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Texas Instruments TLV2422CDR
- Part No.:
- TLV2422CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2422CDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,779
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Product details
Overview
TLV2422CDR from Texas Instruments is a dual rail-to-rail output, micropower operational amplifier optimized for low-voltage (2.7 V to 10 V) single-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 TLV2422CDR datasheet, TLV2422CDR pinout, TLV2422CDR application, or TLV2422CDR equivalent, key selection considerations include its 0 V to 4.5 V common-mode input range with 5-V supply, 600-Ω output drive capability, absence of phase inversion, and D-package SOIC-8 tape-and-reel availability.
Technical Context
The TLV2422CDR uses Advanced LinCMOS™ process technology to achieve ultra-low input bias current (1 pA typ), high input impedance (>1012 Ω), and extended common-mode input range down to VDD– (0 V with 5-V supply). Its architecture avoids phase inversion when inputs approach either rail - a critical advantage over standard CMOS op-amps in precision buffer and transducer-amplifier stages.
It features rail-to-rail output stage capable of sourcing/sinking ±1 mA while maintaining <0.5 V headroom from rails, supports stable operation with capacitive loads up to 100 pF, and achieves 52 kHz gain-bandwidth product at 5 V - sufficient for DC-coupled signal chains and low-frequency filtering without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - enables direct use with single Li-ion, 3.3 V, or 5 V rails without regulation. |
| Supply Current per Channel | 100–150 µA (typ 125 µA) at 25°C - supports multi-year battery life in always-on monitoring systems. |
| Input Offset Voltage | 300–2000 µV max at 25°C - suitable for medium-precision DC amplification (e.g., thermistor, strain gauge). |
| Input Bias Current | 1 pA typical - preserves signal integrity when amplifying high-impedance sources like piezoelectric sensors. |
| Output Drive Capability | ±1 mA into 600-Ω load at 5 V - drives ADC reference buffers and low-impedance analog switches directly. |
| Common-Mode Input Range | 0 V to 4.5 V (min) with 5-V supply - accepts signals from ground-referenced sensors without level-shifting. |
| Output Voltage Swing | Rail-to-rail - maximizes usable dynamic range into 12-bit+ SAR ADCs operating on same supply. |
Pinout & Package
TLV2422CDR is housed in an 8-pin SOIC (D package), surface-mount, tape-and-reel format (R suffix denotes reel packaging). The device has two independent op-amp channels sharing power pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Channel 1 Output | Amplified output of first op-amp; rail-to-rail swing supports full-scale ADC interfacing. |
| 2 | Channel 1 Inverting Input | Inverting node for configuring gain, filtering, or comparator hysteresis; high-Z input minimizes loading. |
| 3 | Channel 1 Non-Inverting Input | High-impedance input for sensor buffering or reference voltage sensing; no phase inversion to VDD–. |
| 4 | VDD– / GND | Ground reference for single-supply operation; shared return path for both amplifiers and load. |
| 5 | VDD+ | Positive supply rail (2.7–10 V); powers both op-amps and defines output swing limits. |
| 6 | Channel 2 Output | Second independent output; enables dual-channel signal conditioning (e.g., differential pair, active filter). |
| 7 | Channel 2 Inverting Input | Independent inverting input; allows separate feedback networks per channel without crosstalk. |
| 8 | Channel 2 Non-Inverting Input | Second high-Z input; supports simultaneous amplification of two analog signals (e.g., temperature + humidity). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers full 0 V to VDD swing - eliminates need for negative supply or level-shifting in single-supply data acquisition. |
| No phase inversion | Operates linearly even when input approaches VDD– or VDD+ - prevents latch-up and distortion in sensor front-ends. |
| Micropower operation | 100–150 µA per channel - enables integration into energy-constrained IoT nodes and wearable health monitors. |
| Extended common-mode range | 0 V to VDD–0.8 V - accepts ground-referenced signals without external biasing resistors or charge pumps. |
| Low input voltage noise | 18 nV/√Hz at 1 kHz - preserves SNR in low-level signal amplification (e.g., ECG, microphone preamp). |
Applications
| Portable Sensor Signal Conditioning | Low-Power Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying mV-level outputs from thermistors, RTDs, or bridge-based pressure sensors in handheld medical devices. IC Role / Device Role: Dual-channel precision buffer and gain stage, rejecting common-mode noise while preserving DC accuracy. Use Value: Micropower consumption extends battery life; rail-to-rail output ensures full utilization of 12-bit ADC input range. |
Use Scenario: Driving successive-approximation ADC inputs in industrial field transmitters with 4–20 mA loop power constraints. IC Role / Device Role: Single-supply input buffer and reference voltage follower for SAR ADC sampling circuitry. Use Value: No phase inversion prevents erroneous readings during sensor self-test; 600-Ω drive handles ADC sample-and-hold capacitance. |
| Remote Environmental Monitoring Node | Wearable Biopotential Amplifier |
|
Use Scenario: Signal conditioning for solar-powered soil moisture and ambient light sensors in agricultural IoT gateways. IC Role / Device Role: Dual op-amp performing low-gain amplification and anti-aliasing filtering before ADC digitization. Use Value: 2.7 V minimum supply enables direct use with partially discharged LiFePO₄ cells; low input bias current avoids sensor loading errors. |
Use Scenario: First-stage amplification of microvolt-level EEG or EMG signals in compact wearable biosensors. IC Role / Device Role: High-input-impedance non-inverting amplifier with DC-coupled gain, followed by AC-coupled second stage. Use Value: 1 pA input bias current prevents electrode polarization drift; rail-to-rail output matches low-voltage ADC reference. |
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 |
|---|---|---|---|
| TLV2422IDR | Wider temperature range (–40°C to 85°C vs. 0°C to 70°C); otherwise identical electrical specs and pinout. | Suitable for industrial environments where ambient temperature exceeds 70°C. | Select TLV2422IDR if operating temperature must exceed 70°C; same PCB layout and firmware. |
| OPA2348AIDR | Lower input offset (250 µV max), higher GBW (1 MHz), but higher supply current (450 µA/channel). | Better DC accuracy and bandwidth, at cost of ~4.5× higher quiescent power. | Choose OPA2348AIDR only when sub-millivolt offset or >100 kHz signal bandwidth is required - not for micropower priority. |
Compared with TLV2422CDR, TLV2422IDR offers extended thermal robustness without design changes, while OPA2348AIDR trades significant current increase for improved precision and speed - making TLV2422CDR optimal for battery-limited, moderate-accuracy applications.
Availability
TLV2422CDR is available at Aetrix Electronics and suitable for portable instrumentation, remote environmental sensing, and wearable biometric monitoring requiring stable component supply across production lifecycles.
Supply support for TLV2422CDR 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 signal chain solutions.
The TLV2422 family was designed specifically for micropower, rail-to-rail output applications in battery-operated and space-constrained systems - emphasizing input stage robustness, supply flexibility, and ease of use in single-supply configurations.
FAQ
What is the operating temperature range for TLV2422CDR?
The TLV2422CDR is rated for 0°C to 70°C free-air operating temperature. This C-suffix grade is intended for commercial and consumer-grade applications where ambient conditions remain within this range. For extended temperature operation, consider TLV2422IDR (–40°C to 85°C) or TLV2422AQDR (–40°C to 125°C), which share identical pinout and core specifications with TLV2422CDR.
Does TLV2422CDR support true rail-to-rail input?
No, TLV2422CDR provides rail-to-rail *output* swing only. Its common-mode input voltage range extends from VDD– (0 V) to VDD+ – 0.8 V - meaning it accepts inputs down to ground but not fully to the positive rail. However, it avoids phase inversion when inputs reach either supply rail, a key functional advantage over many CMOS op-amps. True rail-to-rail input capability requires different devices such as the TLV27x series.
Can TLV2422CDR drive a 10 kΩ load with rail-to-rail output?
Yes, TLV2422CDR maintains rail-to-rail output swing into 10 kΩ loads at room temperature and 5-V supply. Its output stage is specified for ±1 mA drive into 600 Ω, so driving 10 kΩ introduces negligible voltage drop (<1 mV). Performance remains consistent across the full common-mode input range and supports stable operation with capacitive loads up to 100 pF - ideal for driving ADC inputs and RC filters.
Is TLV2422CDR pin-compatible with other dual op-amps in SOIC-8 packages?
TLV2422CDR follows the industry-standard dual op-amp pinout (pin 1 = OUT A, pin 2 = –IN A, pin 3 = +IN A, pin 4 = GND, pin 5 = V+, pin 6 = OUT B, pin 7 = –IN B, pin 8 = +IN B), matching devices like LM358, TL072, and OPA2344. However, electrical behavior differs significantly - especially input bias current (1 pA vs. 45 nA for LM358) and supply current - so functional substitution requires validation of signal chain requirements.
What is the maximum capacitive load TLV2422CDR can drive without instability?
TLV2422CDR is characterized for stable unity-gain operation with up to 100 pF capacitive load and 10 kΩ resistive load, achieving 62° phase margin at 25°C. Driving larger capacitive loads (e.g., >200 pF) may require isolation resistance (e.g., 10–50 Ω in series with output) or reduced closed-loop gain to maintain stability. Layout best practices - short traces, local bypassing (0.1 µF ceramic near VDD pin) - are essential for robust performance.
TLV2422CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
TLV2422CDR FAQ
1.How can I place an order for TLV2422CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2422CDR 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 TLV2422CDR reliable?
The price and inventory of TLV2422CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2422CDR is usually 5 days.
3.What payment methods are accepted for TLV2422CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2422CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2422CDR?
TLV2422CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2422CDR 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 TLV2422CDR?
For technical support, including TLV2422CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2422CDR requirements.
6.How does Aetrix verify that TLV2422CDR is sourced from the original manufacturer or authorized distributors?
All TLV2422CDR 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 TLV2422CDR meets industry standards.
7.What is the process for return or replacement of TLV2422CDR?
All TLV2422CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2422CDR, 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 TLV2422CDR part is unused and in its original packaging.
Return procedure for TLV2422CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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