My Inquiry
My Account
Texas Instruments TLC4502CD
- Part No.:
- TLC4502CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC4502CD.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:117
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC4502CD from Texas Instruments is a dual-channel, self-calibrating precision CMOS rail-to-rail output operational amplifier. It achieves 40 µV maximum input offset voltage after digital calibration, 4.7 MHz gain-bandwidth product, 2.5 V/µs slew rate, and ±50 mA output drive-enabling high-accuracy signal conditioning in single-supply data acquisition systems.
For engineers reviewing the TLC4502CD datasheet, TLC4502CD pinout, TLC4502CD application, or TLC4502CD equivalent, this page delivers verified specifications, calibrated performance context, package-confirmed pin functions, real-world use cases in measurement and industrial control, and two validated alternative parts with documented functional trade-offs.
Technical Context
The TLC4502CD integrates on-chip successive approximation register (SAR) logic that performs one-time digital offset trimming within 300 ms of power-up, then removes calibration circuitry from the signal path. Its rail-to-rail output stage delivers full-swing capability into loads up to 1000 pF while maintaining stability.
It operates from 4 V to 6 V supply, supports common-mode input range from VDD– to VDD+ – 2.3 V, and is characterized across 0°C to 70°C. Input bias current remains at 1 pA typical, enabling high-impedance sensor interfacing without significant error contribution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 40 µV - Calibrated value ensures ≤0.004% error in 1-V full-scale precision amplification |
| Offset Drift | 1 µV/°C - Enables stable DC accuracy over temperature without external compensation |
| Gain-Bandwidth Product | 4.7 MHz - Supports closed-loop gains up to 10 at ≥470 kHz without phase margin loss |
| Slew Rate | 2.5 V/µs - Sustains 10-Vpp output at 100 kHz for fast settling in active filters and ADC drivers |
| Rail-to-Rail Output | Swings within 10 mV of rails - Maximizes dynamic range in 3.3-V or 5-V single-supply systems |
| Input Bias Current | 1 pA typical - Allows direct connection to high-Z sources like piezoelectric sensors or pH electrodes |
| Calibration Time | 300 ms - Completes auto-zero before system initialization completes; no external trigger required |
Pinout & Package
Package: SOIC-8 (D package), 150 mil width, surface-mount, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Channel 1 output | Delivers rail-to-rail buffered signal; drives ≥1 kΩ load with <0.1% THD+N at 10 kHz |
| 2 (IN–1) | Channel 1 inverting input | High-impedance node (10¹² Ω); accepts differential signals with 85 dB CMRR up to 100 kHz |
| 3 (IN+1) | Channel 1 non-inverting input | Matches IN–1 in bias current (1 pA); enables precision instrumentation amplifier front-end configurations |
| 4 (GND / VDD–) | Negative supply / ground reference | Single-supply operation uses this as 0 V reference; dual-supply mode connects to –2.5 V |
| 5 (IN+2) | Channel 2 non-inverting input | Electrically isolated from Channel 1; supports independent gain/offset settings per channel |
| 6 (IN–2) | Channel 2 inverting input | Same input specs as Pin 2; enables dual-channel differential sensing or matched filter pairs |
| 7 (OUT2) | Channel 2 output | Identical AC/DC performance to Pin 1; allows simultaneous dual-signal processing |
| 8 (VDD+) | Positive supply | Accepts 4–6 V; internal regulation ensures consistent calibration and biasing across supply range |
Key Features
| Feature | Design Value |
|---|---|
| Self-Calibrating Offset | Digital SAR-based trimming reduces initial VIO to ≤40 µV without laser trimming or chopper noise |
| Rail-to-Rail Output | Drives loads to within 10 mV of VDD+ and GND, preserving >99% of available voltage headroom |
| Capacitive Load Drive | Stable with up to 1000 pF directly on output-eliminates need for isolation resistors in ADC buffer designs |
| Low Input Bias Current | 1 pA typical enables use with megohm-level source impedances without gain error or drift degradation |
| Wide Temperature Range | Specified from 0°C to 70°C-supports commercial-grade instrumentation and portable test equipment |
Applications
| Data Acquisition Systems | Industrial Process Monitoring |
|---|---|
Use Scenario: High-resolution analog front-end for 16-bit SAR ADCs sampling thermocouple or strain gauge signals. IC Role / Device Role / Timing Role: Precision buffer and gain stage; rejects common-mode noise while preserving microvolt-level signal integrity. Use Value: 40 µV max VIO and 1 µV/°C drift ensure <0.025% total unadjusted error over 0–70°C-meeting Class A industrial DAQ requirements. | Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters in factory automation. IC Role / Device Role / Timing Role: Rail-to-rail I/V converter and output driver operating from 5 V supply with minimal headroom loss. Use Value: ±50 mA output drive sustains 20 mA loop current while delivering full 0–5 V output swing-reducing external component count. |
| Portable Digital Scales | Medical Sensor Interfaces |
Use Scenario: Amplifying low-level mV outputs from load cell bridges in battery-powered weighing devices. IC Role / Device Role / Timing Role: Low-power, high-precision instrumentation amplifier core with integrated offset calibration. Use Value: 1 pA input bias prevents bridge imbalance errors; 300 ms auto-calibration occurs during power-on sequence-no user intervention needed. | Use Scenario: Front-end amplification for ECG electrode signals in handheld patient monitors. IC Role / Device Role / Timing Role: First-stage gain and filtering element with ultra-low input current to avoid electrode polarization. Use Value: 12 nV/√Hz input noise at 1 kHz and 85 dB CMRR suppress 50/60 Hz interference-meeting IEC 60601-2-27 immunity thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC4502ID | Wider temperature range (–40°C to 125°C); same 40 µV VIO max but higher 100 µA max supply current | Required for under-hood automotive or industrial environments exceeding 70°C ambient | Select when extended temperature operation is mandatory; otherwise TLC4502CD offers lower cost and identical precision at commercial grade |
| OPA2188AIDR | Zero-drift architecture (0.003 µV/°C drift); 15 µV VIO max; 2 MHz GBW; 650 µA supply current per channel | Better long-term DC stability but lower bandwidth and drive capability than TLC4502CD | Choose for ultra-stable DC-coupled applications where drift dominates error budget; avoid when driving capacitive loads or needing >2 V/µs slew |
Compared with TLC4502ID, the TLC4502CD trades extended temperature support for lower cost and power; versus OPA2188AIDR, it delivers higher speed and output drive at the expense of sub-µV/°C drift-making it optimal for bandwidth-constrained precision signal chains.
Availability
TLC4502CD is available at Aetrix Electronics and suitable for data acquisition systems, industrial process monitoring, and portable digital scales requiring stable component supply with guaranteed long-term sourcing.
Supply support for TLC4502CD 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 amplifiers and signal chain solutions.
The TLC4502CD belongs to TI's Self-Cal™ precision op-amp family, engineered specifically for applications demanding high DC accuracy without chopper-induced noise or complex external calibration-targeting test equipment, industrial sensors, and portable instrumentation.
FAQ
What is the input offset voltage specification for the TLC4502CD?
The TLC4502CD has a maximum input offset voltage of 40 µV after its internal self-calibration sequence completes within 300 ms of power-up. This value is guaranteed over the full commercial temperature range (0°C to 70°C) and represents the worst-case residual error after digital trimming. The typical offset is 10 µV, and the temperature coefficient remains tightly controlled at 1 µV/°C-critical for maintaining accuracy in temperature-varying environments where the TLC4502CD is deployed.
Does the TLC4502CD require external components to perform calibration?
No, the TLC4502CD performs fully autonomous calibration using on-chip successive approximation register (SAR) logic and internal D/A circuitry-no external pins, clocks, or components are needed. Calibration initiates automatically at power-on and completes in 300 ms, after which the circuit functions as a standard precision op-amp with no ongoing calibration overhead. This eliminates board space, BOM cost, and timing dependencies associated with manual or external auto-zero schemes used in other precision amplifiers including the TLC4502CD.
Can the TLC4502CD drive heavy capacitive loads stably?
Yes, the TLC4502CD is explicitly characterized and specified to remain stable when driving up to 1000 pF directly at its output-verified across all operating conditions in the official datasheet. This capability eliminates the need for series isolation resistors typically required with conventional op-amps, simplifying PCB layout and preserving signal fidelity in applications such as ADC input buffering or active filter design where the TLC4502CD is commonly applied.
What supply voltage range does the TLC4502CD support?
The TLC4502CD operates from a single supply of 4 V to 6 V, or dual supplies of ±2.5 V. Its recommended operating conditions specify VDD = 4 V to 6 V for commercial-grade use, with full functionality-including rail-to-rail output swing, 40 µV offset calibration, and 4.7 MHz bandwidth-guaranteed across this range. Operation outside this window may compromise performance or reliability, so designs using the TLC4502CD must maintain supply voltage within these bounds.
Is the TLC4502CD pin-compatible with other devices in the TLC450x family?
Yes, the TLC4502CD shares identical SOIC-8 (D package) pinout with TLC4502ID, TLC4502AQD, and TLC4502MD-ensuring mechanical and electrical compatibility across temperature grades. All variants use Pins 1–8 for OUT1, IN–1, IN+1, GND/VDD–, IN+2, IN–2, OUT2, and VDD+, respectively. This allows drop-in replacement for thermal or qualification upgrades without PCB revision, provided the TLC4502CD's 0°C to 70°C rating meets system requirements.
TLC4502CD 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:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.5V/µs
- Gain Bandwidth Product:
- 4.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 10 µV
- Current - Supply:
- 2.5mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC4502CD FAQ
1.How can I place an order for TLC4502CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC4502CD 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 TLC4502CD reliable?
The price and inventory of TLC4502CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC4502CD is usually 5 days.
3.What payment methods are accepted for TLC4502CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC4502CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC4502CD?
TLC4502CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC4502CD 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 TLC4502CD?
For technical support, including TLC4502CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC4502CD requirements.
6.How does Aetrix verify that TLC4502CD is sourced from the original manufacturer or authorized distributors?
All TLC4502CD 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 TLC4502CD meets industry standards.
7.What is the process for return or replacement of TLC4502CD?
All TLC4502CD units undergo pre-shipment inspection (PSI). If there is an issue with TLC4502CD, 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 TLC4502CD part is unused and in its original packaging.
Return procedure for TLC4502CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC4502CD Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
