My Inquiry
My Account
Texas Instruments TLV2541CDGK
- Part No.:
- TLV2541CDGK
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV2541CDGK.pdf
- Description:
- IC ADC 12BIT SAR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,367
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV2541CDGK from Texas Instruments is a 12-bit, single-channel, successive-approximation analog-to-digital converter (SAR ADC) with SPI/DSP-compatible serial interface, rail-to-rail analog input (500 kHz bandwidth), built-in conversion clock (3.5 μs), and autopower-down mode. It operates from 2.7 V to 5.5 V and delivers up to 200 kSPS throughput in CS+FS mode at 5 V - ideal for portable data acquisition and battery-powered sensor interfaces.
For engineers reviewing the TLV2541CDGK datasheet, TLV2541CDGK pinout, TLV2541CDGK application, or TLV2541CDGK equivalent, this page provides verified technical context, exact pin functions, real-world use cases, and validated alternative options - all aligned to the TLV2541CDGK (AGZ) ordering variant in 8-pin MSOP package with 0°C to 70°C temperature range.
Technical Context
The TLV2541CDGK implements a charge redistribution SAR architecture with internal oscillator-based conversion timing, eliminating external clock dependencies. Its control logic supports three interface modes: CS-only (SPI), FS-only (DSP frame sync), or CS+FS dual-signal coordination - with distinct SDO timing behavior per mode.
It features a single-ended analog input (AIN), external reference input (VREF), and 3-wire serial interface (CS/SCLK/SDO). Autopower-down reduces supply current to 2 μA (2.7 V) or 5 μA (5 V) between conversions, and deep power-down achieves 1 μA after ≥2 ms inactive time - enabling ultra-low average power in duty-cycled systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit SAR - delivers 4096 discrete output codes with monotonic transfer function and ±1 LSB max INL/DNL. |
| Max Throughput | 200 kSPS at 5 V with CS+FS control - enables real-time sampling of audio-band signals (e.g., 20 kHz sine) with oversampling capability. |
| Supply Range | 2.7 V to 5.5 V - supports direct interfacing with 3.3 V and 5 V microcontrollers without level-shifting. |
| Reference Input | VREF = 2 V to VDD - allows flexible full-scale adjustment; analog input range is 0 V to VREF, referenced to GND. |
| Power Consumption | 0.95 mA typical at 2.7 V during conversion; drops to 2 μA in autopower-down - extends battery life in intermittent-sampling applications. |
| Analog Bandwidth | 500 kHz (−1 dB) - supports accurate digitization of fast transients and moderate-frequency sensor outputs (e.g., accelerometers, pressure sensors). |
| Serial Interface | SPI-compatible 3-wire (CS/SCLK/SDO), MSB-first, unipolar straight binary - directly connects to most MCU SPI peripherals with CPOL=0/CPHA=1 configuration. |
Pinout & Package
TLV2541CDGK is housed in an 8-pin MSOP (DGK) package - 3.0 mm × 3.0 mm, 0.65 mm pitch, exposed thermal pad (not electrically connected). Pin numbering follows standard MSOP top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CS | Chip Select / Frame Sync Input | Active-low digital control: falling edge initiates sampling cycle; can serve as FS when tied to DSP frame sync - eliminates need for dedicated FS pin. |
| 2 - VREF | External Reference Voltage Input | Defines full-scale analog input range (0 V to VREF); impedance varies from 100 MΩ (static) to 20–25 kΩ (active) - requires low-noise, stable voltage source. |
| 3 - GND | Analog/Digital Ground Return | Common reference for all internal circuitry and analog inputs; must be low-impedance connection to system ground plane to maintain AC performance. |
| 4 - AIN | Analog Input Channel | Single-ended input with rail-to-rail capability and 500 kHz −1 dB bandwidth; input capacitance is 20–50 pF - requires proper source impedance matching (≤500 Ω recommended). |
| 5 - SDO | Serial Data Output | 3-state, MSB-first output; driven only after CS falling edge (or FS rising edge); high-impedance when CS high - enables multi-device SPI bus sharing. |
| 6 - VDD | Positive Supply Voltage | 2.7 V to 5.5 V power input; requires local 1-μF + 0.1-μF decoupling near pin to suppress switching noise and ensure stable conversion accuracy. |
| 7 - FS | DSP Frame Sync Input | Used only by TLV2541; rising edge triggers SDO output when CS is held low - synchronizes conversion start with DSP serial port framing. |
| 8 - SCLK | Serial Clock Input | Host-provided clock (100 kHz–20 MHz); falling edge samples SDO data; timing setup/hold constraints apply (e.g., 70 ns tsu at 2.7 V). |
Key Features
| Feature | Design Value |
|---|---|
| Built-in conversion clock | Internal oscillator enables fixed 3.5 μs conversion time - removes dependency on external clock source and simplifies PCB layout. |
| Rail-to-rail analog input | Supports 0 V to VREF input range with 500 kHz bandwidth - accommodates full-scale signals from op-amp buffers or direct sensor outputs without attenuation. |
| Autopower-down mode | Reduces ICC to 2 μA (2.7 V) within 0.5 μs after conversion - cuts average power in burst-mode sampling (e.g., 100 ms interval yields ~0.1 μA avg). |
| SPI/DSP serial compatibility | Three configurable control modes (CS-only, FS-only, CS+FS) - interoperates with both microcontroller SPI peripherals and TMS320-series DSP serial ports. |
| Low supply current | 0.95 mA typical at 2.7 V - enables operation from coin-cell batteries or energy-harvesting sources in low-duty-cycle monitoring systems. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
Use Scenario: Battery-powered ECG front-end digitizing lead-II differential signal conditioned by instrumentation amplifier. IC Role / Device Role / Timing Role: Single-ended 12-bit ADC capturing analog bio-potential waveforms at 100–200 kSPS with precise timing via CS-triggered sampling. Use Value: Autopower-down reduces average current to <1 μA between heartbeat intervals, extending CR2032 battery life beyond 1 year. |
Use Scenario: PLC analog input module acquiring 4–20 mA loop signals from pressure/temperature transmitters. IC Role / Device Role / Timing Role: High-accuracy ADC with ±1 LSB linearity and 72 dB SINAD at 20 kHz - ensures resolution better than 0.025% of full scale. Use Value: Rail-to-rail input and 2.7–5.5 V supply range allow direct interface with industrial op-amps and 3.3 V/5 V controller domains. |
| Automotive Cabin Environment Sensing | Smart Energy Metering |
Use Scenario: In-cabin air quality monitor measuring CO₂, VOC, and humidity via analog-output NDIR and electrochemical sensors. IC Role / Device Role / Timing Role: Low-power ADC performing periodic 12-bit conversions triggered by microcontroller wake-up events. Use Value: Deep autopower-down (1 μA) during 1-second sleep intervals minimizes quiescent load on vehicle's always-on 12 V supply. |
Use Scenario: Residential smart meter digitizing voltage/current transformer outputs for RMS calculation and harmonic analysis. IC Role / Device Role / Timing Role: 200 kSPS capable ADC supporting oversampled 50/60 Hz fundamental and up to 5th harmonic (300 Hz). Use Value: 85 dB SFDR and 72 dB SINAD at 20 kHz enable clean spectral separation of harmonics without external anti-alias filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-pin SOIC only; no FS pin; 200 kSPS at 5 V but requires external clock; higher 1.8 mA operating current at 5 V. | Lacks DSP frame-sync support and autopower-down - less suitable for low-power or TMS320-based designs. | Prefer TLV2541CDGK when MSOP footprint, integrated clock, or deep power-down (<2 μA) are required. |
| MCP3201-I/P | 8-pin PDIP/SOIC; SPI-only (no FS); 100 kSPS max; 2.7–5.5 V supply; 350 μA operating current at 5 V. | No autopower-down; lower throughput limits oversampling capability for noise reduction. | Choose TLV2541CDGK for higher speed (200 kSPS), lower active/idle current, and DSP interface flexibility. |
Compared with ADS7822U and MCP3201-I/P, TLV2541CDGK offers unique integration of built-in oscillator, dual-control interface (CS/FS), and sub-μA deep power-down - making it optimal for space-constrained, battery-sensitive, or DSP-coupled 12-bit data acquisition.
Availability
TLV2541CDGK is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, automotive cabin environment sensing, and smart energy metering requiring stable component supply and long-term production continuity.
Supply support for TLV2541CDGK 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 power management technologies - with decades of expertise in precision data converters and industrial-grade IC design.
The TLV2541CDGK belongs to TI's TLV254x family of low-power, 12-bit SAR ADCs designed specifically for battery-operated instrumentation, portable test equipment, and embedded systems where size, power, and serial interface simplicity are critical.
FAQ
What is the maximum sample rate achievable with TLV2541CDGK?
The TLV2541CDGK achieves up to 200 kSPS when operated at 5 V with CS+FS control mode and 20 MHz SCLK. At 2.7 V, maximum throughput drops to 175 kSPS in CS-only mode. The internal conversion clock fixes conversion time at 3.5 μs, so actual throughput depends on SCLK frequency, interface mode, and overhead cycles - confirmed in Table 1 of SLAS245E.
Does TLV2541CDGK support pseudo-differential input?
No, TLV2541CDGK does not support pseudo-differential input. It is the single-channel, single-ended variant of the TLV254x family. Pseudo-differential operation is exclusive to TLV2545 (which uses pins 4 and 5 as AIN(+) and AIN(−)). TLV2541CDGK has only one analog input pin (AIN, pin 4) and requires external reference on VREF (pin 2).
How does autopower-down work in TLV2541CDGK?
In TLV2541CDGK, autopower-down activates automatically after conversion completion. Within 0.5 μs, supply current drops to 2 μA (2.7 V) or 5 μA (5 V). If inactive time exceeds 2 ms, deep power-down engages, reducing current to 1 μA. Wake-up occurs instantly on next CS falling edge or FS rising edge - no startup delay or calibration required.
Can TLV2541CDGK interface directly with a TMS320 DSP serial port?
Yes, TLV2541CDGK supports direct TMS320 DSP interface via its FS pin (pin 7). When CS is held low, the DSP's frame sync signal drives FS to initiate conversion and align SDO output with the DSP's serial frame boundary - eliminating software polling and ensuring deterministic timing. This mode is documented in Figure 3 and Section "Control via CS and FS".
What package type is used for TLV2541CDGK?
TLV2541CDGK uses the 8-pin MSOP (DGK) package: 3.0 mm × 3.0 mm body, 0.65 mm lead pitch, with exposed thermal pad (non-connected). This compact, surface-mount package is specified in the "AVAILABLE OPTIONS" table of SLAS245E and matches the ordering suffix "DGK" in the part number TLV2541CDGK (AGZ).
TLV2541CDGK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 12
- 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:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
TLV2541CDGK FAQ
1.How can I place an order for TLV2541CDGK through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2541CDGK 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 TLV2541CDGK reliable?
The price and inventory of TLV2541CDGK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2541CDGK is usually 5 days.
3.What payment methods are accepted for TLV2541CDGK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2541CDGK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2541CDGK?
TLV2541CDGK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2541CDGK 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 TLV2541CDGK?
For technical support, including TLV2541CDGK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2541CDGK requirements.
6.How does Aetrix verify that TLV2541CDGK is sourced from the original manufacturer or authorized distributors?
All TLV2541CDGK 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 TLV2541CDGK meets industry standards.
7.What is the process for return or replacement of TLV2541CDGK?
All TLV2541CDGK units undergo pre-shipment inspection (PSI). If there is an issue with TLV2541CDGK, 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 TLV2541CDGK part is unused and in its original packaging.
Return procedure for TLV2541CDGK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2541CDGK Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
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…
