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TLC3545

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14-Bit 200KSPS ADC Serial Out, Auto PWRDN, Pseudo Differential Input

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Data sheet

TLC3545

ACTIVE
Data sheet Order now

Product details

Resolution (Bps) 14 Number of input channels 1 Interface type SPI Architecture SAR Input type Pseudo-Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 17 Analog supply (min) (V) 4.5 Analog supply (max) (V) 5.5 SNR (dB) 82 Digital supply (min) (V) 4.5 Digital supply (max) (V) 5.5
Resolution (Bps) 14 Number of input channels 1 Interface type SPI Architecture SAR Input type Pseudo-Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 17 Analog supply (min) (V) 4.5 Analog supply (max) (V) 5.5 SNR (dB) 82 Digital supply (min) (V) 4.5 Digital supply (max) (V) 5.5
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • 200-KSPS Sampling Rate
  • Built-In Conversion Clock
  • INL: ±1 LSB Max
    DNL: ±1 LSB Max
  • SINAD = 81.5 dB, SFDR = 95 dB
    THD = 94 dB at 15 kHz fin, 200 KSPS
  • SPI/DSP-Compatible Serial Interfaces With SCLK Input up to 15 MHz
  • Single 5-V Supply
  • Rail-to-Rail Analog Input With 500 kHz BW
  • Two Input Options Available:
    • TLC3541 – Single Channel Input
    • TLC3545 – Single Channel, Pseudo-Differential Input
  • (TLC3541) Optimized DSP Interface – Requires FS Input Only
  • Low Power With Auto-Power Down
    • Operating Current: 3.5 mA
    • Auto-Powerdown Current: 5 uA
  • Pin Compatible 12-/14-/16-Bit Family in 8-Pin SOIC and MSOP Packages
  • APPLICATIONS
    • ATE System
    • Industrial Process Control
    • Measurement
    • Motor Control
  • 200-KSPS Sampling Rate
  • Built-In Conversion Clock
  • INL: ±1 LSB Max
    DNL: ±1 LSB Max
  • SINAD = 81.5 dB, SFDR = 95 dB
    THD = 94 dB at 15 kHz fin, 200 KSPS
  • SPI/DSP-Compatible Serial Interfaces With SCLK Input up to 15 MHz
  • Single 5-V Supply
  • Rail-to-Rail Analog Input With 500 kHz BW
  • Two Input Options Available:
    • TLC3541 – Single Channel Input
    • TLC3545 – Single Channel, Pseudo-Differential Input
  • (TLC3541) Optimized DSP Interface – Requires FS Input Only
  • Low Power With Auto-Power Down
    • Operating Current: 3.5 mA
    • Auto-Powerdown Current: 5 uA
  • Pin Compatible 12-/14-/16-Bit Family in 8-Pin SOIC and MSOP Packages
  • APPLICATIONS
    • ATE System
    • Industrial Process Control
    • Measurement
    • Motor Control

The TLC3541 and TLC3545 are a family of high performance, 14-bit, low power, miniature CMOS analog-to-digital converters (ADCs). These devices operate from a single 5-V supply. Devices are available with single, dual, or single pseudo-differential inputs. All of these devices have a chip select (CS)\, serial clock (SCLK), and serial data output (SDO) that provides a direct 3-wire interface to the serial port of most popular host microprocessors (SPI interface). When interfaced with a DSP, a frame sync signal (FS) is used to indicate the start of a serial data frame on either pin 1 (CS)\ or pin 7 (FS) for the TLC3541. The TLC3545 ADC connects to the DSP via pin 1 only (CS)\.

The TLC3541 and TLC3545 are designed to operate with low power consumption. The power saving feature is further enhanced with an auto-power down mode. This product family features a high-speed serial link to modern host processors with an external SCLK up to 15 MHz. Both families use a built-in oscillator as the conversion clock, providing a 2.67 us maximum conversion time.

The TLC3541 and TLC3545 are a family of high performance, 14-bit, low power, miniature CMOS analog-to-digital converters (ADCs). These devices operate from a single 5-V supply. Devices are available with single, dual, or single pseudo-differential inputs. All of these devices have a chip select (CS)\, serial clock (SCLK), and serial data output (SDO) that provides a direct 3-wire interface to the serial port of most popular host microprocessors (SPI interface). When interfaced with a DSP, a frame sync signal (FS) is used to indicate the start of a serial data frame on either pin 1 (CS)\ or pin 7 (FS) for the TLC3541. The TLC3545 ADC connects to the DSP via pin 1 only (CS)\.

The TLC3541 and TLC3545 are designed to operate with low power consumption. The power saving feature is further enhanced with an auto-power down mode. This product family features a high-speed serial link to modern host processors with an external SCLK up to 15 MHz. Both families use a built-in oscillator as the conversion clock, providing a 2.67 us maximum conversion time.
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Technical documentation

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Type Title Date
* Data sheet 5-V, Low Power, 14-Bit, 200 KSPS, Serial ADC with Auto-Power Down datasheet 23 May 2001
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
Technical article Leverage coherent sampling and FFT windows when evaluating SAR ADCs (Part 1) 13 Mar 2015
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 17 Mar 2011

Design & development

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Evaluation board

5-6KINTERFACE — 5-6K Interface Evaluation Module

The interface board consists of two signal conditioning sites, two serial EVM sites, and a parallel EVM site. Regardless of the interface type, all EVMs compatible with the 5-6K Interface Board have a standard analog interface and standard power connector. Three position screw terminals J1 and J2 (...)

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Simulation model

TLC3545 IBIS Model

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Calculation tool

ADC-INPUT-CALC — Analog-to-digital converter (ADC) input driver design tool supporting multiple input types

ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and (...)
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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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SOIC (D) 8 View options
VSSOP (DGK) 8 View options

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