LC2MOS
Quad SPST Switches
ADG211A/ADG212A
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
44 V supply maximum rating
±15 V analog signal range
Low RON: 115 Ω maximum
Low leakage: 0.5 nA typical
Break-before-make switching
Single supply operation possible
Extended plastic temperature range: −40°C to +85°C
TTL/CMOS compatible
Available in 16-lead PDIP/SOIC and 20-pead PLCC packages
Pin compatible to DG211/DG212
ADG211A
S1
IN1
D1
S2
IN2
D2
S3
IN3
D3
S4
IN4
NOTES
1. SWITCHES SHOWN FOR A LOGIC 1 INPUT.
10950-001
D4
Figure 1.
ADG212A
S1
IN1
D1
S2
IN2
D2
S3
IN3
D3
S4
IN4
NOTES
1. SWITCHES SHOWN FOR A LOGIC 1 INPUT.
10950-002
D4
Figure 2.
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG211A and ADG212A are monolithic CMOS devices
comprising four independently selectable switches. They are
designed on an enhanced LC2MOS process, which gives an
increased signal handling capability of ±15 V. These switches
also feature high switching speeds and low RON.
1.
The ADG211A and ADG212A consist of four SPST switches.
They differ only in that the digital control logic is inverted. In
multiplexer applications, all switches exhibit break-before-make
switching action when driven simultaneously. Inherent in the
design is low charge injection for minimum transients when
switching the digital inputs.
Rev. C
2.
3.
Extended Signal Range.
These switches are fabricated on an enhanced LC2MOS
process, resulting in high breakdown and an increased
analog signal range of ±15 V.
Single Supply Operation.
For applications where the analog signal is unipolar (0 V to
15 V), the switches can be operated from a single 15 V
supply.
Low Leakage.
Leakage currents in the range of 500 pA make these
switches suitable for high precision circuits. The added
feature of break-before-make allows for multiple outputs
to be tied together for multiplexer applications while
keeping leakage errors to a minimum.
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