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Part Number: ADC78H90
Description: The ADC78H90 is a low-power, eight-channel CMOS 12-bit analog-to-digital converte...
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ADC78H90
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DataSheet
General Description
ADC78H90 General Description
The ADC78H90 is a low-power, eight-channel CMOS 12-bit analog-to-digital converter with a conversion throughput of 500 kSPS. The converter is based on a successiveapproximation register architecture with an internal trackand- hold circuit. It can be configured to accept up to eight input signals at inputs AIN1 through AIN8.
The output serial data is straight binary, and is compatible with several standards, such as SPITM, QSPITM, MICROWIRETM, and many common DSP serial interfaces.
The ADC78H90 may be operated with independent analog and digital supplies. The analog supply (AVDD) can range from +2.7V to +5.25V, and the digital supply (DVDD) can range from +2.7V to AVDD. 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 ADC78H90 is packaged in a 16-lead TSSOP package. Operation over the industrial temperature range of -40 to +85 is guaranteed.
ADC78H90 Maximum Ratings
Analog Supply Voltage AVDD -0.3V to 6.5V
Digital Supply Voltage DVDD -0.3V to AVDD +
0.3V, max 6.5V
Voltage on Any Pin to GND -0.3V to AVDD
+0.3V
Input Current at Any Pin (Note 3) ±10 mA
Package Input Current(Note 3) ±20 mA
Power Dissipation at TA = 25 See (Note 4)
ESD Susceptibility (Note 5)
Human Body Model 2500V
Machine Model 250V
Soldering Temperature, Infrared,
10 seconds (Note 6) 260
Junction Temperature +150
Storage Temperature -65 to +150
ADC78H90 Features
·Eight input channels
·Variable power management
·Independent analog and digital supplies
·SPI™/QSPI™/MICROWIRE™/DSP compatible
·Packaged in 16-lead TSSOP
·Variable power management
·Independent analog and digital supplies
·SPI™/QSPI™/MICROWIRE™/DSP compatible
·Packaged in 16-lead TSSOP
ADC78H90 Typical Application
·Automotive Navigation
·Portable Systems
·Medical Instruments
·Mobile Communications
·Instrumentation and Control Systems
·Portable Systems
·Medical Instruments
·Mobile Communications
·Instrumentation and Control Systems
ADC78H90 Connection Diagram
ADC78H90
PDF/DataSheet Download
- Datasheet: ADC78H90
- File Size: 471694 KB
- Manufacturer: NSC [National Semiconductor]
- Click here to Download
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