HCPL-257K-100 View Datasheet(PDF) - HP => Agilent Technologies
Part Name
Description
MFG CO.
HCPL-257K-100
HP => Agilent Technologies
'HCPL-257K-100' PDF : 12 Pages View PDF
+12 V
0.1 µF
VIN
0.1 µF
51 Ω
47 µF
1 kΩ
2.1 kΩ
100 Ω
Q1
RF
22 Ω
1N4150
D.U.T.
VCC
VO
1.2 kΩ
9.1 kΩ
Q3
Q2
VB
15 kΩ 100 Ω 470
Ω
GND
SINGLE CHANNEL TESTING,
INDEPENDENT VCC DEVICES
TRIM FOR UNITY GAIN
0.01 µF
+12 V
0.01 µF
VO
(1 MΩ, 12 pF
TEST INPUT)
Q1, Q2, Q3: 2N3904
TYPICAL LINEARITY = +3 % AT VIN = 1 VP-P
TYPICAL SNR = 50 dB
TYPICAL RF = 375 Ω
TYPICAL VO dc = 3.8 V
TYPICAL IF = 9 mA
+5 V
SET IF
20 kΩ
D.U.T.
VCC
AC INPUT
0.1 µF
560 Ω
2N3053
1.6 Vdc
0.25 VP-P ac
100 Ω
GND
COMMON
VCC DEVICES
+15 V
100 Ω
VO
Figure 8. Frequency Response.
+15
TA = 25 °C
+10
+5
INDEPENDENT
VCC DEVICES
0
-5
COMMON VCC
-10 DEVICES
-15
-20
0.1
1.0
10
100
f – FREQUENCY – MHz
PULSE GEN.
ZO = 50 Ω
tr = 5 ns
IF
IF MONITOR
100 Ω
D.U.T.
VCC
GND
+5 V
RL
VO
CL* = 50 pF
SINGLE CHANNEL
OR COMMON VCC DEVICES
10 % DUTY CYCLE
1/f < 100 µs
NOTES:
* CL INCLUDES PROBE AND STRAY WIRING CAPACITANCE.
BASE LEAD NOT CONNECTED.
*JEDEC Registered Data.
Figure 9. Switching Test Circuit.*
1-568
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