Hermetically Sealed Analog
Isolation Amplifier
Technical Data
HCPL-7850
HCPL-7851
5962-97557
Features
• Performance Guaranteed
over Full Military
Temperature Range: –55˚C
to +125˚C
• Manufactured and Tested on
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/
µ
s at VCM = 1000 V
• 5% Gain Tolerance
• 0.1% Nonlinearity
• Low Offset Voltage and
Offset Temperature
Coefficient
• 100 kHz Bandwidth
Applications
• 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 Monitoring
Schematic Diagram
I
DD1
V
DD1
V
IN+
V
IN–
GND1
1
2
3
4
+
–
+
–
I
DD2
8
7
V
DD2
V
OUT+
V
OUT–
GND2
6
5
SHIELD
Description
The HCPL-7850/7851 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 analog-
to-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 on a
MIL-PRF-38534 certified line and
are included in the DSCC
Qualified Manufacturers List,
QML-38534 for Hybrid
Microcircuits.
A 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.
2
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/µs 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
5962-
9755701HPX
9755701HPC
9755701HPA
9755701HYC
9755701HYA
9755701HXA
HCPL-7850
HCPL-7851
Gold Plate
Option #200
Option #100
Option #300
Device Marking
Agilent DESIGNATOR
Agilent P/N
DSCC SMD*
DSCC SMD*
PIN ONE/
ESD IDENT
A QYYWWZ
XXXXXXXX
XXXXXXXXX
XXX
XXX
50434
* QUALIFIED PARTS ONLY
COMPLIANCE INDICATOR,*
DATE CODE, SUFFIX (IF NEEDED)
COUNTRY OF MFR.
Agilent CAGE CODE*
3
Outline Drawing
9.40 (0.370)
9.91 (0.390)
0.76 (0.030)
1.27 (0.050)
4.32 (0.170)
MAX.
8.13 (0.320)
MAX.
7.16 (0.282)
7.57 (0.298)
0.51 (0.020)
MIN.
3.81 (0.150)
MIN.
0.20 (0.008)
0.33 (0.013)
2.29 (0.090)
2.79 (0.110)
0.51 (0.020)
MAX.
NOTE: DIMENSIONS IN MILLIMETERS (INCHES).
7.36 (0.290)
7.87 (0.310)
Hermetic Optocoupler Options
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).
4.32 (0.170)
MAX.
0.51 (0.020)
MIN.
2.29 (0.090)
2.79 (0.110)
1.14 (0.045)
1.40 (0.055)
0.51 (0.020)
MAX.
NOTE: DIMENSIONS IN MILLIMETERS (INCHES).
0.20 (0.008)
0.33 (0.013)
7.36 (0.290)
7.87 (0.310)
200
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.
300
5.57 (0.180)
MAX.
0.20 (0.008)
0.33 (0.013)
9.65 (0.380)
9.91 (0.390)
5.57 (0.180)
MAX.
0.51 (0.020)
MIN.
2.29 (0.090)
2.79 (0.110)
1.40 (0.055)
1.65 (0.065)
0.51 (0.020)
MAX.
5° MAX.
NOTE: DIMENSIONS IN MILLIMETERS (INCHES).
4
Absolute
Maximum Ratings
Storage Temperature (T
S
) ............................................. –65 to +150˚C
Operating Temperature (T
A
) .......................................... –55 to +125˚C
Supply Voltages (V
DD1
, V
DD2
) ......................................... 0.0 to +5.5 V
Steady-State Input Voltage (V
IN+
, V
IN–
) ...... –2.0 V to V
DD1
+0.5 V (1/)
2 Second Transient Input Voltage ...... –6.0 V to V
DD1
+0.5 V (1/)
Output Voltages (V
OUT+
, V
OUT–
) ...........................–0.5 to V
DD2
+0.5 V
Lead Soldering Temperature (soldering, 10 seconds max.) ...... +260˚C
ESD Classification
(MIL-STD-883, Method 3015)
HCPL-7850/7851 ..... (v); Class 1
Recommended Operating Conditions
Parameter
Supply Voltages
Input Voltage (See Note 1)
Symbol
V
DD1
,
V
DD2
V
IN+
,
V
IN–
Min.
4.5
–200
Max.
5.5
+200
Units
Volts
mV
DC Electrical Specifications
Group A
[12]
Subgroups
1,2,3
2,3
5
Over recommended operating conditions (T
A
= –55˚C to +125˚C, V
IN+
= 0 V, V
IN–
= 0 V, V
DD1
= 5 V and
V
DD2
= 5 V, unless otherwise specified).
Parameter
Input Offset
Voltage
Gain
Symbol
V
OS
G
Min.
–1.0
7.36
Typ.* Max. Units
0.6
8.00
5.0
8.64
mV
V/V
Test Conditions
4.5 V
≤
V
DD1
, V
DD2
)
≤
5.5 V
Fig. Note
1,2,
3
2
–200 mV
≤
V
IN+
≤
200 mV 5,6,
4.5 V
≤
(V
DD1
, V
DD2
)
7
≤
5.5 V
–200 mV
≤
V
IN+
≤
200 mV 5,8,
4.5 V
≤
(V
DD1
, V
DD2
)
9,10,
≤
5.5 V
12
–100 mV
≤
V
IN+
≤
100 mV 5,8,
4.5 V
≤
(V
DD1
, V
DD2
)
9,11,
≤
5.5 V
12
3
1
200 mV
Nonlinearity
NL
200
2,3
7.60
8.00
0.05
8.4
0.8
%
1
100 mV
Nonlinearity
NL
100
2,3
0.05
0.01
0.2
0.2
1
Output
Common-Mode
Voltage
Input Supply
Current
Output Supply
Current
Input-Output
Insulation
Leakage
Current
Maximum
Input Voltage
Before Output
Clipping
Average Input
Bias Current
Average Input
Resistance
V
OCM
1,2,3
2.20
0.01
2.56
0.1
2.80
V
–400 mV
≤
V
IN+
≤
400 mV
4.5 V
≤
(V
DD1
, V
DD2
)
≤
5.5 V
14,17
15,17
RH = 45%, t = 5 sec.
V
I–O
= 1500 Vdc,
T
A
= 25˚C
4,12
11
I
DD1
I
DD2
I
I–O
1,2,3
1,2,3
1
10.7
9.4
15.5
14.5
1.0
mA
mA
µA
|V
IN+
|
MAX
320
mV
I
IN
R
IN
–0.57
480
69
µA
kΩ
dB
13
4
Input DC
CMRR
IN
Common-Mode
Rejection Ratio
Output
Resistance
Output Low
Voltage
Output High
Voltage
Output Short-
Circuit Current
Resistance
(Input-Output)
Capacitance
(Input–Output)
R
O
V
OL
V
OH
|I
OSC
|
R
I–O
C
I–O
5
1
1.28
3.84
11
10
12
2.7
Ω
V
V
mA
Ω
pF
V
IN+
= 400 mV
V
IN+
= –400 mV
V
OUT
= 0 V or V
DD2
V
I–O
= 500 Vdc
f = 1 MHz
V
I–O
= 0 Vdc
7
11
4
6
*All typicals are at the nominal operating conditions of V
IN+
= 0 V, V
IN–
= 0 V, T
A
= 25˚C, V
DD1
= 5 V and V
DD2
= 5 V.
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