LTC2656.cpp File Reference

Library for LTC2656 Octal SPI 16-/12-Bit Rail-to-Rail DACs with 10ppm/C Max Reference. More...

Detailed Description

Library for LTC2656 Octal SPI 16-/12-Bit Rail-to-Rail DACs with 10ppm/C Max Reference.

Definition in file LTC2656.cpp.

Go to the source code of this file.

Functions
void	LTC2656_write (uint8_t cs, uint8_t dac_command, uint8_t dac_address, uint16_t dac_code)
	Write the 16-bit dac_code to the LTC2656. More...
uint16_t	LTC2656_voltage_to_code (float dac_voltage, float LTC2656_lsb, int16_t LTC2656_offset)
	Calculate a LTC2656 DAC code given the desired output voltage and DAC address (0-7) More...
float	LTC2656_code_to_voltage (uint16_t dac_code, float LTC2656_lsb, int16_t LTC2656_offset)
	Calculate the LTC2656 DAC output voltage given the DAC code, offset, and LSB value. More...
void	LTC2656_calibrate (uint16_t dac_code1, uint16_t dac_code2, float voltage1, float voltage2, float *LTC2656_lsb, int16_t *LTC2656_offset)
	Calculate the LTC2656 offset and LSB voltage given two measured voltages and their corresponding codes. More...

Function Documentation

LTC2656_calibrate()

void LTC2656_calibrate	(	uint16_t	dac_code1,
		uint16_t	dac_code2,
		float	voltage1,
		float	voltage2,
		float *	LTC2656_lsb,
		int16_t *	LTC2656_offset
	)

Calculate the LTC2656 offset and LSB voltage given two measured voltages and their corresponding codes.

Returns

Void

Parameters

dac_code1	First DAC code
dac_code2	Second DAC code
voltage1	First voltage
voltage2	Second voltage
LTC2656_lsb	Returns resulting LSB (volts)
LTC2656_offset	Returns resulting Offset (volts)

Definition at line 115 of file LTC2656.cpp.

LTC2656_code_to_voltage()

float LTC2656_code_to_voltage	(	uint16_t	dac_code,
		float	LTC2656_lsb,
		int16_t	LTC2656_offset
	)

Calculate the LTC2656 DAC output voltage given the DAC code, offset, and LSB value.

Returns

Calculated voltage

Parameters

dac_code	DAC code
LTC2656_lsb	LSB value (volts)
LTC2656_offset	Offset (volts)

Definition at line 107 of file LTC2656.cpp.

LTC2656_voltage_to_code()

uint16_t LTC2656_voltage_to_code	(	float	dac_voltage,
		float	LTC2656_lsb,
		int16_t	LTC2656_offset
	)

Calculate a LTC2656 DAC code given the desired output voltage and DAC address (0-7)

Returns

The 16-bit code to send to the DAC

Parameters

dac_voltage	Voltage to send to DAC
LTC2656_lsb	LSB value (volts)
LTC2656_offset	Offset (volts)

Definition at line 94 of file LTC2656.cpp.

LTC2656_write()

void LTC2656_write	(	uint8_t	cs,
		uint8_t	dac_command,
		uint8_t	dac_address,
		uint16_t	dac_code
	)

Write the 16-bit dac_code to the LTC2656.

Returns

Void

Parameters

cs	Chip Select Pin
dac_command	Command Nibble, left-justified, lower nibble set to zero
dac_address	DAC Address Nibble, right justified, upper nibble set to zero
dac_code	16-bit DAC code

Definition at line 79 of file LTC2656.cpp.