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
| Analog to Digital Converters |
| Document | note |
| AD574A: Complete 12-Bit A/D Converter Data Sheet (Rev. B) | PDF 380 kB |
| AD574A: Military Data Sheet |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| 5962-85127013A Production | LCC:CER LEADLESS CHIP CARR | OTH 42 | -55 to 125C | 381.21 | 340.87 | N |
| 5962-8512701XA Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 335.98 | 300.93 | N |
| 5962-85127023A Production | LCC:CER LEADLESS CHIP CARR | OTH 42 | -55 to 125C | 243.49 | 217.04 | N |
| 5962-8512702XA Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 223.52 | 200.12 | N |
| AD574AJD Production | 28 ld Side-Brazed CerDIP | OTH 13 | 0 to 70C | 37.45 | 36.18 | N |
| AD574AJDZ Production | 28 ld Side-Brazed CerDIP | OTH 13 | 0 to 70C | 34.66 | 33.48 | Y |
| AD574AJN Production | 28 ld PDIP (600mil) | OTH 13 | 0 to 70C | 30.58 | 20.51 | N |
| AD574AJNZ Production | 28 ld PDIP (600mil) | OTH 13 | 0 to 70C | 31.88 | 17.25 | Y |
| AD574AJP Production | PLCC:PLASTIC LEAD CHIP CAR | OTH 39 | 0 to 70C | 29.15 | 19.57 | N |
| AD574AJP-REEL Contact ADI | PLCC:PLASTIC LEAD CHIP CAR | REEL 750 | 0 to 70C | 0 | 0 | N |
| AD574AJPZ Production | PLCC:PLASTIC LEAD CHIP CAR | OTH 39 | 0 to 70C | 28.83 | 19.38 | Y |
| AD574AJPZ-REEL Production | PLCC:PLASTIC LEAD CHIP CAR | REEL 750 | 0 to 70C | 0 | 19.38 | Y |
| AD574AKD Production | 28 ld Side-Brazed CerDIP | OTH 13 | 0 to 70C | 46.75 | 39.36 | N |
| AD574AKN Production | 28 ld PDIP (600mil) | OTH 13 | 0 to 70C | 40.47 | 27.6 | N |
| AD574AKNZ Production | 28 ld PDIP (600mil) | OTH 13 | 0 to 70C | 34.04 | 23.23 | Y |
| AD574AKP Production | PLCC:PLASTIC LEAD CHIP CAR | OTH 39 | 0 to 70C | 32.62 | 28.95 | N |
| AD574AKPZ Production | PLCC:PLASTIC LEAD CHIP CAR | OTH 39 | 0 to 70C | 32.29 | 28.67 | Y |
| AD574ALD Production | S/B OR B/B CERAMIC DIP | OTH 13 | 0 to 70C | 59.15 | 57.21 | N |
| AD574ALNZ Production | 28 ld PDIP (600mil) | OTH 13 | 0 to 70C | 48.73 | 42.34 | Y |
| AD574ASD Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 104.6 | 92.99 | N |
| AD574ASD/883B Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 146.09 | 130.16 | N |
| AD574ASE/883B Production | LCC:CER LEADLESS CHIP CARR | OTH 42 | -55 to 125C | 159.36 | 142.05 | N |
| AD574ATD Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 149.82 | 133.03 | N |
| AD574ATD/883B Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 203.19 | 181.93 | N |
| AD574ATE/883B Production | LCC:CER LEADLESS CHIP CARR | OTH 42 | -55 to 125C | 221.35 | 197.31 | N |
| AD574AUD Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 213.09 | 189.85 | N |
| AD574AUD/883B Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 290.84 | 260.29 | N |
| AD574AUE/883B Production | LCC:CER LEADLESS CHIP CARR | OTH 42 | -55 to 125C | 346.55 | 309.88 | N |
| JM38510/14001BXA Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 423.49 | 379.73 | N |
| JM38510/14002BXA Production | 28 ld Side-Brazed CerDIP | OTH 13 | -55 to 125C | 257.13 | 228.72 | N |
