TLC542IN Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The TLC542IN is an 8-bit successive-approximation ADC with an on-chip 11-channel analog multiplexer and serial output from Texas Instruments. It achieves a maximum conversion time of 20 µs and accepts analog inputs up to 5.5 V, with a 20-pin DIP package. Suitable for multi-channel data acquisition systems requiring a simple 3-wire serial interface.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- TLC542IN Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TLC542IN?
- 11-channel on-chip analog multiplexer enables direct connection of up to 11 analog sensors without external MUX components
- 8-bit successive-approximation conversion with 20 µs maximum conversion time and 25 kSPS throughput for real-time multi-channel sampling
- 3-wire serial (SPI-compatible) output interface simplifies MCU interfacing and reduces digital I/O pin count in data-acquisition designs
What is TLC542IN used for?
The TLC542IN is used in industrial data acquisition systems, environmental monitoring boards, and instrumentation equipment that need to digitise multiple analog sensor signals through a single ADC. Its 11-channel MUX and 8-bit resolution make it cost-effective for applications such as temperature array scanning, multi-axis position sensing, and battery cell monitoring where moderate resolution is acceptable. The through-hole 20-pin DIP package is convenient for prototyping, educational projects, and low-volume production boards where PTH assembly is preferred.
What are the specifications of TLC542IN?
| YTEOL | 0 |
| Analog Input Voltage-Max | 5.5V |
| Conversion Time-Max | 20 µs |
| Converter Type | ADC, SUCCESSIVE APPROXIMATION |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Linearity Error-Max (EL) | 0.1953% |
| Number of Analog In Channels | 11 |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Output Bit Code | BINARY |
| Output Format | SERIAL |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Sample Rate | 0.04MHz |
| Sample and Hold / Track and Hold | SAMPLE |
| Supply Current-Max | 2mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.30 |
Where can I find the TLC542IN datasheet?
TLC542IN Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TLC542IN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many analog channels can TLC542IN sample, and how does the on-chip MUX simplify board design?
TLC542IN integrates an 11-channel analog multiplexer on the same die as the 8-bit ADC core, allowing up to 11 separate analog signals to share a single ADC without external switching components. This reduces BOM count and PCB area compared to designs using a discrete MUX and ADC, and the channel selection is controlled over the 3-wire serial interface, requiring only 3 digital I/O pins from the host MCU.
What is the conversion speed and resolution of TLC542IN for a multi-sensor data-logging application?
TLC542IN provides 8-bit resolution with a maximum conversion time of 20 µs per sample, corresponding to a maximum sample rate of approximately 25 kSPS per channel. For a 10-channel scan, the effective per-channel update rate is about 2.5 kSPS, which is sufficient for slow-varying signals such as temperature sensors (typically 0.1 Hz to 10 Hz bandwidth) and analog potentiometers in industrial control panels.
What input voltage range does TLC542IN accept and what supply voltage is required?
TLC542IN accepts analog input voltages up to 5.5 V maximum. It typically operates from a 5 V single supply, and the analog input range spans from 0 V to the positive supply voltage, making it directly compatible with 0 V to 5 V sensor outputs and resistive dividers referenced to the supply rail. The 5.5 V absolute maximum input rating provides a small safety margin above a 5 V rail.
For a prototyping project, does the TLC542IN DIP package offer an advantage over surface-mount ADCs?
Yes. The TLC542IN is available in a 20-pin DIP package (PDIP-T20) that inserts directly into solderless breadboards and standard PTH proto-boards, making it accessible for rapid prototyping and academic lab exercises. There is no need for a breakout board or hot-air soldering station, unlike surface-mount alternatives, which reduces setup time significantly when evaluating the 11-channel acquisition capability or developing firmware for an SPI-based ADC interface.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit