1 Features

? Radiation tolerant:

– Single-event latch-up (SEL) immune up to

LET = 43 MeV-cm2/mg at 125°C

– Single-event functional interrupt (SEFI)

characterized up to LET = 43 MeV-cm2/mg

– Total ionizing dose (TID) RLAT/RHA

characterized up to 30 krad(Si)

? Space-enhanced plastic (space EP):

– Meets ASTM E595 outgassing specification

– Vendor item drawing (VID) V62/22608

– Military temperature range: –55°C to 125°C

– One fabrication, assembly, and test site

– Gold bond wire, NiPdAu lead finish

– Wafer lot traceability

– Extended product life cycle

– Extended product change notification

? Wide supply range:

– VA: 2.7 V to 5.25 V

– VD: 2.7 V to VA

? SPI?-, QSPI?-, MICROWIRE?-, DSP-compatible

? Conversion rate: 50 kSPS to 1 MSPS

? DNL: +1.8 LSB to ?0.99 LSB (maximum)

? INL: +1.6 to ?1.6 LSB (maximum)

? Power consumption:

– 3-V supply: 2.7 mW (typical)

– 5-V supply: 11 mW (typical)

2 Applications

? Satellite electrical power system (EPS)

? Command and data handling (C&DH)

? Optical imaging payload

? Voltage, current, and temperature monitoring

? Accelerators

3 Description

The ADC128S102-SEP is a low-power, eight-channel,

CMOS, 12-bit analog-to-digital converter (ADC)

specified for conversion throughput rates of 50 kSPS

to 1 MSPS. The converter is based on a successiveapproximation

register (SAR) 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

compatible with several standards, such as SPI,

QSPI, MICROWIRE, and many common DSP serial

interfaces.

The ADC128S102-SEP can 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 16.5 μW

using a 3-V supply and 30 μW using a 5-V supply.