AD574A Complete 12-Bit A/D Converter

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.

Features and Benefits
  • Complete 12-Bit A/D Converter with Reference and Clock
  • 8- and 16-Bit Microprocessor Bus Interface
  • Guaranteed Linearity Over Temperature
    0°C to +70°C – AD574AJ, K, L
    –55°C to +125°C – AD574AS, T, U
  • No Missing Codes Over Temperature
  • 35 µs Maximum Conversion Time
  • Buried Zener Reference for Long-Term Stability and Low Gain T.C. 10 ppm/°C max AD574AL 12.5 ppm/°C max AD574AU
  • Ceramic DIP, Plastic DIP or PLCC Package
  • Available in Higher Speed, Pinout-Compatible Versions (15 µs AD674B, 80 µs AD774B; 10 µs (with SHA) AD1674)
  • Available in Versions Compliant with MIL-STD-883 and JAN QPL
Analog to Digital Converters
Data Sheets
Documentnote
AD574A: Complete 12-Bit A/D Converter Data Sheet (Rev. B)PDF 380 kB
AD574A: Military Data Sheet
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
5962-85127013A ProductionLCC:CER LEADLESS CHIP CARROTH 42-55 to 125C381.21340.87N
5962-8512701XA Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C335.98300.93N
5962-85127023A ProductionLCC:CER LEADLESS CHIP CARROTH 42-55 to 125C243.49217.04N
5962-8512702XA Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C223.52200.12N
AD574AJD Production28 ld Side-Brazed CerDIPOTH 130 to 70C37.4536.18N
AD574AJDZ Production28 ld Side-Brazed CerDIPOTH 130 to 70C34.6633.48Y
AD574AJN Production 28 ld PDIP (600mil)OTH 130 to 70C30.5820.51N
AD574AJNZ Production 28 ld PDIP (600mil)OTH 130 to 70C31.8817.25Y
AD574AJP ProductionPLCC:PLASTIC LEAD CHIP CAROTH 390 to 70C29.1519.57N
AD574AJP-REEL Contact ADIPLCC:PLASTIC LEAD CHIP CARREEL 7500 to 70C00N
AD574AJPZ ProductionPLCC:PLASTIC LEAD CHIP CAROTH 390 to 70C28.8319.38Y
AD574AJPZ-REEL ProductionPLCC:PLASTIC LEAD CHIP CARREEL 7500 to 70C019.38Y
AD574AKD Production28 ld Side-Brazed CerDIPOTH 130 to 70C46.7539.36N
AD574AKN Production 28 ld PDIP (600mil)OTH 130 to 70C40.4727.6N
AD574AKNZ Production 28 ld PDIP (600mil)OTH 130 to 70C34.0423.23Y
AD574AKP ProductionPLCC:PLASTIC LEAD CHIP CAROTH 390 to 70C32.6228.95N
AD574AKPZ ProductionPLCC:PLASTIC LEAD CHIP CAROTH 390 to 70C32.2928.67Y
AD574ALD ProductionS/B OR B/B CERAMIC DIPOTH 130 to 70C59.1557.21N
AD574ALNZ Production 28 ld PDIP (600mil)OTH 130 to 70C48.7342.34Y
AD574ASD Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C104.692.99N
AD574ASD/883B Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C146.09130.16N
AD574ASE/883B ProductionLCC:CER LEADLESS CHIP CARROTH 42-55 to 125C159.36142.05N
AD574ATD Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C149.82133.03N
AD574ATD/883B Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C203.19181.93N
AD574ATE/883B ProductionLCC:CER LEADLESS CHIP CARROTH 42-55 to 125C221.35197.31N
AD574AUD Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C213.09189.85N
AD574AUD/883B Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C290.84260.29N
AD574AUE/883B ProductionLCC:CER LEADLESS CHIP CARROTH 42-55 to 125C346.55309.88N
JM38510/14001BXA Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C423.49379.73N
JM38510/14002BXA Production28 ld Side-Brazed CerDIPOTH 13-55 to 125C257.13228.72N
Reference Materials
AD574A: Complete 12-Bit A/D Converter Data Sheet (Rev. B) ad574a
AD574A: Military Data Sheet ad574a
JAN to Generic Cross Reference ad574a
MS-2210:高速ADC的电源设计 ad9861