DESCRIPTION
The Comstron Model PSC-4490 is a Nyquist bandpass filter used in a DAC( digital to analog converter). The purpose of the filter is to normalize the amplitude response of an input o(Sin x)/xo signal spectrum, and to reject unwanted frequencies while maintaining low group delay variation in the passband. The equalizing shape over the passband is |x/sin x|2 where where x = (∮f)/fs and fs=50.0 MSPS (sampling rate).

FEATURES
*INVERSE SINC, SQUARE ROOT NYQUIST (ARBITRARY SHAPING AVAILABLE)
*FLAT GROUP DELAY
*SHARP ATTENUATION
*COMPACT SIZE
*FREQUENCY RANGE; 1 MHZ - 3000 MHZ

 

PSC-4490 - 22.6 MHZ NYQUIST BANDPASS FILTER FOR DIGITAL TO ANALOG CONVERTER

General Description
Aeroflex’s ACT8502 is a radiation hardened, multi-chip 48 channel multiplexer MCM (multi-chip
module) with ESD protection for use in space applications.
All channel inputs have electrostatic discharge protection.
The ACT8502 has been specifically designed to meet exposure to radiation environments.
The multiplexer is available in a 96 lead High Temperature Co-Fired Ceramic (HTCC) Quad Flatpack QFP) and is guaranteed operational from -55°C to +125°C.
Available screened in accordance with MIL-PRF-38534, the ACT8502 is ideal for demanding military and space applications.

Features
*Radiation Environment
*Radiation 300K(Si) Total Dose
*No Latch-Up or SEE to 120MeV/cm2/mg
*Full Military Temperature Range
*Low Power Consumption < 90mW
*48 Channels Provided by Six (6) HS-1840RH Multiplexers
*One Address Bus (A0-3) and Three Enable Lines
*All Channel Inputs protected by ±20V Transorbs
*Fast Access Time 1500ns
*±35V Input Over Voltage Protection (Power On or Off)
*Break-Before-Make Switching
*High Analog Input Impedance (Power On or Off)
*Dielectrically Isolated Device Islands
*No Latch-Up
*Packaging – Hermetic Ceramic Quad Flat Pack
*96 Leads, 1.32"Sq x .20"Ht Quad Flat Pack
*Typical Weight 15 grams
*DESC SMD Pending

Organization and Application
The ACT8502 consists of six 16 channel muxes arranged as shown in the Block Diagram.
The ACT8502 design is inherently Radiation Hard due to the HS1840RH Multiplexers as well as
Microsemi Corp.
Transient Suppressors (Reference Microsemi MicroNotes Series 050 - page 14).
48 channels addressable by Bus A0~A3, in Three 16 channel blocks, each block enabled
separately.
Each block connects the addressed channel to two outputs, "Output" and "Current".
This technique enables selecting and reading a remote resistive sensor without the MUX
resistance being part of the measurement.
For grounded sensors, this is done by passing current to the sensor by means of the "Current" pin and reading the resultant voltage (proportional to the sensor resistance) at the "Output" pin.
NOTE: It is recommended that all "NC or "no connect pin", be grounded.
This eliminates or minimizes any ESD or static buildup.

ACT8502-S
ACT8502
ACT8502-7
 

ACT8502-Radiation Hardened & ESD Protected 48-Channel Analog Multiplexer Module

Description
 The Kenet KAD2708L is the industry’s lowest power, 8- bit, high performance Analog-to-Digital converter.
The converter runs at sampling rates up to 350MSPS, and is fabricated with Kenet’s proprietary FemtoCharge® CMOS technology.
Users can now obtain industry-leading SNR and SFDR specifications while nearly halving power consumption.
Sampling rates of 275, 210, 170 and 105MSPS are also available in the same pin-compatible package and in versions with 10-bit resolution.
All are available in 68-pin RoHS-compliant QFN packages with exposed paddle.
Performance is specified over the full industrial temperature range (-40 to +85°C).

Features
* On-chip reference
* Internal track and hold
* 1.5VPP differential input voltage
* 600MHz analog input bandwidth
* Two’s complement or binary output
* Over-range indicator
* Selectable ÷2 Clock Input
* LVDS compatible outputs

Applications
* High-Performance Data Acquisition
* Portable Oscilloscope
* Medical Imaging
* Cable Head Ends
* Power-Amplifier Linearization
* Radar and Satellite Antenna Array Processing
* Broadband Communications
* Local Multipoint Distribution System (LMDS)
* Communications Test Equipment

Key Specifications
* SNR of 48.8dB at Nyquist
* SFDR of 64dBc at Nyquist
* Power consumption ≤ 320mW at fS = 350MSPS

KAD2708L-27Q68
KAD2708L-21Q68
KAD2708L-17Q68
KAD2708L-10Q68
KAD2708L-35Q68

 

KAD2708L - 8-Bit, 350MSPS Analog-to-Digital Converter

DESCRIPTION
 The UPC842GR-9LG, UPC4742GR-9LG are a high speed version of the operational amplifier UPC1251GR-9LG, UPC1251MP-KAA, UPC358GR-9LG for general single power supply use with high speed pulse response and high stabilization.
A high speed PNP transistor is used in the circuit which improves the characteristics such as a slew rate, gain-bandwidth product, stabilization of the withstand load capacitance, with no crossover distortion compared to UPC1251GR-9LG, UPC 1251MP-KAA, UPC358GR-9LG.
Therefore, UPC842GR-9LG, UPC4742GR-9LG can be used in a wide range of application circuits for single power supply AC amplifier, active filters, line driver and an amplifier for light receiving element etc.
The UPC842GR-9LG which expands temperature type is suited for wide operating ambient temperature use, and UPC4742GR-9LG is used for general purposes.
UPC844GR-9LG, UPC4744GR-9LG which are quad types with the same circuit configuration are also available as series of operational amplifiers.

FEATURES
• Slew Rate (AV = +1) 7 V/μs (TYP.)
• Stability to capacitive loads (load capacity, 1000 pF) (V+ = +5 V, V− = GND)
• Internal frequency compensation
• Gain Band Width Product 3.5 MHz (TYP.)
• Output short-circuit protection
• Input Offset Voltage ±2 mV (TYP.)
• A pin connection (pin compatible) of a standard dual operational
• Input Offset Current ±6 nA (TYP.) amplifier.
• Wide operating ambient temperature range
UPC842GR-9LG: TA = −40 to +125°C, UPC4742GR-9LG: TA = −40 to +85°C

UPC842GR-9LG-E1-A
UPC842GR-9LG-E2-A
UPC4742GR-9LG-E1-A
UPC4742GR-9LG-E2-A

 

UPC842GR-9LG - BIPOLAR ANALOG INTEGRATED CIRCUIT

DESCRIPTION
 The M74HC4852 is a dual four-channel analog MULTIPLEXER/DEMULTIPLEXER fabricated
with silicon gate C2MOS technology.
It is pin to pin compatible with the equivalent to standard HC4052 and MC14052, but features injection current effect control.
This makes this device especially suited for usage in automotive applications where voltages in excess of normal logic voltage are common.
The injection current effect control allows signals at disabled input channels to exceed the supply voltage range or go down ground without affecting the signal of the enabled analog channel.
This eliminates the need for external diode-resistor networks typically used to keep the analog channel signals within the supply voltage range.
This analog switch is bidirectional and digitally controlled.
It has two binary control inputs A and B to select 1 of 4 to be turned on, and connected to the output, and a INH input to disable all channels.
All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

* LOW POWER DISSIPATION: ICC = 2mA(MAX.) at TA=25°C
* INJECTION CURRENT PROTECTION: VDOUT<1mV at VCC=5V IIN≤1mA RS≤3.9KW
* "ON"RESISTANCE at TA=25°C:
- 215W TYP. (VCC = 3.0V)
- 150W TYP. (VCC = 4.5V)
- 160W TYP. (VCC = 6V)
* FAST SWITCHING: tpd = 8.6ns (TYP.) at TA = 25 °C, VCC = 4.5V
* WIDE OPERATING SUPPLY VOLTAGE RANGE: VCC = 2V TO 6V
* HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.)
* PIN AND FUNCTION COMPATIBLE WITH SERIES 4052, 4852
* LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17)
* ESD PERFORMANCE:
- HBM > 2000V (JESD22-A114B);
- MM > 200V

M74HC4852RM13TR
M74HC4852MWR
M74HC4852TTR  

M74HC4852 - DUAL 4:1 CHANNEL ANALOG MUX/DEMUX WITH INJECTION CURRENT PROTECTION