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DPAD2
LOW LEAKAGE
PICO-AMP DUAL DIODE
Linear Systems replaces discontinued Siliconix DPAD2
The DPAD2 is a low leakage Monolithic Dual Pico-Amp Diode
The DPAD2 extremely low-leakage monolithic dual
diode provides a superior alternative to conventional
diode technology when reverse current (leakage) must
be minimized. In addition the monolithic dual
construction allows excellent capacitance matching per
diode. The DPAD2 features a leakage current of -2 pA
and is well suited for use in applications such as input
protection for operational amplifiers.
DPAD2 Benefits:
ƒ Negligible Circuit Leakage Contribution
ƒ Circuit “Transparent” Except to Shunt
High-Frequency Spikes
ƒ Simplicity of Operation
DPAD2 Applications:
ƒ Op Amp Input Protection
ƒ Multiplexer Overvoltage Protection
FEATURES 
DIRECT REPLACEMENT FOR SILICONIX DPAD2 
HIGH ON ISOLATION 
EXCELLENT CAPACITANCE MATCHING 
ULTRALOW LEAKAGE 
REVERSE BREAKDOWN VOLTAGE 
REVERSE CAPACITANCE 
ABSOLUTE MAXIMUM RATINGS  
@ 25°C (unless otherwise noted) 
Maximum Temperatures 
Storage Temperature 
Operating Junction Temperature 
Maximum Power Dissipation 
Continuous Power Dissipation  
MAXIMUM CURRENT
Forward Current (Note 1) 
 
20fA 
CR ≤ 0.5pF 
≤ 2 pA 
BVR ≥ ‐45V 
Crss ≤ 2.0pF 
65°C to +150°C 
55°C to +135°C 
500mW 
50mA 
 
DPAD2 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)
SYMBOL 
CHARACTERISTICS 
MIN.  TYP. 
Click To BuyBVR  Reverse Breakdown Voltage  ‐45  ‐‐ 
MAX. 
‐‐ 
UNITS 
V 
CONDITIONS 
IR = ‐1µA 
VF 
Forward Voltage 
‐‐  0.8  1.5 
V 
IF = 1mA 
CrSS 
Total Reverse Capacitance 
‐‐  ‐‐  2.0 
pF 
VR = ‐5V, f = 1MHz 
|CR1CR2| 
Differential Capacitance (CR) 
‐‐ 
‐‐ 
0.5 
pF 
VR1 =  VR2 = ‐5V, f = 1MHz 
IR  Maximum Reverse Leakage Current  ‐‐  ‐‐ 
2 
pA 
VR = ‐ 20V 
Notes:
1. Absolute maximum ratings are limiting values above which DPAD2 serviceability may be impaired.
Available Packages:
DPAD2 in TO-72
DPAD2 available as bare die
Please contact Micross for full package and die dimensions
TO-72 (Bottom View)
Micross Components Europe
Tel: +44 1603 788967
Email: chipcomponents@micross.com
Web: http://www.micross.com/distribution
Information furnished by Linear Integrated Systems and Micross Components is believed to be accurate and reliable. However, no responsibility is assumed for its use; nor for any infringement of patents or
other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Linear Integrated Systems.
Micross Components Ltd, United Kingdom, Tel: +44 1603 788967, Fax: +44 1603788920, Email: baredie@micross.com Web: www.micross.com/distribution.aspx