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Linduino
1.3.0
Linear Technology Arduino-Compatible Demonstration Board
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LTC2600: Octal 16-Bit Rail-to-Rail DACs in 16-Lead SSOP. More...
LTC2600: Octal 16-Bit Rail-to-Rail DACs in 16-Lead SSOP.
The LTC2600/LTC2610/LTC2620 are octal 16-, 14- and 12-bit, 2.5V-to-5.5V rail-to-rail voltage-output DACs in 16-lead narrow SSOP and 20-lead 4mm × 5mm QFN packages. They have built-in high performance output buffers and are guaranteed monotonic. These parts establish advanced performance standards for output drive, crosstalk and load regulation in single-supply, voltage output multiples. SPI DATA FORMAT (MSB First): 24-Bit Load Sequence: Byte #1 Byte #2 Byte #3 Command MSB LSB LTC2600-16 : C3 C2 C1 C0 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 LTC2610-14 : C3 C2 C1 C0 A3 A2 A1 A0 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 X X LTC2620-12 : C3 C2 C1 C0 A3 A2 A1 A0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 X X X X 32-Bit Load Sequence: Byte #1 Byte #2 Byte #3 Byte #4 Command MSB LSB LTC2600-16 : X X X X X X X X C3 C2 C1 C0 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 LTC2610-14 : X X X X X X X X C3 C2 C1 C0 A3 A2 A1 A0 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 X X LTC2620-12 : X X X X X X X X C3 C2 C1 C0 A3 A2 A1 A0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 X X X X Cx : DAC Command Code Ax : DAC Address (0=DACA, 1=DACB, 2=DACC, 3=DACD, 0xFF=All DACs) Dx : DAC Data Bits X : Don't care Example Code: Set DAC A to to 2V for 16-bit DAC. shift_count = 0; // 16-bit DAC does not have to be shifted dac_voltage = 2.0; // Sets dac voltage variable to 2v dac_code = LTC2600_voltage_to_code(dac_voltage, LTC2600_lsb, LTC2600_offset); // Calculate DAC code from voltage, lsb, and offset LTC2600_write(LTC2600_CS, LTC2600_CMD_WRITE_UPDATE, LTC2600_DAC_A, dac_code << shift_count); // Set DAC A with DAC code
http://www.linear.com/product/LTC2600
http://www.linear.com/product/LTC2600#demoboards
Copyright 2018(c) Analog Devices, Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Header for LTC2600: Octal 16-Bit Rail-to-Rail DACs in 16-Lead SSOP
Definition in file LTC2600.h.
Go to the source code of this file.
Macros | |
#define | LTC2600_CS QUIKEVAL_CS |
Define the SPI CS pin. More... | |
LTC2600 Command Codes | |
OR'd together with the DAC address to form the command byte | |
#define | LTC2600_CMD_WRITE 0x00 |
Write to input register n. More... | |
#define | LTC2600_CMD_UPDATE 0x10 |
Update (power up) DAC register n. More... | |
#define | LTC2600_CMD_WRITE_UPDATE_ALL 0x20 |
Write to input register n, update (power up) all. More... | |
#define | LTC2600_CMD_WRITE_UPDATE 0x30 |
Write to input register n, update (power up) all. More... | |
#define | LTC2600_CMD_POWER_DOWN 0x40 |
Power down n. More... | |
#define | LTC2600_CMD_NO_OPERATION 0xF0 |
No operation. More... | |
Dac Addresses | |||||||||||||||||||||
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#define | LTC2600_DAC_A 0x00 | ||||||||||||||||||||
#define | LTC2600_DAC_B 0x01 | ||||||||||||||||||||
#define | LTC2600_DAC_C 0x02 | ||||||||||||||||||||
#define | LTC2600_DAC_D 0x03 | ||||||||||||||||||||
#define | LTC2600_DAC_E 0x04 | ||||||||||||||||||||
#define | LTC2600_DAC_F 0x05 | ||||||||||||||||||||
#define | LTC2600_DAC_G 0x06 | ||||||||||||||||||||
#define | LTC2600_DAC_H 0x07 | ||||||||||||||||||||
#define | LTC2600_DAC_ALL 0x0F | ||||||||||||||||||||
void | LTC2600_write (uint8_t cs, uint8_t dac_command, uint8_t dac_address, uint16_t dac_code) | ||||||||||||||||||||
Write the 16-bit dac_code to the LTC2600. More... | |||||||||||||||||||||
uint16_t | LTC2600_voltage_to_code (float dac_voltage, float LTC2600_lsb, int16_t LTC2600_offset) | ||||||||||||||||||||
Calculate a LTC2600 DAC code given the desired output voltage and DAC address (0-3) More... | |||||||||||||||||||||
float | LTC2600_code_to_voltage (uint16_t dac_code, float LTC2600_lsb, int16_t LTC2600_offset) | ||||||||||||||||||||
Calculate the LTC2600 DAC output voltage given the DAC code, offset, and LSB value. More... | |||||||||||||||||||||
float LTC2600_code_to_voltage | ( | uint16_t | dac_code, |
float | LTC2600_lsb, | ||
int16_t | LTC2600_offset | ||
) |
Calculate the LTC2600 DAC output voltage given the DAC code, offset, and LSB value.
dac_code | DAC code |
LTC2600_lsb | LSB value (volts) |
LTC2600_offset | Offset (volts) |
Definition at line 103 of file LTC2600.cpp.
uint16_t LTC2600_voltage_to_code | ( | float | dac_voltage, |
float | LTC2600_lsb, | ||
int16_t | LTC2600_offset | ||
) |
Calculate a LTC2600 DAC code given the desired output voltage and DAC address (0-3)
dac_voltage | Voltage to send to DAC |
LTC2600_lsb | LSB value (volts) |
LTC2600_offset | Offset (volts) |
Definition at line 90 of file LTC2600.cpp.
void LTC2600_write | ( | uint8_t | cs, |
uint8_t | dac_command, | ||
uint8_t | dac_address, | ||
uint16_t | dac_code | ||
) |
Write the 16-bit dac_code to the LTC2600.
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 75 of file LTC2600.cpp.
#define LTC2600_CMD_UPDATE 0x10 |
#define LTC2600_CMD_WRITE_UPDATE 0x30 |
#define LTC2600_CMD_WRITE_UPDATE_ALL 0x20 |
#define LTC2600_CS QUIKEVAL_CS |