/*!
LTC2312-12: 12-Bit, 500Ksps ADC.
LTC2312-14: 14-Bit, 500Ksps ADC.
LTC2313-12: 12-Bit, 2.5Msps ADC
LTC2313-14: 14-Bit, 2.5Msps ADC
LTC2314-14: 14-Bit, 4.5Msps ADC
LTC2315-12: 12-Bit, 5Msps ADC

@verbatim

The following parts (DUT) are pin-compatible, 12/14-bit A/D converters with serial I/O, and an internal reference:
LTC2312-12: 12-Bit, 500Ksps ADC.
LTC2312-14: 14-Bit, 500Ksps ADC.
LTC2313-12: 12-Bit, 2.5Msps ADC
LTC2313-14: 14-Bit, 2.5Msps ADC
LTC2314-14: 14-Bit, 4.5Msps ADC
LTC2315-12: 12-Bit, 5Msps ADC

Example Code:

Read ADC input.

    LTC2315_read(LTC2315_CS, &adc_code);   // Throws out last reading
    LTC2315_read(LTC2315_CS, &adc_code);   // Obtains the current reading and stores to adc_code variable

    // Convert adc_code to voltage
    adc_voltage = LTC2315_code_to_voltage(adc_code, vref);

@endverbatim

http://www.linear.com/product/LTC2312-12
http://www.linear.com/product/LTC2312-14
http://www.linear.com/product/LTC2313-12
http://www.linear.com/product/LTC2313-14
http://www.linear.com/product/LTC2314-14
http://www.linear.com/product/LTC2315-12

http://www.linear.com/product/LTC2312-12#demoboards
http://www.linear.com/product/LTC2312-14#demoboards
http://www.linear.com/product/LTC2313-12#demoboards
http://www.linear.com/product/LTC2313-14#demoboards
http://www.linear.com/product/LTC2314-14#demoboards
http://www.linear.com/product/LTC2315-12#demoboards


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*/

/*! @file
    @ingroup LTC2315
    Header for LTC2315: 12/14-bit 1Msps ADC
*/

#ifndef LTC2315_H
#define LTC2315_H

#include <SPI.h>

//! Define the SPI CS pin
#ifndef LTC2315_CS
#define LTC2315_CS QUIKEVAL_CS
#endif

//! @name LTC2315 Channel Address
//! @{
// Channel Address
#define LTC2315_ADDRESS             0x00
//!@}


//! Reads the LTC2315 and returns 32-bit data in offset binary format
//! @return void
void LTC2315_read(uint8_t cs,           //!< Chip Select Pin
                  uint16_t *ptr_adc_code    //!< Returns code read from ADC (from previous conversion)
                 );


//! Calculates the LTC2315 input voltage given the binary data and lsb weight.
//! @return Floating point voltage
float LTC2315_code_to_voltage(uint16_t adc_code,                   //!< Raw ADC code
                              uint8_t shift,
                              float vref              //!< Reference voltage
                             );

#endif  //  LTC2315_H


