DPAD/SSTDPAD Series
Vishay Siliconix
Dual Low-Leakage Pico–Amp Diodes
DPAD1
DPAD5
DPAD50
PRODUCT SUMMARY
Part Number
DPAD1
DPAD5/SSTDPAD5
DPAD50
SSTDPAD100
SSTDPAD5
SSTDPAD100
I
R
Max (pA)
–1
–5
–50
–100
FEATURES
D
Ultralow Leakage: DPAD1 <1 pA
D
Ultralow Capacitance: DPAD1 <0.8 pF
BENEFITS
D
Negligible Circuit Leakage
Contribution
D
Circuit “Transparent” Except to Shunt
High-Frequency Spikes
APPLICATIONS
D
Op Amp Input Protection
D
Multiplexer Overvoltage
Protection
DESCRIPTION
The DPAD/SSTDPAD series of extremely low-leakage diodes
provides a superior alternative to conventional diode
technology when reverse current (leakage) must be
minimized. These devices feature leakage currents ranging
from –1 pA (DPAD1) to –100 pA (SSTDPAD100) to support a
wide range of applications.
The low-cost, compact, narrow-body SO-8 (SSTDPAD)
package allows maximum circuit performance. Tape- and-reel
options are avaliable for automated assembly (see Packaging
Information).
The TO-78 and TO-71 (DPAD) hermetically sealed metal cans
are available with full military processing per MIL-S-19500
(see Military Information).
TO-78
TO-71
Modified
C
1
A
2
1
5
C
1
1
Narrow Body SOIC
C
1
C
1
A
1
NC
1
2
3
4
Top View
SSTDPAD5
SSTDPAD100
8
7
6
5
NC
A
2
C
2
C
2
A
1
A
2
4
2
3
Case*
Substrate
Top View
DPAD1
4
C
2
A
1
*Case and Pin 3
must be floating
Top View
DPAD5
DPAD50
2
3
C
2
Document Number: 70340
S-04029—Rev. C, 04-Jun-01
www.vishay.com
5-1
DPAD/SSTDPAD Series
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
a
Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55 to 150_C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . –55 to 150_C
Lead Temperature (
1
/
16
” from case for 10 sec.) . . . . . . . . . . . . . . . . . . . 300_C
Total Device Dissipation
b
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mW
Notes:
a. T
A
= 25_C unless otherwise noted.
b. Derate 4 mW/_C at 25_C.
SPECIFICATIONS (T
A
= 25_C UNLESS OTHERWISE NOTED)
Limits
Parameter
Static
DPAD1
DPAD5/SSTDPAD5
Reverse Current
I
R
V
R
= –20 V
DPAD5/SSTDPAD5DPAD50
SSTDPAD100
DPAD1
Reverse Breakdown Voltage
BV
R
V
F
I
R
= –1
m
mA
I
F
= 1 mA
DPAD5/DPAD50
SSTDPAD5/SSTDPAD100
Forward Voltage Drop
–45
–45
–30
–0.2
–2
–5
–10
–60
–55
–50
0.8
1.5
V
–1
–5
–50
–100
pA
Symbol
Test Conditions
Min
Typ
a
Max
Unit
Dynamic
DPAD1
Reverse Capacitance
C
R
V
R
= –5V, f = 1 MHz
DPAD5/DPAD50
SSTDPAD5/SSTDPAD100
Differential Capacitance
C
R1
– C
R2
V
R1
= V
R2
= –5 V
f = 1 MHz
DPAD1
All Others
0.6
1.0
2.0
0.07
0.1
0.8
2.0
4.0
0.2
0.5
pF
Notes:
a. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
TYPICAL CHARACTERISTICS (T
A
= 25_C UNLESS OTHERWISE NOTED)
Reverse Current vs. Reverse Voltage
–1000
DPAD/SSTDPAD5
V
R
= –20 V
I
R
@ 125_C
–100
DPAD1
I
R
(pA)
I
R
(pA)
–10
DPAD/SSTDPAD5
–100
Reverse Current vs. Temperature
–10
–1
DPAD1
DPAD/SSTDPAD5
–1
I
R
@ 25_C
DPAD1
–0.1
0
–6
–12
V
R
(V)
–18
–24
–30
–0.01
–55
–35
–15
5
25
45
65
85
105 125
–0.1
T
A
– Temperature (_C)
www.vishay.com
5-2
Document Number: 70340
S-04029—Rev. C, 04-Jun-01
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
www.vishay.com
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