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ADC088S052 Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer ADC088S052
Beschreibung 8-Bit A/D Converter
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 17 Seiten
ADC088S052 Datasheet, Funktion
September 2005
ADC088S052
8-Channel, 200 kSPS to 500 kSPS, 8-Bit A/D Converter
General Description
The ADC088S052 is a low-power, eight-channel CMOS 8-bit
analog-to-digital converter specified for conversion through-
put 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.
The output serial data is straight binary and is compatible
www.DataSheet4U.cwoimth several standards, such as SPI, QSPI, MICROW-
IRE, and many common DSP serial interfaces.
The ADC088S052 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 1.2 mW and 6.5 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 ADC088S052 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 (VA = VD = 2.7V to 5.0V)
n INL (VA = VD = 2.7V to 5.0V)
n Power Consumption
— 3V Supply
— 5V Supply
200 kSPS to 500 kSPS
±0.2 LSB (max)
±0.2 LSB (max)
1.2 mW (typ)
6.5 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
ADC088S052CIMT
ADC088S052CIMTX
ADC088S052EVAL
Temperature Range
−40˚C to +105˚C
−40˚C to +105˚C
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Description
16-Lead TSSOP Package
16-Lead TSSOP Package, Tape & Reel
Evaluation Board
TRI-STATE® is a trademark of National Semiconductor Corporation.
MICROWIREis a trademark of National Semiconductor Corporation.
QSPIand SPIare trademarks of Motorola, Inc.
© 2005 National Semiconductor Corporation DS201666
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ADC088S052 Datasheet, Funktion
Timing Diagrams
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FIGURE 1. ADC088S052 Operational Timing Diagram
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FIGURE 2. ADC088S052 Serial Timing Diagram
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FIGURE 3. SCLK and CS Timing Parameters
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ADC088S052 pdf, datenblatt
Typical Performance Characteristics VA = VD = +5.0V, TA = +25˚C, fSAMPLE = 500 kSPS, fSCLK = 8
MHz, fIN = 40.2 kHz unless otherwise stated. (Continued)
THD vs. Temperature
ENOB vs. Temperature
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SNR vs. Input Frequency
THD vs. Input Frequency
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ENOB vs. Input Frequency
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Power Consumption vs. SCLK
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12 Page





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