LTC2461.cpp File Reference

Library for LTC2461: 16-Bit I2C Delta Sigma ADCs with 10ppm/C Max Precision Reference. More...

Detailed Description

Library for LTC2461: 16-Bit I2C Delta Sigma ADCs with 10ppm/C Max Precision Reference.

Definition in file LTC2461.cpp.

Go to the source code of this file.

Functions
int8_t	LTC2461_read (uint8_t i2c_address, uint8_t adc_command, uint16_t *adc_code)
	Reads the ADC and returns 16-bit data. More...
int8_t	LTC2461_command (uint8_t i2c_address, uint8_t adc_command)
	Write a 16-bit command to the ADC. More...
float	LTC2461_code_to_voltage (uint16_t adc_code, float LTC2461_lsb, int32_t LTC2461_offset_code)
	Calculates the LTC2309 input unipolar voltage. More...
void	LTC2461_cal_voltage (uint16_t zero_code, uint16_t fs_code, float zero_voltage, float fs_voltage, float *LTC2461_lsb, int32_t *LTC2461_offset_code)
	Calibrate the lsb. More...

Function Documentation

LTC2461_cal_voltage()

void LTC2461_cal_voltage	(	uint16_t	zero_code,
		uint16_t	fs_code,
		float	zero_voltage,
		float	fs_voltage,
		float *	LTC2461_lsb,
		int32_t *	LTC2461_offset_code
	)

Calibrate the lsb.

Returns

Void

Parameters

zero_code	Code from zero reading
fs_code	Full-scale code
zero_voltage	Measured zero voltage
fs_voltage	Measured full-scale voltage
LTC2461_lsb	Return LSB value (volts)
LTC2461_offset_code	Return Offset code

Definition at line 111 of file LTC2461.cpp.

LTC2461_code_to_voltage()

float LTC2461_code_to_voltage	(	uint16_t	adc_code,
		float	LTC2461_lsb,
		int32_t	LTC2461_offset_code
	)

Calculates the LTC2309 input unipolar voltage.

Returns

Floating point voltage

Parameters

adc_code	Raw ADC code
LTC2461_lsb	LSB value (volts)
LTC2461_offset_code	Offset code

Definition at line 103 of file LTC2461.cpp.

LTC2461_command()

int8_t LTC2461_command	(	uint8_t	i2c_address,
		uint8_t	adc_command
	)

Write a 16-bit command to the ADC.

Derived from 2655.

Returns

Returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.

Parameters

i2c_address	I2C address of the LTC2461.
adc_command	ADC command to be written to the LTC2461.

Definition at line 93 of file LTC2461.cpp.

LTC2461_read()

int8_t LTC2461_read	(	uint8_t	i2c_address,
		uint8_t	adc_command,
		uint16_t *	adc_code
	)

Reads the ADC and returns 16-bit data.

Returns

Returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.

Parameters

i2c_address	I2C address of the LTC2461.
adc_command	ADC command to be written to the LTC2461.
adc_code	Returns code read from ADC.

Definition at line 82 of file LTC2461.cpp.