LSDPAD20
LOW LEAKAGE
PICO-AMP DUAL DIODE
Linear Systems replaces discontinued Siliconix LSDPAD20
The LSDPAD20 is a low leakage Monolithic Dual Pico-Amp Diode
The LSDPAD20 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 LSDPAD20 features a leakage current of -
20 pA and is well suited for use in applications such as
input protection for operational amplifiers.
FEATURES
DIRECT REPLACEMENT FOR SILICONIX LSDPAD20
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
∆C
R
≤ 0.5pF
≤ 20 pA
BV
R
≥ ‐45V
C
rss
≤ 2.0pF
LSDPAD20 Benefits:
Negligible Circuit Leakage Contribution
Circuit “Transparent” Except to Shunt
High-Frequency Spikes
Simplicity of Operation
‐65°C to +150°C
‐55°C to +135°C
500mW
50mA
LSDPAD20 Applications:
Op Amp Input Protection
Multiplexer Overvoltage Protection
LSDPAD20 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)
SYMBOL
CHARACTERISTICS
MIN.
TYP.
BV
R
Reverse Breakdown Voltage
‐45
‐‐
V
F
Forward Voltage
‐‐
0.8
C
rSS
Total Reverse Capacitance
‐‐
‐‐
|C
R1
‐C
R2
|
Differential Capacitance (∆C
R
)
‐‐
‐‐
I
R
Maximum Reverse Leakage Current
‐‐
‐‐
Click To Buy
MAX.
‐‐
1.5
2.0
0.5
‐20
UNITS
V
V
pF
pF
pA
TO-72 (Bottom View)
CONDITIONS
I
R
= ‐1µA
I
F
= 1mA
V
R
= ‐5V, f = 1MHz
V
R1
= V
R2
= ‐5V, f = 1MHz
V
R
= ‐ 20V
Notes:
1. Absolute maximum ratings are limiting values above which LSDPAD20 serviceability may be impaired.
Available Packages:
LSDPAD20 in TO-72
LSDPAD20 available as bare die
Please contact Micross for full package and die dimensions
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
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