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12-bit 4MS/s ADC

The S3ADS4M12BT22ULL is a compact and low power 12-bit SAR ADC IP with a sampling rate up to 4MS/s.

This 12-bit ADC features an outstanding dynamic performance that includes 63.6dB SNR, 76.0dB SFDR and 10.2-bit ENOB. It also features an outstanding static performance with < ±0.9 LSB DNL (no missing-codes) and < ±1.5 LSB INL.

特色

TSMC 22nm ULL Process
No Analog Options
0.8V Core Supply
1.7V to 3.6V I/O Supply
12-bit SAR ADC
Sampling Rate up to 4MS/s
Input Mux w/ 8 Single-Ended Inputs
1.2V External Reference with Internal Buffer
Input Range: 0V to 1.2V
Static Performance:

DNL < ± 0.9 LSB (no Missing-Codes)
INL < ± 1.5 LSB

Dynamic Performance:

76.0dB SFDR
63.6dB SNR
63.2dB SNDR
10.2-bit ENOB

Standby and Power-Down Modes
Ultra-Low Power Dissipation: 750uW
Compact Die Area: 0.05mm2
(post-shrink silicon area)

优势

For application flexibility, this IP includes a Reference Buffer to drive the SAR ADC capacitive DAC.
Considering a 4MS/s sampling rate, the ADC power dissipation is only 750uW, including the Reference Buffer.
A calibration algorithm enhances the ADC performance. During calibration, analog inputs are kept in high impedance, therefore relaxing the requirements for the block driving the ADC.
The S3ADS4M12BT22ULL can be cost-effectively ported across foundries and process nodes upon request.