SLDS231 August 2018 PGA305
PRODUCTION DATA.
Before the PAG305 device can be used in any application, the device must be configured by setting various control registers to the desired values. Table 19 lists all the registers that must be configured and their respective default configurations. Note that the registers are configured by writing to the appropriate EEPROM addresses listed in the Control and Status Registers section.
REGISTER | VALUE (HEX) | DESCRIPTION |
---|---|---|
DIG_IF_CTRL | 0x62 | I2C Interface Enabled in Fast Mode (400kHz - 800kHz) |
DAC_CONFIG | 0x00 | DAC is set for absolute voltage output. |
OP_STAGE_CTRL | 0x02 | Output is configured for 0V - 5V absolute Voltage Output (DAC Gain 4V/V). |
BRG_CTRL | 0x01 | Bridge excitation is set to 2.5 V. |
P_GAIN_SELECT | 0x80 | P_GAIN is set to 5 V/V gain with Signal Inversion. |
T_GAIN_SELECT | 0x00 | T_GAIN is set for 1.33 V/V gain without Signal Inversion. |
TEMP_CTRL | 0x40 | ITEMP drive is disabled and T signal chain is set for VINT+ – VINT–. |
TEMP_SE | 0x00 | T GAIN is in single-ended configuration. |
NORMAL_LOW_LSB | 0x67 | DAC normal low output set to 0x0667. Must be updated during calibration |
NORMAL_LOW_MSB | 0x06 | DAC normal low output set to 0x0667. Must be updated during calibration |
NORMAL_HIGH_LSB | 0x9A | DAC normal high output set to 0x399A. Must be updated during calibration |
NORMAL_HIGH_MSB | 0x39 | DAC normal high output set to 0x399A. Must be updated during calibration |
LOW_CLAMP_LSB | 0x34 | DAC clamp low output set to 0x0334. Must be updated during calibration |
LOW_CLAMP_MSB | 0x03 | DAC clamp low output set to 0x0334. Must be updated during calibration |
HIGH_CLAMP_LSB | 0xCF | DAC clamp high output set to 0x3CCF. Must be updated during calibration |
HIGH_CLAMP_MSB | 0x3C | DAC clamp high output set to 0x3CCF. Must be updated during calibration |
DIAG_ENABLE | 0x00 | Application Diagnostics are Disabled (The device will not Reset on WatchDog Error or EEPROM CRC Error) |
EEPROM_LOCK | 0x00 | EEPROM is unlocked. |
AFEDIAG_CFG | 0x07 | Diagnostics pulldown (1 MΩ) and pullup (1 MΩ) resistors enabled, VINP_UV threshold = 10% and VINP_OV threshold = 70% |
DIAG_ENABLE | 0x00 | Diagnostics are disabled. |
AFEDIAG_MASK | 0x21 | VINP_OV and PGAIN_UV detection enabled |
SERIAL_NUMBER_BYTE0-1-2-3 | 0x00000000 | Serial number specified by customer |