|Hermetically Sealed Analog Isolation Amplifier Technical Data
Performance Guaranteed over Full Military Temperature Range: to +125�C Manufactured and Tested a MIL-PRF-38534 Certified Line Hermetically Sealed Packages Dual Marked with Device Part Number and DSCC Drawing Number QML-38534, Class H HCPL-7840 Function Compatibility High Common Mode Rejection (CMR): 8 kV/�s at VCM V 5% Gain Tolerance 0.1% Nonlinearity Low Offset Voltage and Offset Temperature Coefficient 100 kHz BandwidthApplications
Industrial and Military High Reliability Systems Harsh Industrial Environments Transportation, Medical, and Life Critical Systems General Purpose Analog Signal Isolation Motor Phase and Rail Current Sensing Inverter Current Sensing Switched Mode Power Supply Signal Isolation General Purpose Current Sensing and MonitoringDescription
The is an 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. The HCPL-7850/7851
consists of a sigma-delta analogto-digital converter optically coupled to a digital-to-analog converter in a hermetically sealed package. The products are capable of operation and storage over the full military temperature range and can be purchased as either commercial product or with full MIL-PRF-38534 Class H testing or from the appropriate DSCC drawing. All devices are manufactured and tested a MIL-PRF-38534 certified line and are included in the DSCC Qualified Manufacturers List, QML-38534 for Hybrid Microcircuits.
0.1 F bypass capacitor must be connected between pins 1 and 4 and between pins 5 and 8. CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD.
Superior performance in design critical specifications such as common-mode rejection, offset voltage, nonlinearity, and operating temperature make the HCPL-7850/7851 an excellent choice for designing reliable products such as motor controllers and inverters.
Common-mode rejection of 8 kV/�s 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.Selection Guide-Package Styles and Lead Configuration Options
Agilent Part Number and Options Commercial MIL-PRF-38534, Class H Standard Lead Finish Solder Dipped Butt Cut/Gold Plate Gull Wing/Soldered SMD Part Number Prescript for all below Either Gold or Solder Gold Plate Solder Dipped Butt Cut/Gold Plate Butt Cut/Soldered Gull Wing/Soldered HCPL-7850 HCPL-7851 Gold Plate Option #200 Option #100 Option #300Agilent DESIGNATOR Agilent P/N DSCC SMD* DSCC SMD* PIN ONE/ ESD IDENT
A QYYWWZ XXXXXXXX XXXXXXXXX XXX 50434 * QUALIFIED PARTS ONLY
COMPLIANCE INDICATOR,* DATE CODE, SUFFIX (IF NEEDED) COUNTRY OF MFR. Agilent CAGE CODE*
Option 100 Description Surface mountable hermetic optocoupler with leads trimmed for butt joint assembly. This option is available on commercial and hi-rel product in 8 pin DIP (see drawings below for details).
Lead finish is solder dipped rather than gold plated. This option is available on commercial and hi-rel product in 8 pin DIP. DSCC Drawing part numbers contain provisions for lead finish. Surface mountable hermetic optocoupler with leads cut and bent for gull wing assembly. This option is available on commercial and hi-rel product in 8 pin DIP (see drawings below for details). This option has solder dipped leads.