MX7821
PRODUCTIONµP-Compatible, 660ns, 8-Bit ADC with Track/Hold
- Part Models
- 3
- 1ku List Price
- Starting From $11.72
Part Details
- 660ns Conversion Time
- 20-Pin Narrow DIP Package
- No External Clock
- Pin-Compatible Upgrade for Industry-Standard 7820
- 100kHz Input Signal Bandwidth
- Bipolar/Unipolar Inputs
- Single +5V or Dual ±5V Supplies
- Ratiometric Reference Inputs
- Static and Dynamic Tested
- Internal Track/Hold
The MX7821 high-speed, microprocessor-compatible (μP), 8-bit analog-to-digital converter (ADC) is a plug-in upgrade fro the industry-standard 7820. The MX7821 uses a half-flash technique, resulting in a 660ns conversion time vs. 1.36μs for the 7820. A VSS pin, not supplied by the 7820, supports dual power supplies and bipolar analog inputs.
The MX7821 has track-and-hold function capable of digitizing a 100kHz signal, and is tested for both its static and dynamic capability. The converter-μP interface appears as a memory location or input/output port that requires no external interface logic. The data outputs use latched, three-state buffered circuitry for direct connection to a μP data bus or system input port. The MX7821 has an overflow output for cascading devices to attain higher resolution. The ADC's input/reference arrangement enables ratiometric operation. For a detailed description of MX7821 operation, refer to the MX7820 data sheet.
Applications
- Audio Systems
- Digital-Signal Processing
- High-Speed Data Acquisition
- High-Speed Servo Loops
- Telecommunications
Documentation
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MX7821KN+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MX7821KR+ | Small-Outline IC, Wide (0.3in) | ||
| MX7821KR+T | Small-Outline IC, Wide (0.3in) |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Multiplexed A/D Converters 1 | ||
| MAX11662 | PRODUCTION | 500ksps, Low-Power, Serial 12-/10-/8-Bit ADCs |
| Product 2 | ||
| MX7820 | CMOS, 1.3µs, 8-Bit ADC with Voltage Reference and Track/Hold | |
| MAX11141 | 500ksps, Low-Power, Serial 12-/10-/8-Bit, 4-/8-/16-Channel ADCs | |
| Single Channel A/D Converters 1 | ||
| MAX150 | PRODUCTION | CMOS, 1.3µs, 8-Bit ADC with Voltage Reference and Track/Hold |
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