical characteristics including offset voltage, CMRR, and supply current are fully characterized and guaranteed across this range per the SLOS244B datasheet Recommended Operating Conditions table.
Is the TLV2402CDGK pin-compatible with other members of the TLV240x family?
No - the TLV2402CDGK uses an 8-pin MSOP (DGK) package with a specific dual-amplifier pinout, whereas TLV2401 is in 5-pin SOT-23 and TLV2404 is in 14-pin TSSOP. Pin assignments differ across packages; direct substitution requires PCB redesign. Always verify pin mapping using the TLV240x Package Pinouts diagram in the TLV2402CDGK datasheet.
TLV2402CDGK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- 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-VSSOP
TLV2402CDGK FAQ
1.How can I place an order for TLV2402CDGK through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2402CDGK 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 TLV2402CDGK reliable?
The price and inventory of TLV2402CDGK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2402CDGK is usually 5 days.
3.What payment methods are accepted for TLV2402CDGK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2402CDGK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2402CDGK?
TLV2402CDGK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2402CDGK 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 TLV2402CDGK?
For technical support, including TLV2402CDGK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2402CDGK requirements.
6.How does Aetrix verify that TLV2402CDGK is sourced from the original manufacturer or authorized distributors?
All TLV2402CDGK 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 TLV2402CDGK meets industry standards.
7.What is the process for return or replacement of TLV2402CDGK?
All TLV2402CDGK units undergo pre-shipment inspection (PSI). If there is an issue with TLV2402CDGK, 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 TLV2402CDGK part is unused and in its original packaging.
Return procedure for TLV2402CDGK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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