XTR115数据手册集成电路（IC）的传感器检测器接口规格书PDF

描述 Description

The XTR115 and XTR116 are precision current output converters designed to transmit analog 4-to-20mA signals over an industry standard current loop. They provide accurate current scaling and output current limit functions. The on-chip voltage regulator (5V) can be used to power external circuitry. A precision on-chip VREF (2.5V for XTR115 and 4.096V for XTR116) can be used for offsetting or to excite transducers. A current return pin (IRET) senses any current used in external circuitry to assure an accurate control of the output current. The XTR115 is a fundamental building block of smart sensors using 4-to-20mA current transmission. The XTR115 and XTR116 are specified for operation over the extended industrial temperature range, -40°C to +85°C.

特性 Features

• LOW QUIESCENT CURRENT: 200µA
• 5V REGULATOR FOR EXTERNAL CIRCUITS
• V REF FOR SENSOR EXCITATION:    XTR115: 2.5V    XTR116: 4.096V
• LOW SPAN ERROR: 0.05%
• LOW NONLINEARITY ERROR: 0.003%
• WIDE LOOP SUPPLY RANGE: 7.5V to 36V
• SO-8 PACKAGE
• APPLICATIONS
• 2-WIRE, 4-20mA CURRENT LOOP TRANSMITTER
• SMART TRANSMITTER
• INDUSTRIAL PROCESS CONTROL
• TEST SYSTEMS
• COMPATIBLE WITH HART MODEM
• CURRENT AMPLIFIER
• VOLTAGE-TO-CURRENT AMPLIFIER