●The HCPL-7850 is commercial grade isolation amplifier that provides accurate, electrically isolated and amplified representations of voltage and current. When used with a shunt resistor to monitor the motor phase current in a high speed motor drive, the device will offer superior reliability compared with the traditional solutions such as current transformers and Hall-effect sensors. This device consists of a sigma-delta analog-to-digital converter optically coupled to a digital-to-analog converter in a hermetically sealed 8-Pin ceramic DIP package. Gold plated leads, solder dipped leads and various lead form options are also available. See the datasheet for details.
●The products are capable of operation and storage over the full military temperature range and may also be purchased with full MIL-PRF-38534 Class H level testing or from the DLA SMD 5962-97557. The HCPL-7850 is manufactured and tested on a MIL-PRF-38534 certified line and the Class H version is included in the DLA Qualified Manufacturers List, QML-38534 for Hybrid Microcircuits.
●Superior performance in design critical specifications such as common-mode rejection, offset voltage, nonlinearity, and operating temperature make this product an excellent choice for designing reliable products such as motor controllers and inverters.
●Common-mode rejection of 8 kV/micro-second makes the HCPL-7850/7851 suitable for noisy electrical environments such as those generated by the high switching rates of power IGBTs.
●Low offset voltage together with a low offset voltage temperature coefficient permits accurate use of auto-calibration techniques.
●Gain tolerance of 5% with 0.1% nonlinearity further provide the performance necessary for accurate feedback and control.
●### Features
● Commercial Grade, 8-Pin DIP
● Performance Guaranteed over -55 degC to 125 degC
● MIL-PRF-38534 Class H Available
● DLA Standard Microcircuit Drawing Available
● High Common Mode Rejection (CMR): 8 kV/µs at VCM = 1000 V
● 5% Gain Tolerance
● 0.1% Nonlinearity
● Low Offset Voltage and Offset Temperature Coefficient
● 100 kHz Bandwidth
● 1500 Vdc Withstand Test Voltage
Part 3D Model
