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Texas Instruments TLV2453CD
- Part No.:
- TLV2453CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2453CD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,013
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Product details
Overview
TLV2453CD from Texas Instruments is a dual-channel rail-to-rail input/output operational amplifier optimized for ultralow-power, low-voltage portable systems. It delivers 220 kHz gain-bandwidth, ±10 mA output drive, 23 µA/channel supply current, and 20 µV typical input offset voltage across 2.7 V to 6 V operation - enabling precision signal conditioning in battery-powered medical sensors and data acquisition front-ends.
For engineers reviewing the TLV2453CD datasheet, TLV2453CD pinout, TLV2453CD application, or TLV2453CD equivalent, this page provides verified package mapping (14-pin SOIC), shutdown functionality details, rail-to-rail dynamic range implications, and real-world alternatives validated for micropower dual-opamp replacement in 3 V–5 V sensor interfaces.
Technical Context
The TLV2453CD 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), enabling full-scale utilization of low-voltage supplies. Its 220 kHz gain-bandwidth product and 0.11 V/µs slew rate support stable unity-gain buffering and low-frequency amplification without phase margin degradation.
Shutdown control (active-low on pins 1 and 8) reduces per-channel quiescent current to 16 nA while placing outputs in high-impedance state - critical for duty-cycled sensor nodes. Fully specified over 0°C to 70°C (C-suffix), it maintains 106 dB PSRR and 80 dB CMRR at 5 V, ensuring robustness against supply noise and common-mode interference in mixed-signal PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - supports single-cell Li-ion (3.0–3.7 V) and two-cell alkaline (3.0–3.2 V) battery operation without regulation. |
| Gain-Bandwidth Product | 220 kHz - enables stable DC-coupled amplification up to ~20 kHz with gain ≥11, suitable for ECG, pulse oximetry, and thermistor signal chains. |
| Supply Current per Channel | 23 µA - allows continuous operation for >1 year on a 200 mAh coin cell in always-on sensor monitoring applications. |
| Input Offset Voltage (typ) | 20 µV - contributes <0.2% error in 10 mV full-scale bridge sensor outputs, eliminating need for system-level trimming. |
| Output Drive Capability | ±10 mA - drives 500 Ω loads directly (e.g., ADC reference buffers, LED biasing, or DAC output stages) without external transistors. |
| Shutdown Current per Channel | 16 nA - reduces total system standby power to sub-100 nA when paired with microcontroller GPIO-controlled shutdown. |
| Power Supply Rejection Ratio | 106 dB - suppresses 10 mV ripple on 3.3 V LDO output to <25 nV at op-amp input, preserving ADC effective resolution. |
Pinout & Package
TLV2453CD is housed in a 14-pin SOIC (D package) with 1.27 mm pitch, 8.65 mm × 3.91 mm body, and moisture sensitivity level 1 - compatible with standard reflow profiles and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | SHDN (Channel 1 & 2 Shutdown) | Active-low digital control: logic low disables both amplifiers and forces outputs to high-Z; requires pull-up for normal operation. |
| 2, 5 | 1IN−, 2IN− | Inverting inputs - high-impedance CMOS nodes (10⁹ Ω) accepting signals from resistive sensors or DACs without loading. |
| 3, 6 | 1IN+, 2IN+ | Non-inverting inputs - rail-to-rail common-mode range (0 V to VDD) enables direct connection to single-supply sensor outputs. |
| 4 | GND | Analog ground reference - must be star-connected to ADC reference and LDO return to minimize noise coupling. |
| 7, 14 | 1OUT, 2OUT | Rail-to-rail outputs - swing within 250 mV of VDD/GND at 2.5 mA, supporting 12-bit ADC input ranges with 3 V supply. |
| 11 | VDD+ | Positive supply - accepts 2.7–6 V; decoupling capacitor (100 nF X7R) required within 5 mm for stability at full GBW. |
| 9, 10, 12, 13 | NC | No internal connection - left unconnected; no thermal or EMI benefit from grounding or routing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Input/Output | Enables full 0–3.3 V signal swing in single-supply 3.3 V systems, maximizing ADC dynamic range without level-shifting circuitry. |
| Ultralow 23 µA/Channel Supply Current | Reduces thermal drift and PCB self-heating in densely packed analog sections, improving long-term measurement stability. |
| 16 nA/Channel Shutdown Mode | Permits microcontroller-gated operation in intermittent-sampling architectures (e.g., wearable biosensors sampling every 10 s). |
| 220 kHz Gain-Bandwidth at 23 µA | Outperforms competing micropower op-amps by >2× in AC performance, allowing higher closed-loop gains without bandwidth sacrifice. |
| Specified from 0°C to 70°C (C-suffix) | Validates parametric performance for commercial-grade industrial controls, consumer health devices, and test equipment. |
Applications
| Portable Patient Monitor Front-End | Low-Power Data Acquisition System |
|---|---|
Use Scenario: Amplifying weak bio-potential signals (e.g., ECG leads) in handheld patient monitors powered by CR2032 batteries. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end providing gain, filtering, and rail-to-rail buffering before 12-bit SAR ADC sampling. Use Value: 20 µV input offset ensures <0.5% baseline error in 5 mV ECG signals; 23 µA/channel extends battery life beyond 12 months at 1 Hz sampling. | Use Scenario: Signal conditioning for thermistor, RTD, and strain gauge measurements in battery-operated environmental loggers. IC Role / Device Role / Timing Role: Precision dual op-amp implementing ratiometric bridge excitation and differential amplification in 3.3 V microcontroller-based DAQ. Use Value: 106 dB PSRR rejects switching regulator noise; ±10 mA drive supports 500 Ω anti-alias filter loads without gain error. |
| Wearable Biosensor Analog Front-End | Industrial Sensor Transmitter |
Use Scenario: Pulse oximetry analog processing in wrist-worn wearables requiring continuous SpO₂ monitoring with minimal power draw. IC Role / Device Role / Timing Role: Dual op-amp performing synchronous detection (AC/DC separation) and LED current control feedback in 3 V systems. Use Value: Rail-to-rail I/O eliminates level shifters; shutdown mode cuts idle current to 32 nA total (both channels), enabling multi-week operation. | Use Scenario: 4–20 mA loop transmitter for pressure/temperature sensors in factory automation, powered from loop supply. IC Role / Device Role / Timing Role: Dual op-amp implementing sensor excitation, linearization, and V/I conversion in 24 V loop-powered designs. Use Value: 6 V max supply rating accommodates loop transients; 80 dB CMRR rejects common-mode noise from shared ground returns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2453ID | Same electrical specs but rated for −40°C to 125°C; 45 µA max IDD vs 42 µA for TLV2453CD at 5 V. | Required for under-hood automotive or industrial environments exceeding 70°C ambient. | Select TLV2453ID only if extended temperature qualification is mandatory; otherwise TLV2453CD offers lower cost and same performance at room temperature. |
| MCP6022-E/SN | Higher 1 MHz GBW and 2.3 V/µs slew rate but consumes 100 µA/channel; no shutdown function; 1.8–6 V supply. | Suitable where bandwidth >100 kHz is needed (e.g., ultrasonic sensor receivers), but incompatible with strict <30 µA power budgets. | Choose MCP6022-E/SN only when AC performance outweighs power constraints; TLV2453CD remains optimal for sub-25 µA, <250 kHz applications. |
Compared with TLV2453ID, the TLV2453CD trades extended temperature range for lower cost and identical room-temperature performance; compared with MCP6022-E/SN, it sacrifices bandwidth and speed to achieve <25% of the supply current - making it the sole choice for multi-year battery life in low-frequency sensor interfaces.
Availability
TLV2453CD is available at Aetrix Electronics and suitable for portable medical devices, battery-powered data loggers, and industrial sensor transmitters requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV2453CD 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 TLV245x family was designed specifically for ultralow-power, rail-to-rail signal conditioning in portable and battery-constrained applications - prioritizing supply current efficiency without compromising DC accuracy or output drive.
FAQ
What is the maximum operating supply voltage for TLV2453CD?
The absolute maximum supply voltage for TLV2453CD is 7 V, but the recommended operating range is 2.7 V to 6 V per the datasheet. Operating at 6 V maximizes output swing and PSRR, while staying safely below the 7 V limit prevents latch-up or permanent damage. Exceeding 6 V voids parametric guarantees and risks reliability degradation over time.
Does TLV2453CD support true rail-to-rail input and output operation?
Yes, TLV2453CD supports true rail-to-rail input (common-mode range from 0 V to VDD) and rail-to-rail output (swings within 250 mV of both rails at 2.5 mA load). This is confirmed in the datasheet's "Rail-To-Rail Input/Output (RRIO)" feature list and electrical characteristics tables, enabling full utilization of 3.3 V or 5 V supplies in single-ended configurations without external level-shifting components.
How does the shutdown function work on TLV2453CD?
The TLV2453CD features two independent active-low shutdown pins (pins 1 and 8) controlling each amplifier channel. Pulling either pin low disables its respective amplifier, reducing supply current to 16 nA/channel and placing the output in high-impedance state. Both channels remain functional when pins are tied to VDD or pulled high via resistor; no external pulldown is required for normal operation.
What is the typical input offset voltage of TLV2453CD and how does it affect precision designs?
The typical input offset voltage of TLV2453CD is 20 µV at 25°C, with a maximum of 1300 µV over the full 0°C to 70°C range. In a 12-bit 3.3 V ADC system, this contributes ≤0.5 LSB error at room temperature - acceptable for most medical and industrial sensor interfaces without calibration. For ultra-high-precision use, pairing with auto-zeroed ADCs or software offset correction is recommended.
Can TLV2453CD drive capacitive loads, and what is the maximum stable capacitance?
TLV2453CD is stable with capacitive loads up to 1000 pF when driving a 10 kΩ resistive load, as confirmed by phase margin measurements (56°) in the datasheet. For loads >100 pF, adding a 10–100 Ω series resistor between output and capacitance restores stability. Driving >1 nF directly may cause peaking or oscillation unless compensated per Figure 24's phase margin vs. load capacitance curve.
TLV2453CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 14-SOIC
TLV2453CD FAQ
1.How can I place an order for TLV2453CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2453CD 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 TLV2453CD reliable?
The price and inventory of TLV2453CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2453CD is usually 5 days.
3.What payment methods are accepted for TLV2453CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2453CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2453CD?
TLV2453CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2453CD 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 TLV2453CD?
For technical support, including TLV2453CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2453CD requirements.
6.How does Aetrix verify that TLV2453CD is sourced from the original manufacturer or authorized distributors?
All TLV2453CD 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 TLV2453CD meets industry standards.
7.What is the process for return or replacement of TLV2453CD?
All TLV2453CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2453CD, 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 TLV2453CD part is unused and in its original packaging.
Return procedure for TLV2453CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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