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Carl M. Stanchak
2219 Monroe Place Colorado Springs, Colorado 80907 (719) 475-2682
Objective: Develop commercial analog integrated circuits.
Have developed analog integrated circuits for various applications
from audio/video to industrial control. These include opamps,
bandgaps, i2c interfaces, crystal and rc oscillators, temperature
sensing, low dropout voltage regulators, 16 bit analog to digital
converters and charge pump circuits. Low power CMOS design and
circuits at both low and high voltages have been designed. I have
designed in submicron technologies and have a good background in
device and semiconductor physics. Digital controllers and
asynchronous interfaces using VHDL coding were designed. I have
designed SRAM and EEPROM memories and EEPROM memory
latch cells for analog circuit trim/calibration.
Experience: NXP Corporation Tempe, AZ
Contractor – Analog Design Aug-Oct 2013
• Simulation of 180nm analog circuits in Cadence for new power
control circuits for USB applications.
AMD Corporation Boxborough, MA
Contractor – Analog Design Nov-Dec 2012
• HSPICE simulation of 30nm analog circuits for foundry
transfer. Report on any design changes to be made. This
contract duration was four weeks in the month of December.
MAXIM Integrated Products Colorado Springs, CO
Senior Member Technical Staff 2000 to 2011
• Audio Class A/B power amplifier. Video filter design and video
analog signal processing for machine vision.
• Designed and characterized 16bit successive approximation
• Designed controller for 32 channel DAC employing 32
scanned sample and hold circuits employing an internal SRAM
• Designed I2C interface circuits and various analog support
circuits for different programs (bandgap, oscillators, and low
dropout voltage regulators, temperature sensors)
• Digital synchronous/asynchronous design done at the gate
level or via VHDL coding
ATMEL Colorado Springs, CO
Principle Design Engineer 1995 to 2000
• Designed ATMEL’s 128KHz RFID analog front end and
embedded EEPROM for data store.
• Design various EEPROM circuits for ASIC group
• Developed low power (300na @ 10KHz) EEPROM with read
capability down to 0.9v for RFID application
• Designed a low power 32KHz crystal oscillator
• Characterized the ASIC EEPROM designsNCR
Colorado Springs, CO
Principle Design Engineer 1988 to 1995
• EEPROM design, Nonvolatile data latch design, SCSI,
Electrostatic pen system, etc.
EM Microelectronics Neuchatel, Switzerland
Senior Design Engineer 1986 to 1987
• Low voltage CMOS analog circuits down to one volt.
• Subthreshold circuit design, low power crystal oscillators,
automotive circuits, watch circuits
NCR Microelectronics Colorado Springs, CO
Senior Design Engineer 1980 to 1986
• Audio output stage circuits and DAC circuit for video
Education: Colorado State University Fort Collins, Colorado
Integrated Circuit Design
University of Illinois Champagne, Illinois
Solid State Physics
University of Wisconsin Madison, Wisconsin
Device Physics and Processing
Patents: 1.) USP 6028491 – Crystal Oscillator with Controlled Duty Cycle
2.) USP 5949274 – High Impedance Bias Circuit for AC Signal
Amplifiers (September 1999)
3.) USP 5168464 – Nonvolatile Differential Memory Device and
Method (August 1993)
4.) USP 4779029 – Digitally Compensated Multiplying Digital to
Analog Converter (October 1988)
Publications: Automatic Shutter Controller for Molecular Beam Epitaxy
Review of Scientific Instruments 52(3), March 1981
Schottky Barriers and Ohmic Contacts on N-type InP Based
Compound Semiconductors for Microwave FET’s
IEEE Tran. on Electron Devices, Vol ED-28, January 1981
References: Timothy Derosier firstname.lastname@example.org
Zhi-Yuan Zou email@example.com
Strengths: Analog design at the transistor level for high frequency, low/high
voltage and low power according to the capabilities of the technology.
ADC and DAC design.
Opamps and support circuits (oscillators, bandgap and current
Switched circuits such as offset cancellation circuits.
Feedback as internal compensation and compensation for external
General feedback as in control system design.
Digital design for sequencing and controlling analog blocks based on
Synchronization to external inputs and clocks.
EEPROM and SRAM design.
Low dropout regulators.
Simulation to reveal the limitations of a circuit with respect to
Part Some history for Carl Stanchak at Maxim Int Prod
MAX1169 16 bit successive approximation adc – also: i2c interface, vhdl for
adc control, reference buffer design
MAX1062 14 bit successive approximation adc
MAX5621 16bit dac with 16 channels of sample and hold – also: sample-hold
update scan controller and SRAM for programmed data store including power-on
MAX7450 Video buffer delivering a standard video output level given
nonstandard video in – sync tip level and entire video scaled to standard sync tip
MAXQ20 Micro controller using eeprom – developed voltage regulator for
eeeprom power, diode based temperature sensor employing on chip adc,
design/layout of entire padring for ESD as a block to support the core
MAX1365 3.5 digit panel meter – designed digital interface registers to control
4-20ma output interface and voltage regulator employing external depletion
device allowing operation from 7 to 30v (as in automotive applications)
MAX1329 Data acquisition system – designed timebase with external output
+/- 1% variation over voltage and temperature
MAX98309 Class A/B 1.4w audio amplifier in small package (1mm x 1mm),
differential output with low offset and low click/pop noise performance and
adjustable common mode output level
MAX9591 14 channel gamma ref buffer for lcd displays – also precision
voltage trip circuit at low power (1ua standby) that delivers a 1ms start-up pulse –
also a voltage doubler based bridge circuit to connect a main set of i2c pins to an
additional set of slave i2c pins
Embedded LDO block delivering 1.8v for 0.18um circuits found on
various audio parts (0.18um technology has a 2.0v abs max limit)
MAX9650 Video buffer opamp – worked as a customer interface for using this
circuit with various capacitive loading situations – evaluated overshoot and