TOKYO—Toshiba Corporation’s (TOKYO: 6502) Semiconductor & Storage Products Company today announced the launch of optical coupled isolation amplifiers with a delta-sigma AD converter that can detect infinitesimal electric current and voltage fluctuation with high-precision, for use in industrial equipment applications. The new products will be in available in analog output and digital output types, and can be provided in either a low height 2.3mm(max) SO8L thin package or a conventional DIP8 package. Shipment of the new products starts today.
 

Monitoring the phase current of motors and BUS voltage fluctuations for accurate feedback to the microcontroller is essential to realizing the high-precision operation required in recent industrial equipment, including inverters and servo amplifiers. In order to meet these requirements, the new optical coupled isolation amplifiers are equipped with a high-precision delta-sigma AD converter on the input side and achieve the industry’s highest level of linearity^[1], a performance of 0.02%(typ.)@NL₂₀₀ for the analog output products and 3LSB(typ.)@INL for the digital output products. The isolation amplifiers also secure a CMTI (Common-Mode Transient Immunity) value of 20kV/µs(typ.), enabling stable operation in motor control applications which usually generate high levels of noise. Furthermore, the 5000V(min.) isolation voltage makes them suitable for use in various industrial equipment applications.

Line-up and Key Specifications

Analog output products

Part Number	TLP7820	TLP7920
Package	SO8L	DIP8
Output Type	Single phase output＝0 to 2.5V
Operation Temperature	-40 to 105 degrees Celsius
Input Voltage Range	±200mV/±300mV (FSR)
Non-linearity (NL200) ［±200mV］	0.02％ (typ.)
Gain Error （Ta=25 degrees Celsius）	±0.5/1/±3%
Supply Current (Input)	8.6mA (typ.)
Common Mode Transient Immunity	20kV/µs (typ.)@VCM=1kV,Ta＝25 degrees Celsius
Isolation Voltage	5000Vrms

Digital output products

Part Number	TLP7830	TLP7930
Package	SO8L	DIP8
Output Type	1bit digital / CLK Output
Operation Temperature	-40 to 105 degrees Celsius
Input Voltage Range	±200mV/±320mV (FSR)
Integral Non-linearity (INL200）	3LSB (typ.)
Gain Error （Ta=25 degrees Celsius）	±1% (min/max）
Supply Current (Input)	8.5mA (typ.)
Common Mode Transient Immunity	20kV/µs (typ.)@VCM=1kV,Ta＝25 degrees Celsius
Isolation Voltage	5000Vrms

Source:http://www.semicon.toshiba.co.jp/eng/