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ADC-318A

ETC
Part Number ADC-318A
Manufacturer ETC
Description 8-Bit/ 120MHz and 140MHz Full-Flash A/D Converter
Published Mar 24, 2005
Detailed Description ® ® ADC-318, ADC-318A 8-Bit, 120MHz and 140MHz Full-Flash A/D Converter FEATURES • • • • • • • • Low power dissipatio...
Datasheet PDF File ADC-318A PDF File

ADC-318A
ADC-318A

Overview
® ® ADC-318, ADC-318A 8-Bit, 120MHz and 140MHz Full-Flash A/D Converter FEATURES • • • • • • • • Low power dissipation (960mW max.
) TTL compatible output Diff.
/Integral nonlinearity (±½LSB max.
) 1:2 Demultiplexed straight output programmable 2:1 Frequency divided TTL clock output with reset Surface mount package Selectable Input Logic (TTl, ECL, PECL) +5V or ±5V Power Supply Operation INPUT/OUTPUT CONNECTIONS PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 FUNCTION –DVs (Digital) REF.
BOTTOM (VRB) ANALOG GROUND REF.
MID POINT (VRM1) +AVS (Analog) ANALOG IN (VIN) REF.
MID POINT (VRM2) +AVS (Analog) REF.
MID POINT (VRM3) ANALOG GROUND REF.
TOP (VRT) DIGITAL GROUND 3 A/D CLOCK ECL/PECL A/D CLOCK ECL/PECL A/D CLOCK TTL NO CONNECTION NO CONNECTION NO CONNECTION +DVS2 (Digital) DIGITAL GROUND 2 B BIT 8 (LSB) B BIT 7 B BIT 6 B BIT 5 PIN 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 FUNCTION RSET ECL/PECL RSET ECL/PECL RSET TTL SELECT INV TTL CLOCK OUT +DVS2 (Digital) DIGITAL GROUND 2 A BIT 1 (MSB) A BIT 2 A BIT 3 A BIT 4 A BIT 5 A BIT 6 A BIT 7 A BIT 8 (LSB) DIGITAL GROUND 2 +DVS2 (Digital) +DVS1 (Digital) DIGITAL GROUND 1 B BIT 1 (MSB) B BIT 2 B BIT 3 B BIT 4 GENERAL DESCRIPTION The ADC-318 and ADC-318A are 8 bit monolithic bipolar, full flash A/D converters.
Though they have high, 120MHz (ADC-318) and 140MHz (ADC-318A), sampling rates, their input logic level, including the start convert pulse, is TTL, ECL and PECL compatible.
Digital outputs are also TTL compatible and allow a straight output or a programmable 1:2 de-multiplexed output.
The ADC-318 and ADC-318A feature ±1/2 LSB max.
integral and differential non-linearity, +5V single or ±5V dual power supply operation, a low 960mW maximum power dissipation, 150MHz wide analog input range and excellent temperature coefficient in a small 48 pin QFP package.
The start convert pulse can have a 50% duty cycle.
The ADC-318 and ADC-318A offer low cost, easy to use functionality...


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