September 2005
ADC108S052
8-Channel, 200 kSPS to 500 kSPS, 10-Bit A/D Converter
General Description
Features
n Eight input channels
The ADC108S052 is a low-power, eight-channel CMOS 10-
bit analog-to-digital converter specified for conversion
throughput rates of 200 kSPS to 500 kSPS. The converter is
based on a successive-approximation register architecture
with an internal track-and-hold circuit. It can be configured to
accept up to eight input signals at inputs IN0 through IN7.
n Variable power management
n Independent analog and digital supplies
n SPI/QSPI/MICROWIRE/DSP compatible
n Packaged in 16-lead TSSOP
The output serial data is straight binary and is compatible
Key Specifications
™
™
with several standards, such as SPI , QSPI , MICROW-
n Conversion Rate
200 kSPS to 500 kSPS
™
IRE , and many common DSP serial interfaces.
n DNL (VA = VD = 2.7V to 5.0V)
n INL (VA = VD = 2.7V to 5.0V)
n Power Consumption
— 3V Supply
0.4 LSB (max)
0.4 LSB (max)
The ADC108S052 may be operated with independent ana-
log and digital supplies. The analog supply (VA) can range
from +2.7V to +5.25V, and the digital supply (VD) can range
from +2.7V to VA. Normal power consumption using a +3V or
+5V supply is 1.5 mW and 7.5 mW, respectively. The power-
down feature reduces the power consumption to 0.09 µW
using a +3V supply and 0.30 µW using a +5V supply.
1.5 mW (typ)
7.5 mW (typ)
— 5V Supply
Applications
The ADC108S052 is packaged in a 16-lead TSSOP pack-
age. Operation over the extended industrial temperature
range of −40˚C to +105˚C is guaranteed.
n Automotive Navigation
n Portable Systems
n Medical Instruments
n Mobile Communications
n Instrumentation and Control Systems
Connection Diagram
20164405
Ordering Information
Order Code
ADC108S052CIMT
ADC108S052CIMTX
ADC108S052EVAL
Temperature Range
−40˚C to +105˚C
−40˚C to +105˚C
Description
16-Lead TSSOP Package
16-Lead TSSOP Package, Tape & Reel
Evaluation Board
TRI-STATE® is a trademark of National Semiconductor Corporation.
™
MICROWIRE is a trademark of National Semiconductor Corporation.
™
™
QSPI and SPI are trademarks of Motorola, Inc.
© 2005 National Semiconductor Corporation
DS201644
www.national.com