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Texas Instruments TLV2432QDR
- Part No.:
- TLV2432QDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2432QDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,408
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Product details
Overview
TLV2432QDR from Texas Instruments is a dual, rail-to-rail output operational amplifier optimized for automotive-grade operation (–40°C to 125°C) with 125 µA per channel supply current, 18 nV/√Hz input voltage noise at 1 kHz, and extended common-mode input range of 0 V to 4.5 V (min) at 5-V supply. It delivers 600-Ω output drive capability and supports low-voltage signal conditioning in battery-powered sensor interfaces and ADC front-ends.
For engineers reviewing the TLV2432QDR datasheet, TLV2432QDR pinout, TLV2432QDR application, or TLV2432QDR equivalent, key selection criteria include its Q-temp automotive qualification, rail-to-rail output swing, ultra-low input bias current (1 pA typ), and guaranteed performance across –40°C to 125°C without phase inversion at rail inputs.
Technical Context
The TLV2432QDR uses Advanced LinCMOS™ process technology to achieve high input impedance (>1 TΩ), rail-to-rail output swing, and no phase inversion when common-mode input reaches either supply rail. Its architecture supports stable operation with capacitive loads up to 100 pF and maintains ≥62° phase margin at unity gain with 2-kΩ load.
It is fully characterized at 3-V and 5-V supplies, with specified common-mode input range (0 V to 4.2 V full-range), CMRR (70 dB min), and PSRR (80 dB min) across temperature. Input offset voltage is 950 µV max for the 'A' variant (TLV2432AQDR), but TLV2432QDR itself is specified at 2000 µV max over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - Enables direct use in 3.3-V and 5-V systems, including automotive 12-V battery-derived rails with LDO pre-regulation. |
| Input Offset Voltage (max) | 2000 µV over –40°C to 125°C - Sets DC accuracy limit in precision gain stages and sensor amplifiers without trimming. |
| Supply Current per Channel | 125 µA max at 25°C - Supports multi-channel, always-on monitoring circuits with sub-250 µA total quiescent draw. |
| Input Bias Current (typ) | 1 pA - Preserves signal integrity from high-impedance sources like piezoelectric transducers or pH electrodes. |
| Output Drive Capability | 600-Ω load at full rail-to-rail swing - Directly drives telecom line drivers, SAR ADC reference buffers, and analog multiplexer outputs. |
| Input Voltage Noise | 18 nV/√Hz at 1 kHz - Determines minimum resolvable signal in low-frequency sensor front-ends (e.g., strain gauges, thermopiles). |
| Common-Mode Input Range | 0 V to 4.2 V (min) at 5-V supply - Allows direct sensing of ground-referenced signals without level-shifting circuitry. |
Pinout & Package
TLV2432QDR is housed in an 8-pin SOIC (D) package with exposed pad (RoHS-compliant, lead-free). Pin assignments are identical to industry-standard dual op-amp layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | High-impedance node accepting feedback or differential input; supports >1-TΩ source impedances. |
| 2 | Non-Inverting Input (Channel 1) | DC-coupled input node with 0 V to 4.2 V common-mode range at 5-V supply. |
| 3 | Output (Channel 1) | Rail-to-rail capable output driving 600-Ω loads to within 25 mV of VDD+ and 100 mV of VDD–. |
| 4 | VDD– / GND | Power return path; must be low-impedance connection to minimize noise coupling into both channels. |
| 5 | Non-Inverting Input (Channel 2) | Independent input for second amplifier; shares same common-mode and noise specifications as Channel 1. |
| 6 | Inverting Input (Channel 2) | Configurable for inverting gain stage or active filter topology with matched AC response to Channel 1. |
| 7 | Output (Channel 2) | Functionally identical to Pin 3; enables dual-path signal processing without cross-talk above 70 dB. |
| 8 | VDD+ | Positive supply rail; accepts 2.7–10 V; decoupling capacitor required within 1 cm for stability at full bandwidth. |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion at rail inputs | Enables reliable operation in single-supply configurations where input signals swing to ground or VDD, eliminating latch-up risk in sensor interfaces. |
| Rail-to-rail output swing | Delivers full dynamic range to ADCs and comparators without external level-shifting, increasing effective resolution by up to 1 LSB. |
| Extended common-mode input range | Accepts inputs from 0 V to VDD–1.3 V, supporting direct measurement of ground-referenced sensors in 3.3-V and 5-V systems. |
| Low 1-pA input bias current | Minimizes voltage error across high-value feedback resistors (>1 MΩ), critical for precision integrators and photodiode transimpedance amps. |
| Q-temp automotive qualification | Qualified per AEC-Q100 Grade 2 (–40°C to +105°C ambient) and tested to –40°C to +125°C junction temperature limits for engine bay and ADAS applications. |
Applications
| Automotive Cabin Temperature Sensing | Industrial 4–20 mA Loop Receiver |
|---|---|
|
Use Scenario: Amplifying output of NTC thermistors in HVAC control modules under wide ambient temperature swings. IC Role / Device Role / Timing Role: Dual-channel signal conditioner providing buffered, rail-to-rail output for microcontroller ADC sampling. Use Value: 1-pA input bias prevents self-heating errors in high-resistance thermistor networks; rail-to-rail output maximizes ADC utilization across 0–100°C range. |
Use Scenario: Converting 4–20 mA loop current to 0.2–1.0 V signal for isolation and digitization in PLC I/O modules. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with low offset drift and high CMRR to reject common-mode noise on long cables. Use Value: 950-µV max VIO (TLV2432AQDR variant) ensures <±0.1% full-scale error over temperature; 70-dB CMRR suppresses induced 50/60-Hz interference. |
| Portable Medical ECG Front-End | Battery-Powered Gas Sensor Interface |
|
Use Scenario: First-stage amplification of low-amplitude biopotential signals (<5 mVpp) from dry electrodes in wearable monitors. IC Role / Device Role / Timing Role: Low-noise, micropower instrumentation amplifier core with selectable gain and DC-coupled input. Use Value: 18-nV/√Hz input noise preserves SNR in 0.05–150 Hz band; 125-µA/channel IDD extends battery life beyond 72 hours on coin-cell power. |
Use Scenario: Conditioning output of electrochemical gas sensors (e.g., CO, NO₂) with high output impedance (>100 kΩ) and microamp-level currents. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and rail-to-rail output for microcontroller ADC interface. Use Value: 1-pA IIB eliminates significant offset error across 10-MΩ feedback resistor; 0–4.2 V common-mode range accommodates sensor zero-current baseline. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail output operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2432AQDR | Lower max input offset voltage (950 µV vs. 2000 µV) at 25°C; otherwise identical pinout, specs, and Q-temp rating. | Suitable for higher-accuracy sensor signal chains where DC offset budget is constrained below 1 mV. | Select TLV2432AQDR when system-level calibration is impractical and initial offset must be minimized. |
| MCP6022-E/SN | Higher supply current (170 µA/ch), wider GBW (1 MHz), but only rated for –40°C to +85°C industrial temp range. | Lacks AEC-Q100 qualification; not approved for under-hood automotive use or extended-temperature industrial deployments. | Choose MCP6022-E/SN only for cost-sensitive non-automotive designs requiring higher bandwidth and tighter offset (250 µV max). |
Compared with TLV2432QDR, TLV2432AQDR improves DC accuracy without sacrificing temperature range or packaging, while MCP6022-E/SN trades automotive qualification and ultra-low power for higher speed-making TLV2432QDR optimal for thermally demanding, always-on automotive and industrial sensing nodes.
Availability
TLV2432QDR is available at Aetrix Electronics and suitable for automotive cabin control, industrial loop-powered transmitters, portable medical diagnostics, and battery-operated environmental monitoring requiring stable component supply across extended temperature ranges.
Supply support for TLV2432QDR 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 experience in high-reliability automotive and industrial IC design.
The TLV243x family was engineered for low-voltage, micropower signal conditioning in space-constrained, battery-dependent systems-emphasizing rail-to-rail output, high input impedance, and robust operation across harsh thermal environments.
FAQ
What is the operating temperature range for TLV2432QDR?
The TLV2432QDR is qualified for continuous operation from –40°C to +125°C junction temperature, meeting AEC-Q100 Grade 2 requirements for automotive under-hood and infotainment applications. This rating is explicitly confirmed in the device's ordering information table and absolute maximum ratings section of the SLOS168F datasheet.
Does TLV2432QDR support rail-to-rail input?
No, TLV2432QDR features rail-to-rail *output* only. Its common-mode input voltage range extends from VDD– to (VDD+ – 1.3 V), enabling operation down to ground but not up to the positive rail. This is clearly specified as "Wide-Input-Voltage" - not rail-to-rail input - in the device title and electrical characteristics tables.
What is the maximum load capacitance TLV2432QDR can drive stably?
TLV2432QDR maintains ≥62° phase margin and stable unity-gain operation with up to 100 pF capacitive load when configured with a 2-kΩ load resistor, as verified in Figure 48 (phase margin vs. load capacitance) and the operating characteristics tables of the SLOS168F datasheet.
Is TLV2432QDR pin-compatible with other dual op-amps in SOIC-8?
Yes, TLV2432QDR uses the standard SOIC-8 pinout for dual op-amps (pins 1–3 and 5–7 for Channel 1 and Channel 2 I/O, pins 4 and 8 for GND and VDD+), matching industry conventions used by LM358, TLV2372, and MCP6022 - enabling drop-in replacement in many existing layouts.
What is the typical input offset voltage drift over temperature for TLV2432QDR?
The TLV2432QDR has a temperature coefficient of input offset voltage (αVIO) of 2 µV/°C, as specified in both the 3-V and 5-V electrical characteristics tables. This value applies across the full –40°C to +125°C range and directly determines worst-case VIO shift in uncalibrated systems.
TLV2432QDR 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:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.25V/µs
- Gain Bandwidth Product:
- 550 kHz
- -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:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2432QDR FAQ
1.How can I place an order for TLV2432QDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2432QDR 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 TLV2432QDR reliable?
The price and inventory of TLV2432QDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2432QDR is usually 5 days.
3.What payment methods are accepted for TLV2432QDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2432QDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2432QDR?
TLV2432QDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2432QDR 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 TLV2432QDR?
For technical support, including TLV2432QDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2432QDR requirements.
6.How does Aetrix verify that TLV2432QDR is sourced from the original manufacturer or authorized distributors?
All TLV2432QDR 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 TLV2432QDR meets industry standards.
7.What is the process for return or replacement of TLV2432QDR?
All TLV2432QDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2432QDR, 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 TLV2432QDR part is unused and in its original packaging.
Return procedure for TLV2432QDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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