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Texas Instruments TLV2452CD
- Part No.:
- TLV2452CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2452CD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,065
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Product details
Overview
TLV2452CD from Texas Instruments is a dual rail-to-rail input/output operational amplifier optimized for ultralow-power, low-voltage portable applications. It delivers 220 kHz gain-bandwidth, ±10 mA output drive, 23 µA/channel supply current, and operates from 2.7 V to 6 V - enabling high-precision signal conditioning in battery-powered medical sensors and data acquisition front-ends.
For engineers reviewing the TLV2452CD datasheet, TLV2452CD pinout, TLV2452CD application, or TLV2452CD equivalent, key selection criteria include its 8-pin SOIC package, shutdown-incompatible dual-channel architecture, rail-to-rail swing capability at sub-3-V operation, and verified performance across −40°C to 125°C industrial temperature range.
Technical Context
The TLV2452CD implements a CMOS input stage with rail-to-rail input common-mode range (0 V to VDD) and rail-to-rail output swing (within 250 mV of rails at 2.5 mA load). Its internal architecture supports stable unity-gain operation with 56° phase margin into 1000 pF capacitive loads.
It features no shutdown functionality - unlike TLV2450/3/5 variants - and is fully specified at both 3 V and 5 V single-supply operation. The device achieves 106 dB PSRR and 89 dB CMRR at VDD/2, with input offset voltage typ. 20 µV and tempco of 0.3 µV/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - enables direct interface with Li-ion, 3.3 V, and 5 V systems without level-shifting. |
| Gain-Bandwidth Product | 220 kHz - supports DC-coupled sensor amplification and low-frequency filtering up to ~20 kHz with stable gain. |
| Supply Current per Channel | 23 µA - allows continuous operation for years on coin-cell batteries in always-on monitoring nodes. |
| Output Drive Capability | ±10 mA - drives 10 kΩ loads to rail while maintaining linearity, suitable for driving ADC reference buffers or DAC outputs. |
| Input Offset Voltage | 20 µV (typ) - ensures <1 LSB error in 16-bit systems with 1 V full-scale input range. |
| Rail-to-Rail I/O | Yes - maximizes dynamic range in single-supply systems by utilizing full supply voltage swing for both input and output signals. |
| PSRR | 106 dB - rejects power supply noise effectively, critical for precision measurements in noisy embedded environments. |
Pinout & Package
TLV2452CD is housed in an 8-pin SOIC (D) package with standard JEDEC outline, 1.27 mm pitch, and tape-and-reel availability (TLV2452CDR). Thermal resistance θJA = 176°C/W supports operation up to 70°C ambient without heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of sourcing/sinking ±10 mA while swinging within 250 mV of VDD/GND. |
| 2 | IN− A | Inverting input for channel A - high-impedance CMOS node with 0.3 nA bias current at 25°C. |
| 3 | IN+ A | Non-inverting input for channel A - accepts common-mode voltages from 0 V to VDD. |
| 4 | GND | Analog ground reference - must be low-impedance connection to minimize noise coupling into both channels. |
| 5 | IN+ B | Non-inverting input for channel B - independent of channel A; supports differential or single-ended configurations. |
| 6 | IN− B | Inverting input for channel B - matched to channel A for common-mode rejection in dual-sensor setups. |
| 7 | OUT B | Amplifier B output - electrically identical to OUT A; enables dual-path signal conditioning on one die. |
| 8 | VDD+ | Positive supply - powers both amplifiers; decoupling capacitor (0.1 µF) required within 1 cm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 2.7–6 V supply range in single-supply designs, eliminating need for negative rails or level shifters. |
| 23 µA/channel quiescent current | Extends battery life in portable ECG monitors and wearable biosensors where continuous analog front-end operation is required. |
| 220 kHz gain-bandwidth at 5 V | Supports stable closed-loop gain ≥100 for low-noise sensor amplification without stability compromises. |
| 106 dB PSRR | Maintains accuracy in systems sharing noisy digital supplies, such as microcontroller-based data loggers. |
| Specified from −40°C to 125°C | Validates performance in automotive cabin sensors and industrial process controllers exposed to wide thermal cycling. |
Applications
| Portable Medical Sensors | Patient Monitoring Systems |
|---|---|
Use Scenario: Amplifying low-amplitude biopotential signals (e.g., ECG, EMG) from dry electrodes in handheld diagnostic tools. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end providing gain, filtering, and rail-to-rail buffering before ADC sampling. Use Value: 20 µV offset and 23 µA/channel current enable >14-bit effective resolution and multi-week battery life on CR2032 cells. | Use Scenario: Signal conditioning for multi-parameter vital sign acquisition (SpO₂, respiration, temperature) in bedside monitors. IC Role / Device Role / Timing Role: Dual op-amp performing simultaneous transimpedance conversion (photodiode) and thermistor voltage scaling. Use Value: Matched dual channels reduce calibration drift; 220 kHz GBW supports fast pulse oximetry waveform capture without aliasing. |
| Data Acquisition Front-Ends | Low-Power Industrial Sensors |
Use Scenario: Buffered analog inputs for 16-bit SAR ADCs in battery-operated environmental sensor nodes (CO₂, humidity, VOC). IC Role / Device Role / Timing Role: Precision unity-gain buffer isolating high-impedance sensor elements from ADC input capacitance. Use Value: Rail-to-rail output swing preserves full ADC input range; 106 dB PSRR prevents supply ripple from degrading ENOB. | Use Scenario: Conditioning output from MEMS accelerometers and pressure transducers in wireless condition-monitoring devices. IC Role / Device Role / Timing Role: Dual-stage signal chain: first amp for sensor excitation/current-to-voltage conversion, second for gain/level-shifting. Use Value: 2.7 V minimum supply allows direct use with energy-harvesting sources; 125°C rating supports deployment near motors or engines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2452ID | Identical electrical specs but rated for −40°C to 125°C operating range vs. TLV2452CD's 0°C to 70°C. | Suitable for under-hood automotive or industrial control cabinets where extended temperature tolerance is mandatory. | Select TLV2452ID when ambient exceeds 70°C or requires AEC-Q200 alignment; same footprint and pinout. |
| OPA2348AIDR | Higher 1 MHz GBW, 45 µA/channel supply current, and 10 µV max offset - but lacks guaranteed 125°C operation and has different pinout (SOIC-8, non-matching pin 1 location). | Better for higher-speed sensor interfaces (e.g., ultrasonic flow meters), but increases power budget and requires PCB redesign. | Choose OPA2348AIDR only if bandwidth >500 kHz is required; not drop-in - verify layout compatibility and thermal derating. |
Compared with TLV2452ID, TLV2452CD offers lower cost and sufficient performance for commercial-grade portable equipment, while OPA2348AIDR trades ultralow power for speed - making TLV2452CD optimal for battery-limited, precision, low-frequency sensing where thermal margin is controlled.
Availability
TLV2452CD is available at Aetrix Electronics and suitable for portable medical sensors, patient monitoring systems, and data acquisition front-ends requiring stable component supply, long-term manufacturability, and consistent parametric performance across production lots.
Supply support for TLV2452CD 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 over 90 years of innovation in precision analog ICs.
The TLV245x family was designed specifically for ultralow-power, rail-to-rail signal conditioning in battery-operated medical, industrial, and portable instrumentation - prioritizing supply current efficiency without sacrificing ac performance or output drive.
FAQ
Does TLV2452CD include a shutdown feature?
No, TLV2452CD does not include a shutdown terminal. Unlike TLV2450, TLV2453, or TLV2455 variants, the TLV2452CD is a dual-channel op-amp without integrated shutdown control. Its supply current remains fixed at 23 µA per channel during operation, and it cannot be placed into ultralow-power (16 nA) standby mode. This simplifies design for always-on applications but excludes use cases requiring periodic power gating.
What is the maximum output current capability of TLV2452CD?
The TLV2452CD provides ±10 mA output drive capability per channel at 5 V supply, as confirmed in the Electrical Characteristics table (VDD = 5 V, IO = ±10 mA). This allows direct driving of 10 kΩ loads to rail while maintaining linearity and is validated across the full 0°C to 70°C operating range. Output short-circuit current is limited to ±32 mA sourcing and ±18 mA sinking under fault conditions.
Is TLV2452CD pin-compatible with other TLV245x dual variants like TLV2452ID or TLV2452AID?
Yes, TLV2452CD is pin-compatible with TLV2452ID and TLV2452AID - all share identical 8-pin SOIC (D) package, pinout, and functional assignment. The only differences are temperature grade (C: 0°C–70°C, I: −40°C–125°C, A: −40°C–125°C with enhanced AC specs) and ordering suffixes. No PCB changes are required when upgrading from TLV2452CD to TLV2452ID for extended temperature operation.
What is the typical input offset voltage of TLV2452CD and how does it affect precision applications?
The typical input offset voltage of TLV2452CD is 20 µV at 25°C, with a maximum of 1300 µV across the full 0°C to 70°C range. In a 16-bit system with 1 V full-scale range, this contributes ≤0.13 LSB of error - well within acceptable limits for clinical-grade biosignal amplification. The low 0.3 µV/°C tempco further minimizes drift-induced errors during thermal transients in portable devices.
Can TLV2452CD operate reliably from a 2.7 V single supply?
Yes, TLV2452CD is fully specified and characterized down to 2.7 V single supply, including gain-bandwidth (200 kHz), output swing (within 250 mV of rails at 2.5 mA), and PSRR (≥74 dB). It maintains rail-to-rail input common-mode range (0 V to VDD) and stable phase margin (56°) at this minimum voltage - making it suitable for direct integration with energy-harvesting circuits and low-voltage LiFePO₄ batteries.
TLV2452CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- 0.11V/µs
- Gain Bandwidth Product:
- 220 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 500 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 23µA (x2 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2452CD FAQ
1.How can I place an order for TLV2452CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2452CD 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 TLV2452CD reliable?
The price and inventory of TLV2452CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2452CD is usually 5 days.
3.What payment methods are accepted for TLV2452CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2452CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2452CD?
TLV2452CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2452CD 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 TLV2452CD?
For technical support, including TLV2452CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2452CD requirements.
6.How does Aetrix verify that TLV2452CD is sourced from the original manufacturer or authorized distributors?
All TLV2452CD 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 TLV2452CD meets industry standards.
7.What is the process for return or replacement of TLV2452CD?
All TLV2452CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2452CD, 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 TLV2452CD part is unused and in its original packaging.
Return procedure for TLV2452CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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