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Texas Instruments TLV2422CD
- Part No.:
- TLV2422CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2422CD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,444
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Product details
Overview
TLV2422CD from Texas Instruments is a dual rail-to-rail output, micropower operational amplifier optimized for low-voltage (2.7 V to 10 V) single- or split-supply operation. It delivers 50 µA per channel supply current, 18 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing - enabling high dynamic range signal conditioning in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the TLV2422CD datasheet, TLV2422CD pinout, TLV2422CD application, or TLV2422CD equivalent, this page provides verified package mapping (SOIC-8), confirmed rail-to-rail output behavior, validated 0 V to 4.5 V common-mode input range at 5 V supply, precise input offset voltage limits (≤2000 µV), and real-world design implications for ADC driver and piezoelectric transducer signal chains.
Technical Context
The TLV2422CD uses Advanced LinCMOS™ process technology to achieve ultra-low input bias current (1 pA typ) and high input impedance (>1 TΩ), making it suitable for high-impedance source amplification without significant loading error. Its internal architecture eliminates phase inversion when inputs approach supply rails, unlike standard CMOS op-amps.
It features rail-to-rail output stage capable of driving 600-Ω loads while maintaining full swing, and operates across 0°C to 70°C ambient temperature with guaranteed performance at 3 V and 5 V supplies - critical for energy-constrained industrial and medical monitoring systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - supports single-cell Li-ion, two-cell alkaline, and 5 V legacy systems without level-shifting. |
| Supply Current per Channel | 100–150 µA (typ 100 µA at 25°C) - enables multi-year battery life in always-on remote sensors. |
| Input Offset Voltage | ≤2000 µV max at 25°C - sufficient for 10-bit precision in low-gain front-end stages without trimming. |
| Input Bias Current | 1 pA typical - preserves signal integrity when amplifying outputs from piezoelectric or pH electrodes. |
| Common-Mode Input Range | 0 V to 4.5 V (min) with 5 V supply - allows direct interfacing to 0–5 V analog sensors without external biasing. |
| Output Swing | Rail-to-rail - delivers full 0–5 V output into 10 kΩ load, maximizing ADC utilization and SNR. |
| Gain-Bandwidth Product | 52 kHz at 5 V - adequate for DC–10 kHz sensor signal conditioning, ECG, and thermocouple amplification. |
Pinout & Package
TLV2422CD is housed in an 8-pin SOIC (D) package, surface-mount compatible, with tape-and-reel availability (TLV2422CDR). Thermal dissipation rating is 725 mW at TA ≤ 25°C, derating linearly at 5.8 mW/°C above that temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Amplifier A output | Delivers rail-to-rail output voltage; capable of sourcing/sinking ±50 mA short-term. |
| 1IN– | Inverting input of Amplifier A | High-impedance node (10¹² Ω); accepts signals up to VDD+ – 0.8 V. |
| 1IN+ | Non-inverting input of Amplifier A | Same high-impedance interface; common-mode range extends to VDD– (0 V). |
| VDD–/GND | Negative supply / ground reference | Serves as return path for both amplifiers; no internal connection to substrate. |
| VDD+ | Positive supply | Accepts 2.7–10 V; decoupling capacitor required within 1 cm for stability. |
| 2OUT | Amplifier B output | Independent rail-to-rail output; shares same supply pins but electrically isolated. |
| 2IN– | Inverting input of Amplifier B | Functionally identical to 1IN–; enables dual-channel differential or independent gain stages. |
| 2IN+ | Non-inverting input of Amplifier B | Matches 1IN+ specs; supports dual-sensor or dual-path signal conditioning on one die. |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion | Inputs may be driven to either supply rail without output polarity reversal - eliminates need for input clamping diodes. |
| Rail-to-rail output | Delivers >99% of supply voltage swing into 10 kΩ load - maximizes dynamic range when driving SAR or delta-sigma ADCs. |
| Micropower operation | 100 µA/channel at 25°C - reduces thermal drift and enables use in thermally sensitive enclosures or wearable devices. |
| Low input noise | 18 nV/√Hz at 1 kHz - preserves SNR in low-level transducer amplification (e.g., strain gauges, accelerometers). |
| Extended common-mode range | 0 V to 4.5 V (min) at 5 V supply - simplifies single-supply design by eliminating level-shifters for 0–5 V sensor outputs. |
Applications
| Portable Gas Sensor Front-End | Medical ECG Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying microvolt-level electrochemical sensor output in handheld air quality monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Dual-channel transimpedance and gain-stage amplifier, converting current from electrochemical cell to digitizable voltage. Use Value: 1 pA input bias prevents sensor polarization; 50 µA/channel current draw extends battery life beyond 2 years in sleep-active cycling. |
Use Scenario: Low-noise amplification of differential lead-II ECG signals in ambulatory Holter monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer and right-leg drive (RLD) circuit support. Use Value: 18 nV/√Hz noise floor maintains diagnostic fidelity; rail-to-rail output ensures full-scale utilization of 16-bit ADC without clipping. |
| Industrial Temperature Transmitter | Smart Home Occupancy Detector |
|
Use Scenario: Signal conditioning for 4–20 mA loop-powered RTD or thermistor circuits in factory-floor temperature nodes. IC Role / Device Role / Timing Role: Precision voltage follower and excitation current source buffer in 3-wire RTD configuration. Use Value: 2000 µV max VIO enables <±0.5°C accuracy over 0–70°C without calibration; SOIC-8 footprint fits compact DIN-rail modules. |
Use Scenario: Amplifying pyroelectric (PIR) sensor output in battery-operated motion detectors with multi-year lifespan. IC Role / Device Role / Timing Role: High-impedance AC-coupled amplifier feeding window comparator for occupancy detection logic. Use Value: No phase inversion allows direct coupling to PIR's floating output; 100 µA/channel minimizes quiescent drain during standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2422ID | Same core specs, but rated for –40°C to 85°C operating range and 2.5 mV max VIO (vs. TLV2422CD's 2000 µV). | Required for extended-temperature industrial control or automotive cabin modules. | Select TLV2422ID when ambient operating temperature exceeds 70°C or tighter VIO spec is needed. |
| OPA2340UA | Higher GBW (5.5 MHz vs. 52 kHz), lower noise (12 nV/√Hz), but 220 µA/channel supply current - 4.4× higher than TLV2422CD. | Better suited for higher-frequency biosignal acquisition (e.g., EEG), not ultra-low-power sensing. | Choose OPA2340UA only if bandwidth >100 kHz is mandatory and battery life is secondary to signal fidelity. |
Compared with TLV2422ID, TLV2422CD offers lower cost and tighter VIO for commercial-temperature applications; compared with OPA2340UA, it trades bandwidth and noise for 77% lower quiescent power - making it optimal for sub-10 kHz, battery-critical designs where precision is moderate.
Availability
TLV2422CD is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, and smart home occupancy detectors requiring stable component supply and long-lifecycle support.
Supply support for TLV2422CD 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, embedded processing, and connectivity technologies, with decades of heritage in precision op-amp design and manufacturing.
The TLV2422 family was engineered for ultra-low-power, rail-to-rail signal conditioning in battery-operated and space-constrained systems - targeting sensor front-ends, portable instrumentation, and energy-harvesting interfaces.
FAQ
What is the maximum operating temperature range for TLV2422CD?
The TLV2422CD is specified for operation from 0°C to 70°C ambient temperature. This commercial-grade temperature range is validated per the device's C-suffix designation and aligns with its absolute maximum ratings and recommended operating conditions in the SLOS199C datasheet. Exceeding 70°C may degrade input offset voltage stability and increase supply current drift.
Does TLV2422CD support true rail-to-rail input operation?
No, TLV2422CD does not provide rail-to-rail input capability. Its common-mode input voltage range extends from VDD– (0 V) to VDD+ – 0.8 V - for example, 0 V to 4.2 V with a 5 V supply. However, it does feature rail-to-rail output swing and avoids phase inversion when inputs reach either rail, distinguishing it from conventional CMOS op-amps.
Can TLV2422CD drive a 600-Ω load effectively?
Yes, TLV2422CD is explicitly characterized to drive 600-Ω loads while maintaining rail-to-rail output swing, as stated in the device description and confirmed in Figure 1 (VOH vs IOH) of the SLOS199C datasheet. At 5 V supply and 25°C, it delivers ≥4.25 V high-level output at –1 mA sink current and ≤0.5 V low-level output at +500 µA source current.
What is the typical input offset voltage drift over temperature for TLV2422CD?
The TLV2422CD has a temperature coefficient of input offset voltage (αVIO) of 2 µV/°C, measured from 25°C across the full 0°C to 70°C range. Over that span, total drift remains within ±140 µV (70°C × 2 µV/°C), contributing predictably to system error budgets without requiring active calibration.
Is TLV2422CD pin-compatible with other devices in the TLV2422 family?
Yes, all TLV2422 variants - including TLV2422ID, TLV2422AQD, and TLV2422AID - share identical SOIC-8 (D) and TSSOP-8 (PW) pinouts per the "D PACKAGE (TOP VIEW)" and "PW PACKAGE (TOP VIEW)" diagrams in the SLOS199C datasheet. Pin functions (e.g., 1OUT, 1IN–, VDD+, etc.) are consistent across the family, enabling drop-in replacement for grade or temperature upgrades.
TLV2422CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.02V/µs
- Gain Bandwidth Product:
- 5.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 100µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2422CD FAQ
1.How can I place an order for TLV2422CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2422CD 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 TLV2422CD reliable?
The price and inventory of TLV2422CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2422CD is usually 5 days.
3.What payment methods are accepted for TLV2422CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2422CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2422CD?
TLV2422CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2422CD 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 TLV2422CD?
For technical support, including TLV2422CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2422CD requirements.
6.How does Aetrix verify that TLV2422CD is sourced from the original manufacturer or authorized distributors?
All TLV2422CD 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 TLV2422CD meets industry standards.
7.What is the process for return or replacement of TLV2422CD?
All TLV2422CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2422CD, 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 TLV2422CD part is unused and in its original packaging.
Return procedure for TLV2422CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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