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ADC78H90CIMTX/NOPB
8-Channel, 500 KSPS, 12-Bit A/D Converter 16-TSSOP -40 to 85
AIN1
AIN8
MUX T/H
ADC78H90
SCLK
AVDD
AGND
DGND
DVDD
DIN
DOUT
CONTROL
LOGIC
12-BIT
SUCCESSIVE
APPROXIMATION
ADC
AGND 9CS SCLKDD DOUT
AGND DIN
AIN1 DVDD
AIN2 DGND
AIN3 AIN8
AIN4 AIN7
AIN5 AIN6
ADC78H90
ADC78H90
www.ti.com SNAS227D –NOVEMBER 2003–REVISED MARCH 2013
ADC78H90 8-Channel, 500 kSPS, 12-Bit A/D Converter
Checkfor Samples: ADC78H90The ADC78H90is packagedina 16-lead TSSOP
1FEATURESpackage. Operation over the industrial temperature
Eight input channels rangeof −40°Cto +85°Cis ensured.
Variable power management
Connection Diagram• Independent analog and digital supplies SPI™/QSPI™/MICROWIRE™/DSP compatible Packagedin 16-lead TSSOP
APPLICATIONS Automotive Navigation Portable Systems Medical Instruments Mobile Communications Instrumentation and Control Systems
KEY SPECIFICATIONS
Figure1. 16-Lead TSSOP• Conversion Rate: 500kSPS See PW Package DNL:± 1LSB (max) INL:± 1LSB (max) Block Diagram• Power Consumption 3V Supply: 1.5 mW (typ) 5V Supply: 8.3 mW (typ)
DESCRIPTIONThe ADC78H90isa low-power, eight-channel CMOS
12-bit analog-to-digital converter witha conversion
throughputof 500 kSPS. The converteris basedona register architecture with circuit.It canbe configured inputat inputs AIN1 andis SPI™, DSP independent supply (AVDD) the digital AVDD. Normal supplyis 1.5 power-downto just 0.3 usinga +5V
