High Temperature Analog Multiplexers
16-Channel Single-Ended / 8-Channel Differential
HT506 / HT507
The High Temperature HT506/HT507 monolithic multiplexers consist of sixteen analog switches, 4-bit decode for channel
selection, reference for logic switching thresholds, and enable pin for device deactivation where applications require.
These multiplexers are fabricated with Honeywell’s dielectrically isolated latch-up free high temperature (HTMOS™) linear
process. Performance is specified over the full -55 to +225ºC temperature range. Typically, parts will operate up to
+300ºC for a year, with derated performance. All parts are burned in at 250ºC. The input buffers are designed to operate
from either TTL or CMOS levels while providing a break-before-make action. The HT506 switches one of the sixteen
single-ended inputs to a common output, while the HT507 switches one of the eight differential inputs to a differential
output. These parts are available in standard pinout 28-pin DIP Ceramic Packages.
Applications
Down-Hole Oil, Gas, and Geothermal Well
Avionics
Turbine Engine Control
Industrial Process Control
Electric Power Conversion
Heavy Duty Internal Combustion Engine
FEATURES AND BENEFITS
Specified over -55 to +225 C
Designed to continuously operate for at
least 5 years at 225 C
16:1 Single-Ended or 8:1 Differential
Configuration
Enable and address inputs compatible with TTL
and/or 5V CMOS logic
10V analog input/output range (±5V or 0 to 10V)
On resistance 400Ω at 225ºC
Split and single supply capability
Output leakage less than 2.5µA at 225ºC
Break-Before-Make Switching