原廠料號：DN405–RTD品牌：THERMOPTICS

The DN405 is a four wire 100 ohm platinum resistance

temperature detector (RTD) signal conditioning circuit that

transforms RTD resistance to a voltage that is proportional

to temperature in °C. This device was designed to operate

with a 100 ohm IEC/DIN-grade Platinum RTD that exhibits

an alpha value of 0.00385!/!/°C. Analog circuit

linearization provides typical accuracy of ±0.5°C over a

temperature range of -100°C to +400°C. The four wire

measurement circuit eliminates the effect of lead resistance

that allows the RTD to be remotely located from the DN405

signal conditioning circuit. The DN405, which operates

from a single supply voltage of +2.7V to +5.5V, draws only

1.3mA of current, making it ideal for portable applications.

The DN405 compensates for the inherent non-linearity of

all platinum RTDs. The output voltage of the device is

directly proportional to the temperature of the RTD. No

digital signal processing is required to make

accurate temperature measurements. The four

wire capability of the DN405 makes it possible to multiplex

several RTDs with one device. This is useful in data

• 芯片型號：

  DN405–RTD

• 規(guī)格書：

  下載

• 資料說明：

  RF & MICROWAVE PRODUCT SOLUTIONS 6.04 - Bulk