358RPFS MAXWELL | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 9

Technical content

All data sheets are subject to change without notice (858) 503-3000 - Fax: (858) 503-3301 - www.maxwell.com 8-Channel Fault-Protected 358 ©2004 Maxwell Technologies All rights reserved. Analog Multiplexer

02.06.04 Rev 3

FEATURES:

  • R AD-PAK® technology-hardened against natural space radi- ation  Total dose hardness: - > 50 krad (Si), depending upon space mission  Excellent Single Event Effect - SELTH > 80 MeV/mg/cm2 - SEUTH > 80 MeV/mg/cm2  Package: - 16 pin RAD-PAK® Flat Pack  All switches off with power supplies off  On channel turns OFF if overvoltage occurs  Only nanoamperes of input current under all fault condi- tions  Operates from ±4.5 to ±18V supplies  All digital inputs are TTL and CMOS compatible  Significantly reduced power consumption DESCRIPTION: Maxwells’s 358 8-Channel single-ended (1 of 8) multiplexers with fault protection features a greater than 50 krad (Si) total dose tolerance, depending upon space mission. Using a series N-channel, P-channel, N-channel structure, these multi- plexers provide significantly improved fault protection. If the power supplies to the fault-protected multiplexer are inadvert- ently turned off while input voltages are still applied, all chan- nels in the multiplexer are turned off, and only a few nanoamperes of leakage current will flow into the inputs. This protects not only the multiplexer and the circuitry driven by the multiplexer, but also protects the sensors or signal sources which drive the multiplexer. All digital inputs have logic thresh- olds of 0.8V and 2.4V, ensuring both TTL and CMOS compati- bility without requiring pullup resistors. Break-before-make operation is guaranteed. Power supply currents have been reduced and typical power dissipation is less than 2 mW. Maxwell Technologies' patented R AD-PAK® packaging technol- ogy incorporates radiation shielding in the microcircuit pack- age. It eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or a space mission. In a GEO orbit, Rad-Pak® provides true greater than 50 krad (Si) total radiation dose tolerance, dependent upon space mission. This product is available with packaging and screening up to Class S. Logic Diagram

TABLE 1. PINOUT DESCRIPTION

2 Enable Enable Inputs

8 OUT Output-bidirectional

14 GND Ground

TABLE 2. 358 ABSOLUTE MAXIMUM RATINGS

TABLE 3. 358 ELECTRICAL CHARACTERISTICS

  1. The value shown is the steady state value. The transient leakage is typically 10 µ A.
  2. When the analog signal exceeds +13.5V or -12V the blocking action of the gate structure goes into operation. Only leakage cur-

rents flow and the channel on resistance rises to infinity.

  1. Digital input leakage is primarily due to the clamp diodes. Typical leakage is less than 1 nA @ +25°C.
  2. Electrical characteristics, such as ON Resistance, will change when power supplies other than ±15V are used.

TABLE 3. 358 ELECTRICAL CHARACTERISTICS

FIGURE 1. INPUT LEAKAGE VS. INPUT VOLTAGE WITH V+ = V- = 0V FIGURE 2. OFF CHANNEL LEAKAGE CURRENT VS. INPUT VOLTAGE WITH ±15V SUPPLIES FIGURE 3. OUTPUT LEAKAGE VS. OFF CHANNEL OVERVOLTAGE WITH ±15V SUPPLIES

FIGURE 4. RDS(ON) VS. INPUT VOLTAGE

7All data sheets are subject to change without notice ©2004 Maxwell Technologies All rights reserved. 8-Channel Fault-Protected Analog Multiplexer 358 16-PIN RAD-PAK® FLAT PACK PACKAGE SYMBOL DIMENSIONS MIN NOM MAX A .115 .135 .150 b .015 .017 .019 c .004 .005 .007 D 0.407 .415 .423 E .275 .280 .285 E1 -- -- 0.500 E2 .150 .156 0.162 E3 .030 .062 -- e .050 BSC L .325 .335 .345 Q .020 .033 .045 S1 .005 .024 0.045 N1 6 L

8All data sheets are subject to change without notice ©2004 Maxwell Technologies All rights reserved. 8-Channel Fault-Protected Analog Multiplexer 358 Important Notice: These data sheets are created using the chip manufacturer’s published specifications. Maxwell Technologies verifies functionality by testing key parameters either by 100% testing, sample testing or characterization. The specifications presented within these data sheets represent the latest and most accurate information available to date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no responsibility for the use of this information. Maxwell Technologies’ products are not authorized for use as critical components in life support devices or systems without express written approval from Maxwell Technologies. Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Tech- nologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts.

9All data sheets are subject to change without notice ©2004 Maxwell Technologies All rights reserved. 8-Channel Fault-Protected Analog Multiplexer 358 Feature Option Details358 RP F X Screening Flow Package Radiation Feature Base Product Nomenclature Monolithic S = Maxwell Class S B = Maxwell Class B I = Industrial (testing @ -55°C, +25°C, +125°C) E = Engineering (testing @ +25°C F = Flat Pack RP = R AD-PAK® package 8-Channel Fault-Protected Ana- log Multiplexer