Vervesemi

India

Vervesemi offers Ultra-high precision to GHz range data converters for Energy, 5G, ADAS, Medical, consumer, and Smart Power market. These Data converter IPs are silicon qualified and available in various technology flavor such as 28nm, 40nm, 180nm & 8nm FINFET across TSMC, UMC, SMIC & Samsung foundries.

 

Vervesemi Analog Front End ASICs are for seismic, medical, energy metering and various high end sensors applications. The high performance and ultra-low power make them suitable for multichannel high precision applications.

Prior to Vervesemi, the team accumulated 2 decades of semiconductors design experience in developing Data converters for various market segments and producing 50+ IPs on 30 products per year. In that process, the team has achieved vast silicon maturity experience on 20+ technology nodes with 300+ matured products having these IPs. The teams’ experience in the past had been on 0.25u to 28nm technology node including high voltage and SOI technology.

IP Cores

GHz ADC and DAC for 5G, Radar applications

High speed ADC: 10-14b accuracy ranging from few MHz to GHz & High-speed DAC: 10-14b accuracy ranging from few MHz to GHz

28nm ADC

14b 3.2Gsps ADC

Features

  • 14-bit, 75Mhz Analog Bandwidth Analog-to- Digital Converter
  • SNDR: 59dB in 75Mhz Band
  • SFDR: 75dB in 75Mhz Band

 

28nm DAC

12b 5Gsps DAC

Features

  • Programmable 10mA Differential Current source
  • In built mismatch, Self-Calibration for excellent linearity
    • Built-in Die quality indicator for production
    • Dynamic Performance: 69dB SFDR @110MHz

8nm ADC

1) 12b 1Gsps ADC

2) 12b 1.75Gsps ADC

3) 12b 4Gsps ADC

Features

  • Dual channel 12-bit Analog-to-Digital Converter
  • Differential analog input
  • Self-calibrating ADC (offset, gain and skew errors)
  • Background calibration algorithms to track
  • Input Buffer @ 1.8 V Supply

8nm DAC

  • 12b 1Gsps DAC

Features

  • 12b Resolution, Fs = 1Gsps
  • Programmable 20mA Differential Current source
  • In built mismatch, Self-Calibration for excellent linearity
  • Dynamic [email protected]:
    • 65dB SFDR @110MHz
    • 71dB SFDR @ 20MHz
    • IMD3 >-65dB @20MHz±1MHz

 

  • 14b 4Gsps DAC

Features

  • 14b Resolution, Fs = 4Gsps
  • Programmable 20mA Differential Current source
  • In built mismatch, Self-Calibration for excellent linearity
  • Dynamic [email protected]
    • 75dB SFDR @ 80MHz
    • 72dB SFDR @200MHz
    • 55dB SFDR @400MHz
    • 52dB SFDR @800MHz
    • IMD3> -75dB @80MHz±1MHz o 55dB SFDR @400MHz

 

Matured/available in Technology node 28nm, 8nm

24b ADC and AFE for sensor, medical, Industrial process control, seismic & metering business

  • Analog Front End with 32-bit 4ksps ADC for seismic business
    • High resolution:
    • Low noise PGA:
    • Programmable gain (1,2 4,8,16,32,64)
    • Programmable output data rate:
    • High CMRR: -110 dB
    • High accuracy, THD: -122dB
  • 24-bit 14Ksps ultra-low power delta sigma Analog-to-Digital Converter for sensor, weighing scale applications
    • Programmable output data rate:
    • High CMRR: -110 dB
    • High accuracy, THD: -122dB
    • Offset and gain calibration
  • 24-bit 19Ksps ultra-low power delta sigma Analog-to-Digital Converter for Industrial process control
    • PGA Programmed to have a gain of 1, 2, 4, 8, 16, 32, 64, or 128
    • AFE by combining with Vervesemi 24b ADC and work up-to 19,200 SPS
    • In High power mode
    • With SINC4 filter, 2.4KHz BW

ENOB

ENOB= [email protected] (Gain=1)

  • MID power mode
  • With SINC4 filter, 2.4KHz BW

ENOB= [email protected] (Gain=1)

  • LOW power mode
  • With SINC4 filter, 1.2KHz BW

 

ENOB= [email protected]Ksps (Gain=1)

  • 24-bit 128Ksps ultra-low power delta sigma Analog-to-Digital Converter for Metering applications
    • High resolution:
    • Programmable output data rate:
    • High CMRR: -100 dB
    • High accuracy, THD: -102dB
    • Offset and gain calibration

Matured in Technology node 180nm

12b 16b ADC, AFE for embedded microcontroller, precision motor control applications

  • 12-bit 5Msps ultra-low power Analog-to-Digital Converter
    • 12-bit SAR ADC up-to 5MS/s conversion rate.
    • The ADC power scales linearly with clock speed.
    • Wide supply range 3.6V down-to1.6V Analog supply supported
    • Zero DC power
    • Single-ended/ Differential input
    • Up-to 4-input channels
    • Dynamic performance: ENOB 11b, SFDR 71dB, SNR:68 dB
  • 16-bit 5Msps ultra-low power Analog-to-Digital Converter
    • Up-to 5MS/s conversion rate Maximum 230MHz Clock
    • Wide supply range 3.6V down-to1.6V Analog supply supported
    • Linearly-scalable Power with sampling frequency
    • Single-ended/ Differential inputs
    • 4:1 Analog Input Multiplexer
    • Superior dynamic performance: SNDR 82dB, THD: -92 dB, ENOB:13.5bit
    • Offset, Gain and Linearity Calibration Engine

Matured in Technology node 40nm

Mic Bias, 18b Audio ADC and 24b Audio DAC for audio and ANC applications, ADC and DAC for WIFI, Bluetooth, DOSCIS, STB applications

  • 18 bit continuous time sigma delta Analog-to-Digital Converter
  • 24 bit audio Digital-to-Analog Converter
  • Low noise Microphone Bias
  • 12b 640Msps ADC and DAC for WIFI, BLE, DOCSIS, STB applications

Matured/available in Technology node 28/55nm

Precision reference, RC oscillator, crystal oscillator, charge pump, LDO, Temperature sensor, Bandgap, power on reset, Charge pump, Programmable gain amplifier

  • Precision reference 2ppm, 6ppm, 15ppm
  • RC and crystal oscillators for 32KHz to few MHz
  • Capless LDO of few 10mA to few 100mA
  • Temperature sensor of 1 degree accuracy
  • Trimmable Bandgap references
  • Regulated Inverting charge pump
  • Low noise PGA of various gain

Matured/available in various Technology nodes

High valued ICs

  • Analog front end IC for Seismic, energy exploration application having 32-bit High resolution Ultra-low power AFE for precision applications having 127dB SNR
  • Sensor, weight machine, medical IC having24b Sigma delta with low drift reference 14Ksps ADC
  • Industrial process control, sensor application IC with PGA and reference multichannel 24b Sigma delta ADC including PGA up to 19.2Ksps
  • Energy metering IC having Multiple channel AFE having 24b 128Ksps Sigma delta ADC.

Matured in 180nm Technology