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Texas Instruments TLC4541IDGKR
- Part No.:
- TLC4541IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLC4541IDGKR.pdf
- Description:
- IC ADC 16BIT SAR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,701
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Product details
Overview
TLC4541IDGKR from Texas Instruments is a 16-bit, single-channel unipolar successive-approximation analog-to-digital converter (SAR ADC) operating from a single 5-V supply. It delivers 200-KSPS sampling rate, ±2.5 LSB max INL, 84.5 dB SINAD at 15 kHz input, and rail-to-rail analog input with 500 kHz bandwidth - enabling high-fidelity data acquisition in industrial process control systems.
For engineers reviewing the TLC4541IDGKR datasheet, TLC4541IDGKR pinout, TLC4541IDGKR application, or TLC4541IDGKR equivalent, key selection considerations include its SPI/DSP-compatible serial interface (up to 15 MHz SCLK), built-in conversion clock (2.94 µs max conversion time), auto-power-down mode (5 µA), and MSOP-8 (DGK) package compatibility with 12/14/16-bit family members.
Technical Context
The TLC4541IDGKR implements a charge-redistribution SAR architecture with internal oscillator-based conversion clocking, eliminating external timing components. Its unipolar input structure accepts 0 V to VDD analog signals referenced to an external voltage applied at REF pin, supporting full-scale codes from 0000h (GND) to FFFFh (VREF − 1 LSB).
It supports three control modes: SPI-style via CS-only (CPOL=0, CPHA=1), DSP frame-sync via FS pin (TLC4541-specific), or hybrid CS+FS for multi-device TMS320 DSP interfaces. Serial output is MSB-first, 16-bit unipolar binary, with SDO entering high-impedance state after 17th SCLK rising edge or CS rising edge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit unipolar straight binary output (0000h to FFFFh) |
| Sampling Rate | 200 KSPS maximum - enables real-time capture of 500 kHz full-power bandwidth signals |
| INL / DNL | ±2.5 LSB max integral linearity / −1 to +2 LSB differential linearity - ensures monotonicity and <0.04% end-point error |
| SINAD / SFDR | 84.5 dB / −95 dB at 15 kHz - supports >13.7 ENOB for precision measurement applications |
| Supply & Power | Single 4.5–5.5 V supply; 3.5 mA active current, 5 µA auto-power-down - suitable for low-power embedded systems |
| Serial Interface | SPI/DSP-compatible 3-wire (CS/SCLK/SDO); up to 15 MHz SCLK - interfaces directly with TMS320 DSP or microcontroller SPI ports |
| Conversion Time | Max 2.94 µs - determined by internal 7.5–12 MHz oscillator, no external clock required |
Pinout & Package
VSSOP-8 (DGK) package: 2.3 mm × 2.0 mm, 0.5 mm pitch, exposed thermal pad (not electrically connected), RoHS-compliant NIPDAUAG finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS | Chip Select Input | Active-low enable for serial interface; falling edge initiates sampling cycle; can be grounded when using FS mode |
| 2: REF | External Reference Input | Accepts 4–5 V reference voltage; sets full-scale range (0 V to VREF); input impedance 20–25 kΩ during conversion |
| 3: GND | Analog/Digital Ground | Common return for internal circuitry; all voltage measurements referenced to this node |
| 4: AIN | Analog Input | Single-ended unipolar input (0 V to VDD); rail-to-rail capable with 500 kHz −3 dB bandwidth |
| 5: SCLK | Serial Clock Input | Accepts up to 15 MHz clock; data valid on falling edge, changes on rising edge (CPHA=1) |
| 6: VDD | Positive Supply | 4.5–5.5 V DC supply; powers analog and digital sections; decoupling recommended near pin |
| 7: FS | DSP Frame Sync Input | TLC4541-specific; rising edge triggers MSB output; used for TMS320 DSP synchronization (CS may be tied low) |
| 8: SDO | Serial Data Output | 3-state MSB-first 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; 2.94 µs max conversion time derived from internal 7.5–12 MHz oscillator |
| Rail-to-rail analog input | Supports 0 V to VDD input range with 500 kHz bandwidth - simplifies signal conditioning for sensor interfaces |
| Auto-power-down mode | Reduces supply current to 5 µA between conversions - extends battery life in portable instrumentation |
| PIN-compatible family | Shares 8-pin SOIC (D) and VSSOP (DGK) footprints with 12/14/16-bit TLC45xx variants - enables design reuse and resolution scaling |
| DSP-optimized interface | FS pin enables direct TMS320 DSP integration without glue logic; supports frame-sync start-of-conversion signaling |
Applications
| Industrial Process Control | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Monitoring temperature, pressure, and flow sensors in PLC-based control cabinets with 4–20 mA loop interfaces. IC Role / Device Role / Timing Role: High-accuracy 16-bit digitization of conditioned analog sensor outputs at 200 KSPS for closed-loop feedback. Use Value: ±2.5 LSB INL and 84.5 dB SINAD ensure sub-0.04% measurement uncertainty across 0–100°C industrial temperature range. |
Use Scenario: Capturing transient waveforms from DUTs during functional testing in benchtop ATE systems. IC Role / Device Role / Timing Role: Precision unipolar ADC capturing fast-rising edges and harmonic content up to 500 kHz bandwidth. Use Value: 2.94 µs conversion time and 15 MHz SCLK support tight test cycle timing; −95 dB SFDR rejects spurious tones in spectral analysis. |
| Motor Control Feedback | High-Resolution Measurement Systems |
Use Scenario: Sampling current-sense amplifier outputs in servo drive inverters for field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: Real-time digitization of shunt-based phase currents synchronized to PWM cycles via CS or FS trigger. Use Value: Rail-to-rail input and 500 kHz bandwidth capture fast current transients; auto-power-down reduces idle power in multi-axis drives. |
Use Scenario: Digitizing outputs from precision strain gauges, thermistors, and RTDs in portable calibration equipment. IC Role / Device Role / Timing Role: Low-noise 16-bit conversion referenced to stable external VREF (e.g., 4.096 V) for traceable metrology-grade readings. Use Value: 13.7 ENOB and 85 dB SNR meet Class I accuracy requirements; VSSOP-8 footprint enables compact handheld form factors. |
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 |
|---|---|---|---|
| ADS8325IDGSR | 16-bit, 100-KSPS, SPI-only (no FS pin), 2.7–5.5 V supply, 3.5 mW typical power | Lacks DSP frame-sync capability; lower sampling rate but better noise performance (89 dB SNR) | Select when DSP interface is unnecessary and ultra-low noise at lower speed suffices |
| TLC4545IDGKR | 16-bit, 200-KSPS, pseudo-differential input (AIN+/AIN−), same package and timing | Supports common-mode noise rejection and zero-scale offset cancellation via inverted input | Select when measuring floating or noisy signals requiring differential rejection, not unipolar single-ended |
Compared with ADS8325IDGSR and TLC4545IDGKR, the TLC4541IDGKR uniquely balances DSP-native frame-sync capability, unipolar simplicity, and 200-KSPS throughput in a miniature VSSOP-8 package - making it optimal for TMS320-based motor controllers and compact industrial DAQ modules.
Availability
TLC4541IDGKR 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 VSSOP packaging.
Supply support for TLC4541IDGKR 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 90 years of innovation in precision data converters and industrial ICs.
The TLC45xx family was designed for high-performance, low-power data acquisition in space-constrained industrial and instrumentation systems - emphasizing ease of DSP/microcontroller integration, minimal external components, and robust operation across −40°C to 85°C.
FAQ
What is the maximum sampling rate supported by the TLC4541IDGKR?
The TLC4541IDGKR supports a maximum sampling rate of 200 KSPS, achieved using its internal oscillator-based conversion clock. This rate is sustained across the full operating temperature range (−40°C to 85°C) and enables accurate digitization of signals up to 500 kHz bandwidth while maintaining 84.5 dB SINAD performance at 15 kHz input frequency. The TLC4541IDGKR achieves this without requiring external clock circuitry.
Does the TLC4541IDGKR require an external reference voltage?
Yes, the TLC4541IDGKR requires an external reference voltage applied to the REF pin (Pin 2). The reference must be between 4 V and VDD (max 5.5 V), and directly determines the full-scale input range (0 V to VREF). Typical use employs a precision 4.096 V reference to achieve exact 1 mV/LSB scaling. The device does not include an internal reference, and operation is undefined without a valid external reference.
How does the FS pin function on the TLC4541IDGKR?
The FS (Frame Sync) pin (Pin 7) is exclusive to the TLC4541IDGKR and provides DSP-native synchronization: a rising edge on FS releases the MSB to SDO and initiates the sampling cycle. When used with a TMS320 DSP, FS replaces CS as the primary control signal - allowing CS to be tied low - and enables deterministic timing alignment with DSP frame boundaries. This eliminates setup/hold timing constraints inherent in pure SPI mode.
What package type is used for the TLC4541IDGKR?
The TLC4541IDGKR uses the VSSOP-8 (DGK) package: a miniature 2.3 mm × 2.0 mm body with 0.5 mm lead pitch and exposed thermal pad. It is RoHS-compliant with NIPDAUAG lead finish and MSL Level-1 rating (unlimited floor life). This package shares footprint compatibility with the SOIC-8 (D) variant, enabling layout reuse across density tiers.
Can the TLC4541IDGKR operate from a 3.3-V supply?
No, the TLC4541IDGKR is specified only for 4.5 V to 5.5 V operation per its recommended operating conditions. Its rail-to-rail analog input, internal oscillator, and digital interface are optimized for 5-V systems. Attempting 3.3-V operation violates absolute maximum ratings and will result in undefined behavior, including failure to sample, incorrect conversion results, or permanent damage. For 3.3-V systems, consider the ADS8325 or similar 2.7–5.5 V SAR ADCs.
TLC4541IDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
TLC4541IDGKR FAQ
1.How can I place an order for TLC4541IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC4541IDGKR 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 TLC4541IDGKR reliable?
The price and inventory of TLC4541IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC4541IDGKR is usually 5 days.
3.What payment methods are accepted for TLC4541IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC4541IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC4541IDGKR?
TLC4541IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC4541IDGKR 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 TLC4541IDGKR?
For technical support, including TLC4541IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC4541IDGKR requirements.
6.How does Aetrix verify that TLC4541IDGKR is sourced from the original manufacturer or authorized distributors?
All TLC4541IDGKR 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 TLC4541IDGKR meets industry standards.
7.What is the process for return or replacement of TLC4541IDGKR?
All TLC4541IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLC4541IDGKR, 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 TLC4541IDGKR part is unused and in its original packaging.
Return procedure for TLC4541IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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