LMP92018SQXSLASHNOPB中文资料德州仪器数据手册PDF规格书

1FEATURES

2• 8 ANALOG VOLTAGE MONITORING

CHANNELS

– 10-Bit ADC with Programmable Input MUX

– Internal/External Reference

– Tolerates High-Source Impedance at Lower

Sampling Rates

• 4 PROGRAMMABLE ANALOG VOLTAGE

OUTPUTS

– Four 10-Bit DACs

– Internal/External Reference

– Drives Loads up to 1nF

• VOLTAGE REFERENCE

– User-Selectable Source: External or Internal

– Internal Reference 2.5V

• TEMPERATURE SENSOR

– ±2.5°C Accuracy

• 12-BIT GPIO PORT

– Each Bit Individually Programmable

– User-Selectable Rail

• SPI-COMPATIBLE BUS

– User-Selectable Rail

APPLICATIONS

• Communication Infrastructure

• System Monitoring and Control

• Industrial Monitoring and Control

DESCRIPTION

LMP92018 is a complete analog monitoring and

control circuit which integrates an eight channel 10-bit

Analog-to-Digital Converter (ADC), four 10-bit Digital- to-Analog Converters (DACs), an internal reference,

an internal temperature sensor, a12-bit GPIO port,

and a 10MHz SPI interface.

The eight channels of the ADC can be used to

monitor rail voltages, current sense amplifier outputs,

health monitors or sensors while the four DACs can be used to control PA (Power Amplifier) bias points,

control actuators, potentiometers, etc.

Both the ADC and DACs can use either the internal

2.5V reference or an external reference

independently allowing for flexibility in system design.

The built-in digital temperature sensor enables

accurate (±2.5°C) local temperature measurement

whose value is captured in the user accessible

register.