Purchase AD574A*, In-stock AD574A* From SeekIC.
Part Number: AD574A*
Description: The AD574A is a complete 12-bit successive-approximation analog-to-digital converter with 3-state outp...
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AD574A*
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DataSheet
General Description
AD574A* General Description
The AD574A is a complete 12-bit successive-approximation analog-to-digital converter with 3-state output buffer circuitry for direct interface to an 8- or 16-bit microprocessor bus. A high precision voltage reference and clock are included on-chip, and the circuit guarantees full-rated performance without external circuitry or clock signals.
The AD574A design is implemented using Analog Devices'Bipolar/I2L process, and integrates all analog and digital functions on one chip. Offset, linearity and scaling errors are minimized by active laser-trimming of thin-film resistors at the wafer stage. The voltage reference uses an implanted buried Zener for low noise and low drift. On the digital side, I2L logic is used for the successive-approximation register, control circuitry and 3-state output buffers.
The AD574A is available in six different grades. The AD574AJ, K, and L grades are specified for operation over the 0°C to +70°C temperature range. The AD574AS, T, and U are specified for the 55°C to +125°C range. All grades are available in a 28-pin hermetically-sealed ceramic DIP. Also, the J, K, and L grades are available in a 28-pin plastic DIP and PLCC, and the J and K grades are available in ceramic LCC.
The S, T, and U grades in ceramic DIP or LCC are available with optional processing to MIL-STD-883C Class B; the T and U grades are available as JAN QPL. The Analog Devices' Military Products Databook should be consulted for details on/883B testing of the AD574A.
AD574A* Maximum Ratings
VCC to Digital Common . . . . . . . . . . . . . . . . . ........................................................... 0 V to +16.5 V
VEE to Digital Common . . . . . . . . . . . . . . . . . . ......................................................... 0 V to 16.5 V
VLOGIC to Digital Common . . . . . . . . . . . . . . . . . ........................................................... 0 V to +7 V
Analog Common to Digital Common . . . . . . . . . . . . ............................................................ . . ±1 V
Control Inputs (CE, CS, AO 12/8, R/C) to Digital Common . . . . . . . . . . . .0.5 V to VLOGIC + 0.5 V
Analog Inputs (REF IN, BIP OFF, 10 VIN) to Analog Common . . . . . . . . . . . . . . . . . . . . .VEE to VCC
20 VIN to Analog Common . . . . . . . . . . . . . . . . . . . .......................................................... . . ±24 V
REF OUT . . . . . . . . . . . . . . . . . ............................................................ Indefinite Short to Common
Momentary Short to VCC
Chip Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................ 175°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................ 825 mW
Lead Temperature (Soldering, 10 sec). . . . . . . . . . . . . ......................................................+300°C
Storage Temperature (Ceramic) . . . . . . . . . .....................................................65°C to +150°C
(Plastic) . . . . . . . . . . . . . . . . . . . . . . . . . . .......................................................25°C to +100°C
VEE to Digital Common . . . . . . . . . . . . . . . . . . ......................................................... 0 V to 16.5 V
VLOGIC to Digital Common . . . . . . . . . . . . . . . . . ........................................................... 0 V to +7 V
Analog Common to Digital Common . . . . . . . . . . . . ............................................................ . . ±1 V
Control Inputs (CE, CS, AO 12/8, R/C) to Digital Common . . . . . . . . . . . .0.5 V to VLOGIC + 0.5 V
Analog Inputs (REF IN, BIP OFF, 10 VIN) to Analog Common . . . . . . . . . . . . . . . . . . . . .VEE to VCC
20 VIN to Analog Common . . . . . . . . . . . . . . . . . . . .......................................................... . . ±24 V
REF OUT . . . . . . . . . . . . . . . . . ............................................................ Indefinite Short to Common
Momentary Short to VCC
Chip Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................ 175°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................ 825 mW
Lead Temperature (Soldering, 10 sec). . . . . . . . . . . . . ......................................................+300°C
Storage Temperature (Ceramic) . . . . . . . . . .....................................................65°C to +150°C
(Plastic) . . . . . . . . . . . . . . . . . . . . . . . . . . .......................................................25°C to +100°C
AD574A* Features
Complete 12-Bit A/D Converter with Reference and Clock
8- and 16-Bit Microprocessor Bus Interface
Guaranteed Linearity Over Temperature
08C to +708C AD574AJ, K, L
558C to +1258C AD574AS, T, U
No Missing Codes Over Temperature
35 ms Maximum Conversion Time
Buried Zener Reference for Long-Term Stability and Low Gain T.C. 10 ppm/8C max AD574AL
12.5 ppm/8C max AD574AU
Ceramic DIP, Plastic DIP or PLCC Package
Available in Higher Speed, Pinout-Compatible Versions (15 ms AD674B, 80 ms AD774B; 10 ms (with SHA) AD1674)
Available in Versions Compliant with MIL-STD-883 and JAN QPL
AD574A* Connection Diagram
AD500-9
PDF/DataSheet Download
- Datasheet: AD500-9
- File Size: 220693 KB
- Manufacturer: ETC [ETC]
- Click here to Download
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