ADC088S022 Datasheet, PDF (1/17 Pages) National Semiconductor (TI) – 8-Channel, 50 kSPS to 200 kSPS, 8-Bit A/D Converter

September 2005
ADC088S022
8-Channel, 50 kSPS to 200 kSPS, 8-Bit A/D Converter
General Description
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.
The output serial data is straight binary and is compatible
with several standards, such as SPI™, QSPI™, MICROW-
IRE™, and many common DSP serial interfaces.
The ADC088S022 may be operated with independent ana-
log and digital supplies. The analog supply (V_A) can range
from +2.7V to +5.25V, and the digital supply (V_D) can range
from +2.7V to V_A. 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.
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.
Features
n Eight input channels
n Variable power management
n Independent analog and digital supplies
n SPI/QSPI/MICROWIRE/DSP compatible
n Packaged in 16-lead TSSOP
Key Specifications
n Conversion Rate
n DNL (V_A = V_D = 2.7V to 5.25V)
n INL (V_A = V_D = 2.7V to 5.25V)
n Power Consumption
— 3V Supply
— 5V Supply
50 kSPS to 200 kSPS
±0.2 LSB (max)
±0.2 LSB (max)
0.9 mW (typ)
5.5 mW (typ)
Applications
n Automotive Navigation
n Portable Systems
n Medical Instruments
n Mobile Communications
n Instrumentation and Control Systems
Connection Diagram
Ordering Information
Order Code
ADC088S022CIMT
ADC088S022CIMTX
ADC088S022EVAL
Temperature Range
−40˚C to +105˚C
−40˚C to +105˚C
20166705
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
www.national.com