National Semiconductor ADC14L020 Datasheet

The ADC14L020 is a low power monolithic CMOS analog-to-digital converter capable of converting analog input signals into 14-bit digital words at 20 MSPS. It provides excellent dynamic performance and a 150 MHz Full Power Bandwidth.


National Semiconductor ADC14L020 Datasheet - cover page
Brand
National Semiconductor
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
23
File format
PDF
File size
915 KB
Published
08 May, 2012
Updated
28 September, 2023
MD5 checksum
386A4798B7AD64A53D8330990724E48F

About this manual

The ADC14L020 is a monolithic CMOS A/D converter that delivers 14‑bit resolution at up to 20 MSPS while operating from a single +3.3 V supply. It features a differential pipeline architecture with on‑chip sample‑and‑hold, internal reference, and selectable output data formats (offset binary or two’s complement). Power consumption is 150 mW in normal mode and drops to 15 mW in power‑down mode.

Key specifications include a full‑power bandwidth of 150 MHz, DNL of ±0.5 LSB, SNR of 74 dB (typ) at 10 MHz, and a 32‑lead LQFP package. The device operates over an industrial temperature range of –40 °C to +85 °C and is suited for medical imaging, instrumentation, communications, and digital video applications.

What's inside

  • General Description
  • Key Specifications
  • Ordering Information
  • Pin Descriptions and Equivalent Circuits
  • Absolute Maximum Ratings
  • Converter Electrical Characteristics
  • DC and Logic Electrical Characteristics
  • AC Electrical Characteristics
  • Specification Definitions
  • Typical Performance Characteristics

Specifications

Resolution14 Bits
Sampling Rate20 MSPS
Power Consumption (typical)150 mW
Power Consumption (power‑down)15 mW
Full Power Bandwidth150 MHz
Supply Voltage+3.0 V to +3.6 V
Package32‑lead LQFP
Operating Temperature–40 °C to +85 °C
DNL (typ)±0.5 LSB
SNR (typ, 10 MHz)74 dB
SFDR (typ, 10 MHz)93 dB

Frequently asked questions

What supply voltage does the ADC14L020 require?

It operates from a single +3.3 V supply, with an allowed range of +3.0 V to +3.6 V.

How much power does the device consume in normal operation?

Typical power consumption is 150 mW at 20 MSPS.

What is the maximum clock frequency the ADC can handle?

The maximum clock frequency is 20 MHz (minimum guaranteed).

What package does the ADC14L020 use?

It is available in a 32‑lead LQFP package.

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