September 2005
ADC088S022
8-Channel, 50 kSPS to 200 kSPS, 8-Bit A/D Converter
General Description
Features
n Eight input channels
The ADC088S022 is a low-power, eight-channel CMOS 8-bit
analog-to-digital converter specified for conversion through-
put rates of 50 kSPS to 200 kSPS. The converter is based on
a successive-approximation register architecture with an in-
ternal 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
50 kSPS to 200 kSPS
™
IRE , and many common DSP serial interfaces.
n DNL (VA = VD = 2.7V to 5.25V)
n INL (VA = VD = 2.7V to 5.25V)
n Power Consumption
— 3V Supply
0.2 LSB (max)
0.2 LSB (max)
The ADC088S022 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 0.9 mW and 5.5 mW, respectively. The power-
down feature reduces the power consumption to 0.03 µW
using a +3V supply and 0.15 µW using a +5V supply.
0.9 mW (typ)
5.5 mW (typ)
— 5V Supply
Applications
The ADC088S022 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
20166705
Ordering Information
Order Code
ADC088S022CIMT
ADC088S022CIMTX
ADC088S022EVAL
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
DS201667
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