LTC2435-1IGN Linear Technology, LTC2435-1IGN Datasheet - Page 37

• Manufacturer Part Number: LTC2435-1IGN
• Description: IC CONV A/D 20BIT DIFF 16-SSOP
• Manufacturer: Linear Technology

Specifications of LTC2435-1IGN

• Number Of Bits: 20
• Sampling Rate (per Second): 13.75
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 2
• Power Dissipation (max): 1mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP (0.150", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

APPLICATIO S I FOR ATIO
}
while(1)
{
output_low(CS_);
while(input(SDO)) { /* Wait for SDO to fall, indicating end of conversion.*/ }
printf(“%2X”,spi_read(0));
printf(“%2X”,spi_read(0));
printf(“%2X”,spi_read(0));
printf(“\r”);
output_high(CS_);
}
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Figure 43. A Sample Program for Data Collection from the
LTC2435/LTC2435-1 Using the PIC16F73 Microcontroller.
// Enable LTC2435
// Read first byte, send 2 hex characters.
// Read second byte, send 2 hex characters.
/ Read third byte, send 2 hex characters.
// Send carriage return.
// Conversion actually started after last data byte was read,
// but raising CS_ ensures the loop will never lock up waiting for
// a low on SDO if a clock pulse is missed for some reason.
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LTC2435/LTC2435-1
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