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Numéro de référence | RHD5950 | ||
Description | 14-Bit Analog to Digital Converter | ||
Fabricant | Aeroflex Circuit Technology | ||
Logo | |||
Standard Products
RadHard-by-Design
Datasheet
RHD5950 16-Channel Multiplexed
14-Bit Analog-to-Digital Converter
www.aeroflex.com/RHDseries
January 14, 2016
FEATURES
Single power supply operation 5.0V or Dual power supply for 3.3V I/O
Radiation performance
- Total dose:
> 100krad(Si); Dose rate = 50 - 300 rads(Si)/s
- ELDRS Immune
- SEL Immune
- Neutron Displacement Damage
> 100 MeV-cm2/mg
> 1014 neutrons/cm2
16-Channel Input Multiplexer
Successive Approximation A-to-D
Level Shifting Digital Output Drivers allow interfaces to 5.0 or 3.3 volt logic
Tri-State digital outputs
Power Down (Sleep) mode
Single or continuous conversion
20us conversion period (20 clocks @ 1MHz Clock rate)
Multiplexer address is latched on first clock rising edge of a cycle
Busy and End-of-Conversion status outputs
Full military temperature range
Designed for aerospace and high reliability space applications
Packaging – Hermetic Ceramic
- 48 leads, 0.700"Sq x 0.125"Ht quad flat pack
- Weight - 6 grams max
Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.
GENERAL DESCRIPTION
Aeroflex’s RHD5950 is a radiation hardened, single supply, 16-Channel Multiplexed Analog-to-Digital
converter in a 48-pin Ceramic Quad Flat Package. The RHD5950 design uses specific circuit topology and
layout methods to mitigate total ionizing dose effects and single event latchup. It is guaranteed operational
from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534 Class K, the RHD5950 is
ideal for demanding military and space applications.
ORGANIZATION AND APPLICATION
The RHD5950 takes 16 analog sensor signals and using 4 address inputs and an enable input, selects one of
the 16 analog inputs and performs a 14-bit successive approximation analog-to-digital conversion in a
nominal period of 20 clock cycles (20uS nominal). The 14-bit digital output has a tri-state control allowing
the connection of multiple RHD5950s. This provides the ability to interface many sensor voltage readings
to the digital processor data bus. The full-scale range is determined by reference input voltages. The input
impedance of the reference/span terminals is typically a constant 4K ohms.
SCD5950 Rev G
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Pages | Pages 8 | ||
Télécharger | [ RHD5950 ] |
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