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Texas Instruments TLC4541ID
- Part No.:
- TLC4541ID
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC4541ID.pdf
- Description:
- IC ADC 16BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,550
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Product details
Overview
TLC4541ID from Texas Instruments is a 16-bit, single-channel unipolar successive approximation register (SAR) analog-to-digital converter (ADC) operating from a single 5-V supply. It delivers 200-KSPS sampling rate, ±2.5 LSB max INL, and 84.5 dB SINAD at 15 kHz input - optimized for precision measurement in industrial process control systems.
For engineers reviewing the TLC4541ID datasheet, TLC4541ID pinout, TLC4541ID application, or TLC4541ID equivalent, key selection considerations include its SPI/DSP-compatible serial interface with FS support, rail-to-rail 500 kHz analog input bandwidth, auto-power-down mode (5 µA), and SOIC-8 package compatibility with 12/14/16-bit pin-compatible family members.
Technical Context
The TLC4541ID implements a charge-redistribution SAR architecture with an integrated oscillator-based conversion clock (max 2.94 µs conversion time). It supports three control modes: SPI via CS-only (CPOL=0, CPHA=1), DSP frame-sync via FS-only (CS grounded), or hybrid CS+FS for multi-device TMS320 DSP interfaces.
Its analog front-end accepts rail-to-rail unipolar inputs (0 V to VDD) with 11–14 pF input capacitance and 100 MΩ input impedance when CS is high. Digital interface uses MSB-first 16-bit serial output on SDO, synchronized to SCLK up to 15 MHz, with timing-critical setup/hold requirements validated for both microcontroller and DSP host environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit unipolar straight binary output (0000h = GND, FFFFh = VREF − 1 LSB) |
| Sampling Rate | 200 KSPS maximum - enables real-time capture of signals up to 500 kHz full-power bandwidth (−1 dB) |
| SINAD / SNR | 84.5 dB / 85 dB at 15 kHz - ensures ≥13.7 effective bits for high-fidelity signal digitization |
| INL / DNL | ±2.5 LSB max / −1 to +2 LSB max - guarantees monotonicity and low code-dependent gain error |
| Supply Current | 3.5 mA active, 5 µA auto-power-down - reduces thermal load and enables battery-backed operation |
| Analog Input BW | 500 kHz (−1 dB), 1 MHz (−3 dB) - supports anti-aliasing filter design with ≤1 µs aperture jitter |
| Reference Input | External 4.096 V to 5 V reference (VREF) - sets full-scale range; input impedance 20–25 kΩ during conversion |
Pinout & Package
Package: 8-pin SOIC (D), RoHS-compliant, MSL Level-1, −40°C to +85°C operating temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CS | Chip Select input | Active-low enable for serial interface; falling edge initiates sampling cycle or resets device (1–8 SCLK edges required) |
| 2 - REF | External reference voltage input | Defines full-scale analog input range (4.096 V to 5 V); 20–25 kΩ dynamic input impedance during conversion |
| 3 - GND | Analog/digital ground return | Common reference for all analog and digital circuitry; must be low-impedance connection to minimize noise coupling |
| 4 - AIN | Analog input channel | Single-ended unipolar input (0 V to VDD); rail-to-rail capable with 500 kHz −1 dB bandwidth |
| 5 - SCLK | Serial clock input | Host-provided clock up to 15 MHz; timing-critical for data valid windows (min 66 ns cycle time) |
| 6 - VDD | Positive supply voltage | Single 4.5–5.5 V supply; powers internal SAR, logic, and reference buffer circuits |
| 7 - FS | DSP frame sync input | Optional rising-edge trigger for TMS320 DSP interface; used instead of CS for frame-aligned sampling |
| 8 - SDO | Serial data output | 3-state MSB-first 16-bit output; high-impedance when CS high or after 17th SCLK rising edge |
Key Features
| Feature | Design Value |
|---|---|
| Built-in conversion clock | Eliminates external crystal or oscillator; enables fixed 2.94 µs max conversion time independent of host SCLK |
| SPI/DSP dual-interface support | Configurable for microcontroller SPI (CS-only) or TMS320 DSP (FS-triggered) without hardware change |
| Rail-to-rail analog input | Accepts 0 V to VDD input range with 500 kHz bandwidth - simplifies sensor interface and eliminates level-shifting |
| Auto-power-down mode | Reduces current to 5 µA between conversions; wake-up latency <1 µs ensures no sampling loss at 200 KSPS |
| Pin-compatible family | Shares SOIC-8 and VSSOP-8 footprints with 12/14/16-bit TLC45xx variants - enables resolution scaling without PCB redesign |
Applications
| Industrial Process Control | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: High-accuracy voltage/current monitoring in PLC analog I/O modules. IC Role / Device Role / Timing Role: Primary 16-bit ADC digitizing sensor outputs with 200 KSPS throughput and low THD (−94 dB). Use Value: Enables sub-0.01% measurement accuracy over temperature (−40°C to +85°C) using internal auto-calibration and stable reference interface. |
Use Scenario: Precision DC parametric testing of semiconductor devices under bias. IC Role / Device Role / Timing Role: High-SINAD (84.5 dB) ADC capturing transient response waveforms with minimal harmonic distortion. Use Value: Delivers 13.7 ENOB at 15 kHz, supporting accurate characterization of leakage, gain, and linearity in production test fixtures. |
| Motor Control Feedback | Energy Metering |
Use Scenario: Real-time phase current sensing in servo drives with isolated amplifiers. IC Role / Device Role / Timing Role: Unipolar ADC sampling shunt voltage with 500 kHz analog bandwidth and fast 2.94 µs conversion. Use Value: Supports closed-loop current regulation at >10 kHz PWM frequencies while maintaining <±2.5 LSB INL across operating temperature. |
Use Scenario: Voltage and current channel digitization in Class 0.5 polyphase energy meters. IC Role / Device Role / Timing Role: Low-power 16-bit ADC acquiring metrology-grade samples with 85 dB SNR and 95 dB SFDR. Use Value: Meets IEC 62053-21 accuracy requirements using external 4.096 V reference and auto-power-down between readings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8325IPW | 16-bit, 100-KSPS, SPI-only interface (no FS pin), 85 dB SNR, 3.3-V supply only | Lacks DSP frame-sync capability; requires level-shifting for 5-V systems; lower throughput limits high-speed control loops | Select when 3.3-V system integration and simplified SPI timing outweigh need for 200-KSPS or DSP compatibility |
| TLC4545ID | Same family, pseudo-differential input (AIN+/AIN−), identical timing/power specs, same SOIC-8 package | Supports ground-noise rejection and zero-scale offset cancellation; requires matched input routing and differential driver | Choose for noisy industrial environments where common-mode rejection improves measurement integrity over single-ended AIN |
Compared with ADS8325IPW and TLC4545ID, the TLC4541ID uniquely balances 200-KSPS throughput, 5-V operation, and dual-mode (SPI/DSP) flexibility in a drop-in SOIC-8 footprint - making it optimal for upgrade paths from legacy 12-bit converters or migration from microcontroller-centric to DSP-based architectures.
Availability
TLC4541ID is available at Aetrix Electronics and suitable for industrial process control, automated test equipment, and motor control applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TLC4541ID 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 over 50 years of innovation in precision data acquisition.
The TLC4541ID belongs to TI's TLC45xx family of low-power, high-performance SAR ADCs designed specifically for cost-sensitive, space-constrained industrial and instrumentation systems requiring 16-bit resolution without external clocking or complex calibration.
FAQ
What is the maximum SCLK frequency supported by the TLC4541ID?
The TLC4541ID supports serial clock (SCLK) frequencies up to 15 MHz, with minimum cycle time of 66 ns. This allows full 16-bit data transfer within 1.07 µs, enabling tight timing margins in high-throughput systems. The device maintains specified AC performance (SINAD, THD) at this maximum rate when VDD = 5 V and VREF = 4.096 V, as verified in the SLAS293 datasheet timing tables.
Does the TLC4541ID require an external oscillator or crystal?
No, the TLC4541ID does not require an external oscillator or crystal. It integrates a built-in oscillator that serves as the conversion clock, delivering a guaranteed maximum conversion time of 2.94 µs. This eliminates external timing components, reduces BOM count, and ensures consistent conversion latency regardless of host SCLK frequency - a key advantage confirmed in the "Built-In Conversion Clock" feature list and timing section of the SLAS293 datasheet.
How does the FS pin function on the TLC4541ID compared to the TLC4545ID?
The FS pin is exclusive to the TLC4541ID and provides a dedicated frame-sync input for TMS320 DSP interfacing, allowing rising-edge-triggered sampling without asserting CS. The TLC4545ID lacks an FS pin and relies solely on CS for all control. In TLC4541ID, FS can be used alone (with CS grounded) or alongside CS for multi-device synchronization - a distinction clearly defined in the Terminal Functions table and Principles of Operation section of SLAS293.
What is the analog input voltage range specification for the TLC4541ID?
The TLC4541ID supports a rail-to-rail unipolar analog input range from 0 V to VDD (4.5 V to 5.5 V), with absolute maximum rating of −0.3 V to VDD + 0.3 V. Its 500 kHz −1 dB bandwidth and 100 ps aperture jitter ensure accurate sampling across this full range. This specification is explicitly stated in the "Rail-to-Rail Analog Input With 500 kHz BW" feature and confirmed in the Recommended Operating Conditions table of SLAS293.
Can the TLC4541ID operate from a 3.3-V supply?
No, the TLC4541ID is specified only for 4.5 V to 5.5 V operation, with nominal 5-V supply. Its absolute maximum supply rating is 6.5 V, and recommended minimum is 4.5 V. Attempting 3.3-V operation violates the Recommended Operating Conditions and risks failure to meet AC specifications (SINAD, THD) or even functional operation. For 3.3-V systems, TI recommends alternatives like the ADS8325IPW or ADS8860 series.
TLC4541ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
TLC4541ID FAQ
1.How can I place an order for TLC4541ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC4541ID 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 TLC4541ID reliable?
The price and inventory of TLC4541ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC4541ID is usually 5 days.
3.What payment methods are accepted for TLC4541ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC4541ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC4541ID?
TLC4541ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC4541ID 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 TLC4541ID?
For technical support, including TLC4541ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC4541ID requirements.
6.How does Aetrix verify that TLC4541ID is sourced from the original manufacturer or authorized distributors?
All TLC4541ID 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 TLC4541ID meets industry standards.
7.What is the process for return or replacement of TLC4541ID?
All TLC4541ID units undergo pre-shipment inspection (PSI). If there is an issue with TLC4541ID, 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 TLC4541ID part is unused and in its original packaging.
Return procedure for TLC4541ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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