/*!
LTC2473: 16-Bit, Delta Sigma ADC with I2C interface.

@verbatim

The LTC2471/LTC2473 are small, 16-bit analog-to-digital converters with an
integrated precision reference and a selectable 208sps or 833sps output
rate. They use a single 2.7V to 5.5V supply and communicate through an I2C
Interface. The LTC2471 is single-ended with a 0V to VREF input range and
the LTC2473 is differential with a +-VREF input range. Both ADC's include
a 1.25V integrated reference with 2ppm/C drift performance and 0.1% initial
accuracy. They include an integrated oscillator and perform conversions with
no latency for multiplexed applications. The LTC2471/LTC2473 include a
proprietary input sampling scheme that reduces the average input current
several orders of magnitude when compared to conventional delta sigma
converters.

@endverbatim

http://www.linear.com/product/LTC2473

http://www.linear.com/product/LTC2473#demoboards


Copyright 2018(c) Analog Devices, Inc.

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*/

//! @ingroup Analog_to_Digital_Converters
//! @{
//! @defgroup LTC2473 LTC2473: 16-Bit, Delta Sigma ADC with I2C interface
//! @}

/*! @file
    @ingroup LTC2473
    Library for LTC2473: 16-Bit, Delta Sigma ADC with I2C interface
*/

#include <stdint.h>
#include <Arduino.h>
#include "Linduino.h"
#include "LT_I2C.h"
#include "LTC2473.h"
#include "LTC24XX_general.h"

// Reads from LTC2473.
uint8_t LTC2473_read(uint8_t i2c_address, int32_t *adc_code, uint16_t timeout)
{
  uint8_t ack = 0;
  ack = LTC24XX_I2C_32bit_data( i2c_address, adc_code, timeout);    // Read data
  return ack;
}

// Write to the LTC2473
uint8_t LTC2473_write(uint8_t i2c_address, uint8_t adc_command)
{
  int32_t data;
  uint8_t ack = 0;
  ack = LTC24XX_I2C_8bit_command_32bit_data(i2c_address, adc_command, &data, 300); // Write command
  return ack;
}

// Calculates the voltage corresponding to an adc code, given the reference (in volts)
float LTC2473_code_to_voltage(int32_t adc_code, float vref)
{
  float adc_voltage;
  adc_voltage =  LTC24XX_diff_code_to_voltage(adc_code, vref);
  return(adc_voltage);
}