National Semiconductor ADC161S626 Datasheet

The ADC161S626 is a 16-bit successive-approximation register (SAR) Analog-to-Digital converter (ADC) with a maximum sampling rate of 250 kSPS. The ADC161S626 has a minimum signal span accuracy of ± 0.003% over the temperature range of −40°C to +85°C. The converter features a differential analog input with an excellent common-mode signal rejection ratio of 85 dB, making the ADC161S626 suitable for noisy environments. The ADC161S626 operates with a single analog supply (VA) and a separate digital input/output (VIO) supply. VA can range from +4.5V to +5.5V and VIO can range from +2.7V to +5.5V. This allows a system designer to maximize performance and minimize power consumption by operating the analog portion of the ADC at a VA of +5V while interfacing with a +3.3V controller. The serial data output is binary 2's complement and is SPI™ compatible. The performance of the ADC161S626 is guaranteed over temperature at clock rates of 1 MHz to 5 MHz and reference voltages of +2.5V to +5.5V. The ADC161S626 is available in a small 10-lead MSOP package. The high accuracy, differential input, low power consumption, and small size make the ADC161S626 ideal for direct connection to bridge sensors and transducers in battery operated systems or remote data acquisition applications.


National Semiconductor ADC161S626 Datasheet - cover page
Brand
National Semiconductor
Category
Data Converters
Document type
Datasheet
Language
English
Pages
22
File format
PDF
File size
555 KB
Published
04 May, 2012
Updated
29 September, 2023
MD5 checksum
671FE08BAEA296DAA4398ACB6E9C39DB

About this manual

The ADC161S626 is a 16‑bit successive‑approximation ADC offering a sampling rate from 50 kSPS up to 250 kSPS. It features a true differential input, low power consumption, and a small 10‑lead MSOP package, making it suitable for bridge‑sensor and transducer interfaces in battery‑operated or remote data‑acquisition systems.

The datasheet provides ordering information, pin‑out diagrams, electrical characteristics, timing specifications, and typical performance graphs. Key parameters such as resolution, signal‑to‑noise ratio, total harmonic distortion, and common‑mode rejection are documented for design verification.

What's inside

  • General Description
  • Key Specifications
  • Ordering Information
  • Pin Descriptions
  • Electrical Characteristics
  • Timing Specifications
  • Specification Definitions
  • Typical Performance Characteristics
  • Notes

Specifications

Resolution16 bits
Sampling Rate50 to 250 kSPS
Operating Temperature Range-40°C to +85°C
Signal‑to‑Noise Ratio93.2 dBc
Total Harmonic Distortion-104 dBc
Package10‑lead MSOP

Frequently asked questions

What is the maximum sampling rate of the ADC161S626?

The ADC161S626 can sample up to 250 kSPS.

What temperature range can the ADC161S626 operate in?

It operates from –40 °C to +85 °C.

Does the ADC161S626 have any missing codes?

No, it provides 16‑bit resolution with no missing codes.

Download PDF (555 KB)

More National Semiconductor Manuals


View all National Semiconductor manuals →