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| Complete, 12-Bit A/D Converters with Microprocessor Interface |
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| Ordering Information |
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 iBuy direct from Intersil
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 iBuy direct - out of stock
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 Request samples
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 Check distributor inventory
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Available in RoHS/Pb-Free
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Part No. |
Design-In
Status |
Temp. |
Package |
MSL |
Price
US $ |
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| HI1-674AKD-5 |
Active |
See Datasheet |
28 Ld SBDIP |
N/A |
38.15 |
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| HI3-674AJN-5 |
Active |
See Datasheet |
28 Ld PDIP |
N/A |
14.87 |
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| HI3-674AKN-5 |
Active |
See Datasheet |
28 Ld PDIP |
N/A |
26.43 |
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| HI3-674AJN-5Z |
Coming
Soon |
See Datasheet |
28 Ld PDIP |
N/A |
Contact Us |
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| HI3-674AKN-5Z |
Coming
Soon |
See Datasheet |
28 Ld PDIP |
N/A |
Contact Us |
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| HI1-674AJD-5 |
InActive |
See Datasheet |
28 Ld SBDIP |
N/A |
N/A |
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| HI1-674ASD-2 |
InActive |
Mil |
28 Ld SBDIP |
N/A |
N/A |
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| The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice. |
| MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020 |
| SMD = Standard Microcircuit Drawing |
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 Description |
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The HI-X74(A) is a complete 12-bit, Analog-to-Digital Converter, including a +10V reference clock, three-state outputs and a digital interface for microprocessor control. Successive approximation conversion is performed by two monolithic dice housed in a 28 lead package. The bipolar analog die features the Intersil Dielectric Isolation process, which provides enhanced AC performance and freedom from latch-up.
Custom design of each IC (bipolar analog and CMOS digital) has yielded improved performance over existing versions of this converter. The voltage comparator features high PSRR plus a high speed current-mode latch, and provides precise decisions down to 0.1 LSB of input overdrive. More than 2X reduction in noise has been achieved by using current instead of voltage for transmission of all signals between the analog and digital ICs. Also, the clock oscillator is current controlled for excellent stability over temperature.
The HI-X74(A) offers standard unipolar and bipolar input ranges, laser trimmed for specified linearity, gain and offset accuracy. The low noise buried zener reference circuit is trimmed for minimum temperature coefficient.
Power requirements are +5V and ±12V to ±15V, with typical dissipation of 385mW (HI-574A/674A) at 12V. |
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 Key Features |
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Complete 12-Bit A/D Converter with Reference and Clock
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Full 8-Bit, 12-Bit or 16-Bit Microprocessor Bus Interface
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Bus Access Time 150ns
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No Missing Codes Over Temperature
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Minimal Setup Time for Control Signals
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Fast Conversion Times
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HI-574A (Max) 25µs
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HI-674A (Max) 15µs
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Low Noise, via Current-Mode Signal Transmission Between Chips
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Byte Enable/Short Cycle (AO Input)
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Guaranteed Break-Before-Make Action, Eliminating Bus Contention During Read Operation. Latched by Start Convert Input (To Set the Conversion Length)
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Supply Voltage ±12V to ±15V
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Pb-Free Available (RoHS Compliant)
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| Related Documentation |
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 Application Note(s): |
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 Datasheet(s): |
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 Technical Homepage: |
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 Parametric Data |
| | Resolution (Bits) | | 12 | | | Conv. Rate (MSPS) | | .067 | | | Channels | | 1 | | | Power (mW) | | 515 | | | Supply Voltage (V) | | Multi (±12-15 Anlg , +5.0 Dig) | | | Input VIN (Range) (VP-P, differential) | | Multi ( ±5,10) | |
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| Applications |
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- Military and Industrial Data Acquisition Systems
- Electronic Test and Scientific Instrumentation
- Process Control Systems
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| | HI-574A | | Complete, 12-Bit A/D Converters with Microprocessor Interface | | | HI5805 | | 12-Bit, 5MSPS A/D Converter | | | HI5812 | | CMOS 20ms, 12-Bit, Sampling A/D Converter with Internal Track and Hold | |
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