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Texas Instruments TLV2402CDGKR
- Part No.:
- TLV2402CDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV2402CDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,725
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Product details
Overview
TLV2402CDGKR 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 - enabling use in Li-ion–powered sensor front-ends and ultra-low-power data acquisition systems.
For engineers reviewing the TLV2402CDGKR datasheet, TLV2402CDGKR pinout, TLV2402CDGKR application, or TLV2402CDGKR equivalent, key selection criteria include its sub-1-µA quiescent current, ±20 V differential input rating, –0.1 V to VCC + 5 V common-mode range, and guaranteed operation across 0°C to 70°C commercial temperature range.
Technical Context
The TLV2402CDGKR employs a hybrid PNP/NPN input stage enabling true rail-to-rail input operation and 5 V over-the-rail capability - inputs tolerate up to VCC + 5 V without damage. Its internal Schottky diode network provides reverse battery protection, limiting supply current to <100 nA at –18 V.
DC precision is maintained via 390 µV typical input offset voltage, 120 dB CMRR, and 130 V/mV open-loop gain at 2.7 V. The amplifier remains stable driving capacitive loads up to 100 pF with 60° phase margin and supports unity-gain follower configurations with 1.84 ms 0.1% settling time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current / Channel | 880 nA typical - enables multi-year battery life in always-on sensor nodes |
| Gain Bandwidth Product | 5.5 kHz - suitable for DC-coupled signal conditioning and low-frequency sensor amplification |
| Input Offset Voltage | 390 µV typical (25°C) - ensures <1 mV error in 10-bit ADC interfaces with 3.3 V reference |
| Rail-to-Rail I/O | Input range: –0.1 V to VCC + 5 V; Output swing: within 180 mV of rails at 50 µA load - maximizes dynamic range in single-supply systems |
| Reverse Battery Protection | Withstands –18 V supply with <100 nA leakage - 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 industrial environments |
| Operating Temperature | 0°C to 70°C (C-suffix) - qualified for commercial-grade embedded instrumentation and portable medical devices |
Pinout & Package
TLV2402CDGKR is housed in an 8-pin MSOP (DGK) package with exposed thermal pad. This thermally enhanced surface-mount package supports compact PCB layouts and improved power dissipation (θJA = 259.9°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of Channel 1 - rail-to-rail capable, drives loads down to 500 kΩ with <180 mV headroom |
| 2 | 1IN– | Inverting input of Channel 1 - accepts signals from –0.1 V to VCC + 5 V; bias current <300 pA (full range) |
| 3 | 1IN+ | Non-inverting input of Channel 1 - same overvoltage tolerance and ultra-low bias as Pin 2 |
| 4 | GND | Analog ground reference - must be connected to low-impedance ground plane per layout guidelines |
| 5 | VCC | Positive supply rail - supports 2.5 V to 16 V; reverse voltage up to –18 V tolerated without damage |
| 6 | 2IN+ | Non-inverting input of Channel 2 - independent channel with identical specs and overvoltage capability |
| 7 | 2IN– | Inverting input of Channel 2 - matched performance to Pins 2/3; enables dual-channel differential sensing |
| 8 | 2OUT | Output of Channel 2 - fully independent output stage; no crosstalk >36 dB at 1 kHz |
Key Features
| Feature | Design Value |
|---|---|
| Micro-power operation | 880 nA/channel supply current enables >10-year battery life in 200 µAh coin-cell applications |
| Reverse battery protection | Internal Schottky network limits reverse current to <100 nA at –18 V - removes external protection diode |
| Rail-to-rail input with overvoltage tolerance | Inputs operate from –0.1 V to VCC + 5 V - allows direct connection to sensors exceeding supply rails |
| Low input bias current | 100 pA typical at 25°C - preserves signal integrity when used with >10 MΩ source impedances |
| High open-loop gain | 130 V/mV minimum at 2.7 V - ensures <0.1% gain error in precision gain stages with RF/RG ≤ 100 |
| Stable with capacitive loads | 60° phase margin with 100 pF load - supports direct driving of ADC input capacitors without isolation resistor |
Applications
| Gas Sensor Signal Conditioning | Portable ECG Front-End |
|---|---|
|
Use Scenario: Amplifying low-level (<100 µV), high-impedance outputs from electrochemical gas sensors powered by CR2032 batteries. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier stage providing gain, filtering, and rail-to-rail buffering before 12-bit SAR ADC sampling. Use Value: 880 nA/channel current extends battery life beyond 5 years; reverse battery protection prevents field failure during battery replacement. |
Use Scenario: Biopotential amplification in handheld ECG monitors using dry electrodes and single-cell Li-ion (3.0–4.2 V) supply. IC Role / Device Role / Timing Role: First-stage AC-coupled amplifier with high-pass filtering and gain, followed by rail-to-rail output driving anti-aliasing filter. Use Value: 390 µV offset and 120 dB CMRR reject motion artifacts and 50/60 Hz interference; 2.5 V min supply supports brownout operation down to depleted battery. |
| Smart Meter Current Sensing | Industrial Thermistor Interface |
|
Use Scenario: Isolation-free shunt-based current measurement in Class 0.5 smart electricity meters operating from 3.3 V MCU rails. IC Role / Device Role / Timing Role: Precision difference amplifier converting mV-level shunt voltage into ratiometric ADC input referenced to same 3.3 V supply. Use Value: 1500 µV max VIO over 0°C–70°C ensures <0.05% full-scale error; PSRR >96 dB suppresses MCU switching noise coupling. |
Use Scenario: Linearizing and amplifying resistance changes from NTC thermistors in HVAC control panels powered from 12 V DC bus. IC Role / Device Role / Timing Role: Constant-current excitation source + buffer for thermistor voltage divider, enabling 0.1°C resolution over –20°C to 85°C. Use Value: Input range extending to VCC + 5 V allows direct interface to 12 V–referenced dividers; 130 V/mV AVD ensures stable closed-loop gain accuracy. |
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 |
|---|---|---|---|
| TLV2242IDGKR | 1 µA/channel supply current; 5 kHz GBW; no reverse battery protection; 0.6 mV max VIO | Lacks reverse polarity hardening - requires external protection diode in battery systems | Choose when absolute lowest cost is prioritized and reverse battery risk is mitigated externally |
| LPV821DRX | 650 nA/channel; 10 kHz GBW; rail-to-rail I/O; no overvoltage input tolerance; 1.25 mV max VIO | Higher bandwidth but narrower input range (0 to VCC) - unsuitable for sensors exceeding supply rails | Prefer when higher speed is needed and input signals remain strictly within supply bounds |
Compared with TLV2242IDGKR and LPV821DRX, TLV2402CDGKR uniquely combines sub-µA quiescent current, 5 V over-the-rail input tolerance, and integrated reverse battery protection - making it the only option requiring zero external protection components in harsh-replacement-field battery applications.
Availability
TLV2402CDGKR is available at Aetrix Electronics and suitable for gas sensor signal conditioning, portable ECG front-ends, smart meter current sensing, and industrial thermistor interfaces requiring stable component supply across long production lifecycles.
Supply support for TLV2402CDGKR 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 family was designed specifically for ultra-low-power, single-supply sensor signal conditioning - emphasizing reverse-battery resilience, rail-to-rail operation, and nanoamp quiescent current in miniature packages.
FAQ
What is the maximum supply voltage for TLV2402CDGKR?
The absolute maximum supply voltage for TLV2402CDGKR is 17 V, with recommended operation from 2.5 V to 16 V. Electrical characteristics are specified at 2.7 V, 5 V, and 15 V. Exceeding 16 V may degrade long-term reliability even if within absolute maximum ratings.
Does TLV2402CDGKR support true rail-to-rail input operation?
Yes, TLV2402CDGKR supports rail-to-rail input operation from –0.1 V to VCC + 5 V. This is achieved via a hybrid PNP/NPN input stage that transitions seamlessly across the rail boundary - enabling direct interface to sensors whose output exceeds the positive supply.
Can TLV2402CDGKR drive capacitive loads directly?
TLV2402CDGKR maintains stability with capacitive loads up to 100 pF, exhibiting 60° phase margin and 15 dB gain margin under those conditions. For larger loads, an isolation resistor is recommended - confirmed in Figure 24 of the SLOS244B datasheet.
What is the input bias current specification for TLV2402CDGKR?
TLV2402CDGKR has a typical input bias current of 100 pA at 25°C, with a maximum of 350 pA over the full 0°C to 70°C commercial temperature range. This ultra-low value enables accurate amplification of signals from high-impedance sources like pH electrodes and piezoresistive sensors.
Is TLV2402CDGKR pin-compatible with other dual op-amps in MSOP-8?
No, TLV2402CDGKR uses a non-standard pinout: 1OUT, 1IN–, 1IN+, GND, VCC, 2IN+, 2IN–, 2OUT. It is not pin-compatible with generic dual op-amps such as LMV358 or TLV2372 in DGK package - PCB layout must follow the specific TLV2402CDGKR pin mapping shown in Figure 3 of SLOS244B.
TLV2402CDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
TLV2402CDGKR FAQ
1.How can I place an order for TLV2402CDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2402CDGKR 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 TLV2402CDGKR reliable?
The price and inventory of TLV2402CDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2402CDGKR is usually 5 days.
3.What payment methods are accepted for TLV2402CDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2402CDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2402CDGKR?
TLV2402CDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2402CDGKR 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 TLV2402CDGKR?
For technical support, including TLV2402CDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2402CDGKR requirements.
6.How does Aetrix verify that TLV2402CDGKR is sourced from the original manufacturer or authorized distributors?
All TLV2402CDGKR 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 TLV2402CDGKR meets industry standards.
7.What is the process for return or replacement of TLV2402CDGKR?
All TLV2402CDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2402CDGKR, 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 TLV2402CDGKR part is unused and in its original packaging.
Return procedure for TLV2402CDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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