1 Features

1• 5962R07227

– Total Ionizing Dose 100 krad(Si)

– Single Event Latch-Up Immune 120 MeVcm2/

mg

– Single Event Functional Interrupt Immune 120

MeV-cm2/mg

(See Radiation Report)

• Eight Input Channels

• Variable Power Management

• Independent Analog and Digital Supplies

• SPI™/QSPI™/MICROWIRE™/DSP Compatible

• Packaged in 16-Lead Ceramic SOIC

• Key Specifications

– Conversion Rate: 50 kSPS to 1 MSPS

– DNL (VA = VD = 5 V): +1.5 / −0.9 LSB

(Maximum)

– INL (VA = VD = 5 V): +1.4 / −1.25 LSB

(Maximum)

– Power Consumption

– 3-V Supply: 2.3 mW (Typical)

– 5-V Supply: 10.7 mW (Typical)

2 Applications

• Satellites

– Attitude and Orbit Control

– Precision Sensors

– Motor Control

• High Temperature

• Medical Systems

• Accelerators

3 Description

The ADC128S102 device is a low-power, eightchannel

CMOS 12-bit analog-to-digital converter

specified for conversion throughput rates of 50 kSPS

to 1 MSPS. The converter is based on a successiveapproximation

register architecture with an internal

track-and-hold circuit. The device can be configured

to accept up to eight input signals at inputs IN0

through IN7.

The output serial data is straight binary and is

compatible with several standards, such as SPI,

QSPI, MICROWIRE, and many common DSP serial

interfaces.

The ADC128S102 may be operated with independent

analog and digital supplies. The analog supply (VA)

can range from 2.7 V to 5.25 V, and the digital supply

(VD) can range from 2.7 V to VA. Normal power

consumption using a 3-V or 5-V supply is 2.3 mW

and 10.7 mW, respectively. The power-down feature

reduces the power consumption to 0.06 μW using a

3-V supply and 0.25 μW using a 5-V supply.