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MFG:AD
Part Number: ADC574A
MFG: AD
Description: The ADC574A is a 12-bit successive approximation analog-to-digital converter, utilizing state-of-the-a...
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ADC574A
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DataSheet
General Description
ADC574A General Description
The ADC574A is a 12-bit successive approximation analog-to-digital converter, utilizing state-of-the-art CMOS and laser-trimmed bipolar die custom-designed for freedom from latch-up and for optimum AC performance.It is complete with a self-contained +10V reference, internal clock, digital interface for microprocessor control, and three-state outputs.The reference circuit, containing a buried zener, is lasertrimmed for minimum temperature coefficient. The clock oscillator is current-controlled for excellent stability over temperature. Full-scale and offset errors may be externally trimmed to zero. Internal scaling resistors are provided for the selection of analog input signal ranges of 0V to +10V, 0V to +20V, ±5V, and ±10V.
The converter may be externally programmed to provide 8- or 12-bit resolution. The conversion time for 12 bits is factory set for 25s maximum. Output data are available in a parallel format from TTLcompatible three-state output buffers. Output data are coded in straight binary for unipolar input signals and bipolar offset binary for bipolar input signals.The ADC574A, available in both industrial and military temperature ranges, requires supply voltages of +5V and ±12V or ±15V. It is packaged in a 28-pin plastic DIP, and a hermetic side-brazed ceramic DIP.
ADC574A Maximum Ratings
VCC to Digital Common ......................................................... 0V to +16.5V
VEE to Digital Common .......................................................... 0V to 16.5V
VLOGIC Digital Common .............................................................. 0V to +7V
Analog Common to Digital Common .................................................... ±1V
Control Inputs (CE, CS, AO, 12/8, R/C)
to Digital Common .............................................. 0.5V to VLOGIC +0.5V
Analog Inputs (Ref In, Bipolar Offset, 10VIN )
to Analog Common ...................................................................... ±16.5V
20VIN to Analog Common .................................................................. ±24V
Ref Out .......................................................... Indefinite Short to Common,
Momentary Short to VCC
Max Junction Temperature ............................................................ +165°C
Power Dissipation ........................................................................ 1000mW
Lead Temperature (soldering,10s) ................................................. +300°C
Thermal Resistance, JA : Ceramic ................................................ 50°C/W
Plastic ................................................. 100°C/W
VEE to Digital Common .......................................................... 0V to 16.5V
VLOGIC Digital Common .............................................................. 0V to +7V
Analog Common to Digital Common .................................................... ±1V
Control Inputs (CE, CS, AO, 12/8, R/C)
to Digital Common .............................................. 0.5V to VLOGIC +0.5V
Analog Inputs (Ref In, Bipolar Offset, 10VIN )
to Analog Common ...................................................................... ±16.5V
20VIN to Analog Common .................................................................. ±24V
Ref Out .......................................................... Indefinite Short to Common,
Momentary Short to VCC
Max Junction Temperature ............................................................ +165°C
Power Dissipation ........................................................................ 1000mW
Lead Temperature (soldering,10s) ................................................. +300°C
Thermal Resistance, JA : Ceramic ................................................ 50°C/W
Plastic ................................................. 100°C/W
ADC574A Features
COMPLETE 12-BIT A/D CONVERTER
WITH REFERENCE, CLOCK, AND 8-, 12-, or 16-
BIT MICROPROCESSOR BUS INTERFACE
IMPROVED PERFORMANCE SECOND
SOURCE FOR 574A-TYPE A/D
CONVERTERS
Conversion Time: 25ms max
Bus Access Time: 150ns max
AO Input: Bus Contention During Read
Operation Eliminated
DUAL IN-LINE PLASTIC, PLCC AND HERMETIC CERAMIC
FULLY SPECIFIED FOR OPERATION ON
±12V OR ±15V SUPPLIES
NO MISSING CODES OVER
TEMPERATURE:
0°C to +75°C: ADC574AJ and K Grades
55°C to +125°C: ADC574ASH, TH
WITH REFERENCE, CLOCK, AND 8-, 12-, or 16-
BIT MICROPROCESSOR BUS INTERFACE
IMPROVED PERFORMANCE SECOND
SOURCE FOR 574A-TYPE A/D
CONVERTERS
Conversion Time: 25ms max
Bus Access Time: 150ns max
AO Input: Bus Contention During Read
Operation Eliminated
DUAL IN-LINE PLASTIC, PLCC AND HERMETIC CERAMIC
FULLY SPECIFIED FOR OPERATION ON
±12V OR ±15V SUPPLIES
NO MISSING CODES OVER
TEMPERATURE:
0°C to +75°C: ADC574AJ and K Grades
55°C to +125°C: ADC574ASH, TH
ADC574A Connection Diagram
ADC574AJH
PDF/DataSheet Download
- Datasheet: ADC574AJH
- File Size: 105557 KB
- Manufacturer: BURR-BROWN [Burr-Brown Corporation]
- Click here to Download
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