LTC2450 datasheet(23/34 Pages) AD

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LTC2945

Rev. C

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APPLICATIONS INFORMATION

Table 3. CONTROL Register A (00h) – Read/Write

BIT

NAME

OPERATION

ADC Snapshot Mode Enable

Enables ADC Snapshot Mode; 1 = Snapshot Mode Enabled. Only channel selected by A6 and A5 is

measured by the ADC. After the conversion, the BUSY bit is reset and the ADC is halted.

0 = Snapshot Mode Disabled (Continuous Scan Mode. Default)

ADC Channel Label for Snapshot Mode ADC Channel Label for Snapshot Mode

ADC Channel

ΔSENSE (Default)

VIN

ADIN

Test Mode Enable

Test Mode Halts ADC Operation and Enables Writes to Internal ADC/LOGIC Registers;

1 = Enable Test Mode, 0 = Disable Test Mode (Default)

ADC Busy in Snapshot Mode

ADC Current Status; 1 = ADC Converting, 0 = ADC Conversion Completed (Default), Not Writable

VIN Monitor

Enables VDD or SENSE+ Voltage Monitoring; 1 = Monitor SENSE+ Voltage (Default),

0 = Monitor VDD Voltage

Shutdown Enable

Enables Low-IQ / Shutdown Mode; 1 = Enable Shutdown, 0 = Normal Operation (Default)

Multiplier Select

Selects ADIN or SENSE+/VDD (depends on A2) data for digital multiplication with SENSE data;

1 = Select SENSE+/VDD (Default), 0 = Select ADIN

Table 4. ALERT Register B (01h) – Read/Write

BIT

NAME

OPERATION

Maximum POWER Alert

Enables Alert When POWER Calculation Data is > Maximum Power Threshold;

1 = Enable Alert,

0 = Disable Alert (Default)

Minimum POWER Alert

Enables Alert When POWER Calculation Data is < Minimum Power Threshold;

1 = Enable Alert,

0 = Disable Alert (Default)

Maximum ΔSENSE Alert

Enables Alert When ADC ΔSENSE Measurement Data is > Maximum ΔSENSE Threshold;

1 = Enable Alert,

0 = Disable Alert (Default)

Minimum ΔSENSE Alert

Enables Alert When ADC ΔSENSE Measurement Data is < Minimum ΔSENSE Threshold;

1 = Enable Alert,

0 = Disable Alert (Default)

Maximum VIN Alert

Enables Alert When ADC VIN Measurement Data is > Maximum VIN Threshold;

1 = Enable Alert,

0 = Disable Alert (Default)

Minimum VIN Alert

Enables Alert When ADC VIN Measurement Data is < Minimum VIN Threshold;

1 = Enable Alert,

0 = Disable Alert (Default)

Maximum ADIN Alert

Enables Alert When ADC ADIN Measurement Data is > Maximum ADIN Threshold;

1 = Enable Alert,

0 = Disable Alert (Default)

Minimum ADIN Alert

Enables Alert When ADC ADIN Measurement Data is < Minimum ADIN Threshold;

1 = Enable Alert,

0 = Disable Alert (Default)

LTC2450 Datasheet(PDF) 23 Page - Analog Devices

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