Advanced Sensor Integrations


ASI specialize in ultra-low-power analog and mixed-signal semiconductor technologies. Design engineers have 30+ years ultra-low-power analog IC design experience for mass production.


We develop IC and IP for medical, consumer, battery management and automotive markets. End products include: Medical implantable devices, Neuro stimulators, Pacemakers, Implantable monitors, WiFi chipset, Battery Management System BMS AFE, IoT devices, Smart device, EV motor controller. An estimated ~1 billion products are using our IC and/or IP. Specialize in ultra-low-power analog semiconductor technologies:


  • Data Converters SAR ADC, Sigma Delta ADC, Flash-ADC, Pipeline-ADC, DAC
  • Battery Management System, Battery Monitor & Balancing AFE IC,
  • Fuel Gauge, Li-Charger
  • Digital Isolators, Optical Isolators, Galvanic isolators, Voltage/Current Sensing Isolators
  • Power Management – Low-Iq DCDC Buck/Boost, Low-Iq LDO, AC/DC
  • Timing and Clocks – PLL, Low-Iq Oscillator, Low-Iq RTC
  • Sensors – Capacitive, MEMS, Temperature, Pressure, Radiation, Accelerometer
  • Audio – Codec, Class-G amp, Mic amp, LVDS, S-C Filters


Analog ASIC Design and Turnkey Solution

Low Power and Precision Analog / Mixed-signal custom IC development. Example custom IC products:


Digital Isolator 2.5KV 100Mbps

Digital Isolator 5KV 100Mbps

16bit ADC + Digital Isolator 5KV 50mV

16bit ADC + Digital Isolator 5KV 250mV

10bit 10KS/s SAR ADC

10bit 500KS/s SAR ADC

10bit 60MS/s Pipeline ADC

14bit 1MS/s SAR ADC

14bit 2KS/s Sigma Delta ADC

16bit 5MS/s SAR

18bit 5MS/s SAR

18bit 50KS/s Sigma Delta ADC

20bit 20KS/s Sigma Delta ADC

24bit Sigma Delta ADC

6bit 30MS/s Log scale ADC

DCDC step down converter

DCDC step up converter

Operational Amplifiers Low Power 600nA 100K

Operational Amplifiers Low Power 600nA 14K

Real time clock crystal 32KHz

Capacitive touch sensor 8 channels

Capacitive touch sensor 12 channels

DCDC Low Power 400mA output

DCDC Low Power 600mA output

Operational Amplifiers General purpose

Operational Amplifiers General purpose

LDO 200mA

Operational Amplifiers Low Offset 10uV 1.5MHz

Operational Amplifiers Low Offset 10uV 1.5MHz

Low Power Analog IP Design

Low Power and Precision Analog / Mixed-signal custom IP Block. Example custom IP blocks:


12bit 1MS/s SAR ADC

12bit 5MS/s SAR ADC

13bit 10KS/s Serial ADC

8bit 10KS/s SAR

8bit 40MS/s 2V Pipeline

8bit 40MS/s 1V Pipeline

8bit 80MS/s 2V Pipeline

8bit 80MS/s 3V Pipeline

10bit 120MS/s DAC

10bit 60MS/s DAC

12bit 390MS/s DAC

6bit 5MS/s DAC

8bit 2MS/s DAC

8bit 2MS/s DAC

8bit 80MS/s DAC

Fuel Gauge Coulomb counter

Audio headphone amplifier

Video High Pass filter

Heart rate sensor

Video Low Pass filter

Li Battery Charger

Voltage and Current Reference

Analog Filters


Interface (LVDS, I2C)

MEMS accelerometer AFE

MEMS capacitive AFE

MEMS resistive AFE

Oscillators On-chip 1MHz

Oscillators crystal 32KHz

Oscillators crystal 32KHz ultra low power

Oscillators crystal 40MHz

Phase Locked Loop 20MHz Low Power

Phase Locked Loop 480MHz Low Power

Power On Reset (POR)

Energy Harvesting

Temperature sensor

Power Management BOOST

Buck converter 3.3V to 1.2V

LDO low noise

Charge pump

IP Cores

High Speed SAR ADC

  • Supply voltage: 5.0V
  • Resolution: 18-bit
  • Conversion rate: 5MS/s
  • Architecture: Successive Approximation
  • Input range: ±096V
  • INL and DNL: <2LSB and <2LSB
  • Latency: ~ 200ns
  • Normal and power-down control
  • Power-down mode (consumption <0.1uA)
  • Current consumption: NDA required
  • Total core area: NDA required
  • Temperature: -40C to 85C
  • Process technology: 180nm CMOS with MoM

Low Power SAR ADC

  • Supply voltage: 1.8V
  • Resolution: 14-bit
  • Operating current consumption: 550nA @ 1.6KS/s
  • 135uA @ 2MS/s
  • Power-down consumption <50nA
  • Conversion rate: 1.6KS/s to 2MSs
  • Input range: 1.8V
  • Architecture: Low-Power SAR
  • INL: < ±4LSB, DNL: < ±1LSB
  • Temperature: -40C to 85C
  • Process technology: 55nm CMOS

Low Power Fuel Gauge Colomb Counter

  • Input range: ±70mV
  • Current measurement range: ±7A (with 10mΩ sense resistor)
  • Resolution: 13-bit
  • Offset before calibration: < ±200uV
  • Operating current consumption: 2uA
  • Power-down consumption: <100nA
  • INL: < ±2LSB
  • DNL: < ±2LSB
  • Integration time: 1.0 second
  • Temperature: -40C to 85C
  • Process technology: 130/180nm CMOS

Low Power 32KHz Crystal Oscillator and RTC Oscillator

  • Supply voltage: 1.6V – 5.5V
  • Output frequency range: 32KHz – 32.768KHz
  • Current consumption: 80nA @ low VDD
  • Unique feedback control for fast startup
  • Output duty cycle: 50% approx.
  • Power-up/down control
  • Power-down mode (consumption <2nA)  
  • Temperature: -40C to 85C
  • Process technology: Please contact us for details

Battery Monitoring System BMS AFE


  • 14-cells, 16-cells, 18-cells, 20-cells
  • +/- 1.5mV ADC accuracy
  • Built-in redundancy path for voltage and temperature diagnostics
  • stackable with up to 32 BMS AFE
  • Highly accurate cell voltage measurements within 128 μs for all cell channels
  • Integrated post-ADC configurable digital low-pass filters
  • Supports bus bar connection and measurement
  • Supports internal cell balancing
  • Built-in balancing thermal management with automatic pause and resume control
  • Isolated differential daisy chain communication with optional ring architecture
  • SPI host interface/communication bridge device
  • Built-in SPI slave

Digital Isolator with/without Analog AFE

  • Robust isolation barrier:
  • >100-year projected lifetime at 1500 VRMS working voltage
  • Up to 5000 VRMS isolation rating
  • Up to 12.8 kV surge capability
  • ±100 kV/μs typical CMTI
  • Shunt-Resistor-Based Current Measurements:
  • ±200mV Input Voltage Ranges (±320mV Full Scale Range)
  • Manchester Coded or Uncoded Bitstream Options
  • Excellent DC Performance:
  • Offset Error: ±300 μV
  • Offset Drift: 1 μV/°C
  • Gain Error: ±1%
  • Gain Drift: ±60 ppm/°C
  • Transient Immunity: 100 kV/μs (typ)
  • 7000-VPEAK Reinforced Isolation per DIN V VDE V 0884-11 (VDE V 0884-11): 2017-01
  • 5000-VRMS Isolation for 1 Minute per UL1577
  • Temperature Range: –40°C to +125°C