High Temperature, High Voltage,
Latch-Up Proof, 8-Channel Multiplexer
Data Sheet
ADG5298
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Extreme high temperature operation up to 210°C
Latch-up proof
JESD78D Class II rating
ADG5298
S1
Low leakage
Ultralow capacitance and charge injection
Source capacitance, off: 2.9 pF at 15 V dual supply
Drain capacitance, off: 34 pF at 15 V dual supply
Charge injection: 0.2 pC at 15 V dual supply and
+12 V single supply
D
S8
Low on resistance: 290 Ω typical for dual supply at 210°C
9 V to 22 V dual-supply operation
1-OF-8
DECODER
9 V to 40 V single-supply operation
48 V supply maximum rating
Fully specified at 15 V, 20 V, +12 V, and +36 V
A0 A1 A2 EN
Figure 1.
V
SS to VDD analog signal range
APPLICATIONS
Downhole drilling and instrumentation
Avionics
Heavy industrial
High temperature environments
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG5298 is a latch-up proof, monolithic, complementary
metal-oxide semiconductor (CMOS) analog multiplexer designed
for operation up to 210°C. The ADG5298 switches one of eight
inputs to a common output, as determined by the 3-bit binary
address lines, A0, A1, and A2.
1. Trench Isolation Guards Against Latch-Up and Minimizes
Parasitic Leakage.
A dielectric trench separates the P channel and N channel
transistors to prevent latch-up even under severe overvoltage
conditions.
An EN input enables or disables the device. When EN is disabled,
all channels switch off. The ultralow capacitance and charge
injection of this switch makes it an ideal solution for data
acquisition and sample-and-hold applications, where low glitch
and fast settling are required.
The switch conducts equally well in both directions when on,
and it has an input signal range that extends to the power supplies.
In the off condition, signal levels up to the supplies are blocked.
This multiplexer is available in a 16-lead ceramic flat package
(FLATPACK) and a 16-lead ceramic flat package with reverse
formed gullwing leads (FLATPACK_RF). Both packages are
designed for robustness at extreme temperatures and are
qualified for up to 1000 hours of operation at the maximum
temperature rating.
2. Achieved JESD78D Class II rating.
The ADG5298 was stressed to 500 mA with a 10 ms pulse
at the maximum temperature of the device (210°C).
3. 0.2 pC Charge Injection.
4. Dual-Supply Operation.
For applications where the analog signal is bipolar, the
ADG5298 can operate from dual supplies of up to 22 ꢀ.
5. Single-Supply Operation.
For applications where the analog signal is unipolar, the
ADG5298 can operate from a single rail power supply of
up to 40 ꢀ.
6. 3 ꢀ Logic-Compatible Digital Inputs.
ꢀ
INH = 2.0 ꢀ, ꢀINL = 0.8 ꢀ.
7. No Logic Power Supply (ꢀL) Required.
The ADG5298 is a member of a growing series of high temperature
qualified products offered by Analog Devices, Inc. For a complete
selection table of available high temperature products, see the
high temperature product list and qualification data available at
www.analog.com/hightemp.
Rev. 0
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www.analog.com
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