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ADC78H89CIMT Arkusz danych(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Numer części ADC78H89CIMT
Szczegółowy opis  7-Channel, 500 KSPS, 12-Bit A/D Converter
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Producent  NSC [National Semiconductor (TI)]
Strona internetowa  http://www.national.com
Logo NSC - National Semiconductor (TI)

ADC78H89CIMT Arkusz danych(HTML) 1 Page - National Semiconductor (TI)

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ADC78H89
7-Channel, 500 KSPS, 12-Bit A/D Converter
General Description
The ADC78H89 is a low-power, seven-channel CMOS 12-bit
analog-to-digital converter with a conversion throughput of
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 seven
input signals on pins AIN1 through AIN7.
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 ADC78H89 may be operated with independent analog
and digital supplies. The analog supply (AV
DD) can range
from +2.7V to +5.25V, and the digital supply (DV
DD) can
range from +2.7V to AV
DD. Normal power consumption using
a +3V or +5V supply is 1.5 mW and 8.3 mW, respectively.
The power-down feature reduces the power consumption to
just 0.3 µW using a +3V supply, or 0.5 µW using a +5V
supply. The ADC78H89 is packaged in a 16-lead TSSOP
package. Operation over the industrial temperature range of
−40˚C to +85˚C is guaranteed.
Features
n
Seven 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
500 KSPS
n
DNL
± 1 LSB (max)
n
INL
± 1 LSB (max)
n
Power Consumption
— 3V Supply
1.5 mW (typ)
— 5V Supply
8.3 mW (typ)
Applications
n
Automotive Navigation
n
Portable Systems
n
Medical Instruments
n
Mobile Communications
n
Instrumentation and Control Systems
Connection Diagram
20061605
Ordering Information
Order Code
Temperature Range
Description
ADC78H89CIMT
−40˚C to +85˚C
16-Lead TSSOP Package
ADC78H89CIMTX
−40˚C to +85˚C
16-Lead TSSOP Package, Tape & Reel
ADC78H89EVAL
Evaluation Board
TRI-STATE® is a trademark of National Semiconductor Corporation.
MICROWIREis a trademark of National Semiconductor Corporation.
QSPIand SPIare trademarks of Motorola, Inc.
March 2005
© 2005 National Semiconductor Corporation
DS200616
www.national.com


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