AD74115BCPZ datasheet(79/103 Pages) AD

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Data Sheet

AD74115

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Table 42. Bit Descriptions for DIN_CONFIG2 (Continued)

Bits

Bit Name

Description

Reset

Access

DIN_UNBUF_EN

Digital Input Unbuffered Enable.

0x0

R/W

DIN_SC_DET_EN

Digital Input Short Circuit Detect Enable (when configured for IEC 61131 Type 3D diagnostics, as

described in the Digital Input Logic section).

0x0

R/W

DIN_OC_DET_EN

Digital Input Open Circuit Detect Enable (when configured for IEC 61131 Type 3D diagnostics, as

described in the Digital Input Logic section).

0x0

R/W

DIN_THRESH_MODE

This Bitfield Sets the Reference to the DIN Threshold DAC.

0x0

R/W

0: the threshold scales with AVDD. The threshold range is from −0.96 × AVDD to AVDD.

1: fixed threshold. Threshold is from −19 V to +30 V.

[6:0]

COMP_THRESH

Comparator Threshold. DIN comparator threshold.

0x0

R/W

Output Configuration Register

Address: 0x06, Reset: 0x0000, Name: OUTPUT_CONFIG

This register configures the output settings of the channel.

Table 43. Bit Descriptions for OUTPUT_CONFIG

Bits

Bit Name

Description

Reset

Access

[15:8]

RESERVED

Reserved.

0x0

VOUT_RANGE

Voltage Output Range.

0x0

R/W

0: 0 to 12 V.

1: −12 V to +12 V.

[6:5]

SLEW_EN

Selects DAC Slew Option.

0x0

R/W

00: slewing disabled. Slewing stops immediately when disabled, there are no further updates to the DAC code.

01: enable linear slew on the DAC output.

Others: reserved.

[4:3]

SLEW_LIN_STEP

Step Size for Digital Linear Slew.

0x0

R/W

00: voltage step size of 0.8% of full-scale DAC voltage.

01: voltage step size of 1.5% of full-scale DAC voltage.

10: voltage step size of 6.1% of full-scale DAC voltage.

11: voltage step size of 22.2% of full-scale DAC voltage.

[2:1]

SLEW_LIN_RATE

Update Rate for Digital Linear Slew.

0x0

R/W

00: update at a rate of 4 kHz.

01: update at a rate of 64 kHz.

10: update at a rate of 150 kHz.

11: update at a rate of 240 kHz.

I_LIMIT

Sets the Sink and Source Current Limits in Output Modes. These are typical current limits.

0x0

R/W

0: Current-Limit 0. VOUT: 32 mA source or sink. IOUT: 4 mA sink.

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