A monolithic CMOS 16 channel, 12 bit, 10 microsecond analog-to-digital converter integrated circuit

Conference · Sun Aug 01 00:00:00 EDT 1993 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5869354

Milgrome, O B; Kleinfelder, S A ^[1]

---

1. Lawrence Berkeley Lab., CA (United States)

A monolithic CMOS 16 channel, 12 bit, 10 microsecond analog-to-digital converter has been designed and tested. The circuit converts 16 channels in parallel via a single slope ramp and Gray code counter algorithm. When biased for 10.0 us conversions of a 2 V input range into 4,050 voltage bins, and ohmically connected to a computer, initial testing shows typical performance is a noise level of 0.3 bis rms, integral non-linearity of 4 bins, adjacent channel crosstalk effects less than 1 bin, and total chip power consumption of 110 mW. The chip contains 16 sample and hold circuits, out of range logic, a Gray-to-binary converter, and tri-state data outputs for microprocessor compatibility. The die size is 4.4 by 1.5 mm in a 2 polysilicon, 1.2 micron feature size CMOS process, and has 52 bonding pads. Off Chip requirements are a single power supply, a single high speed clock, a precision voltage reference, three biasing resistors, and supply filtering capacitors. This custom circuit has advantages of lower power dissipation and less PC board area than competitive approaches, and is designed for further monolithic system integration. Design details and test results are presented.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5869354
• Report Number(s): CONF-921005-; CODEN: IETNAE
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 40:4 part 1; Conference: Institute of Electrical and Electronic Engineers (IEEE) nuclear science symposium and medical imaging conference, Orlando, FL (United States), 25-31 Oct 1992; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ANALOG-TO-DIGITAL CONVERTERS
DESIGN
PERFORMANCE
ALGORITHMS
EXPERIMENTAL DATA
INTEGRATED CIRCUITS
PERFORMANCE TESTING
POWER LOSSES
DATA
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ENERGY LOSSES
EQUIPMENT
INFORMATION
LOSSES
MATHEMATICAL LOGIC
MICROELECTRONIC CIRCUITS
NUMERICAL DATA
TESTING
426000* - Engineering- Components
Electron Devices & Circuits- (1990-)