AD7569: CMOS, Complete 8-Bit Analog I/0 Port with Single DAC Output
The AD7569/AD7669 is a complete, 8-bit, analog I/O system on a single monolithic chip. The AD7569 contains a high speed successive approximation ADC with 2 us conversion time, a track/ hold with 200 kHz bandwidth, a DAC and an output buffer amplifier with 1 ms settling time. A temperature-compensated 1.25 V bandgap reference provides a precision reference voltage for the ADC and the DAC. The AD7669 is similar, but contains two DACs with output buffer amplifiers.
A choice of analog input/output ranges is available. Using a supply voltage of +5 V, input and output ranges of zero to 1.25 V and zero to 2.5 volts may be programmed using the RANGE input pin. Using a ±5 V supply, bipolar ranges of ±1.25 V or ±2.5 V may be programmed.
Digital interfacing is via an 8-bit I/O port and standard microprocessor control lines. Bus interface timing is extremely fast, allowing easy connection to all popular 8-bit microprocessors. A separate start convert line controls the track/hold and ADC to give precise control of the sampling period.
The AD7569/AD7669 is fabricated in Linear-Compatible CMOS (LC2MOS), an advanced, mixed technology process combining precision bipolar circuits with low power CMOS logic. The AD7569 is packaged in a 24-pin, 0.3" wide ^3skinny^2 DIP, a 24-terminal SOIC and 28-terminal PLCC and LCCC packages. The AD7669 is available in a 28-pin, 0.6" plastic DIP, 28-terminal SOIC and 28-terminal PLCC package.
AD7569 特点
- 2 us ADC with Track/Hold
- 1 us DAC with Output Amplifier
AD7569, Single DAC Output
AD7669, Dual DAC Output - On-Chip Bandgap Reference
- Fast Bus Interface
- Single or Dual 5 V Supplies
AD7569 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| 5962-89629013X | 量产 | LCC:CER LEADLESS CHIP CARR | 28 | 军用 |
| 5962-8962902LX | 量产 | CERDIP GLASS SEAL | 24 | 军用 |
| AD7569AQ | 量产 | CERDIP GLASS SEAL | 24 | 工业 |
| AD7569BNZ | 量产 | 24 ld PDIP | 24 | 工业 |
| AD7569BQ | 量产 | CERDIP GLASS SEAL | 24 | 工业 |
| AD7569BR | 量产 | 24 ld SOIC - Wide | 24 | 商业 |
| AD7569BRZ | 量产 | 24 ld SOIC - Wide | 24 | 商业 |
| AD7569JN | 量产 | 24 ld PDIP | 24 | 商业 |
| AD7569JNZ | 量产 | 24 ld PDIP | 24 | 商业 |
| AD7569JP | 量产 | 28 ld PLCC | 28 | 商业 |
| AD7569JP-REEL | 量产 | 28 ld PLCC | 28 | 商业 |
| AD7569JPZ | 量产 | 28 ld PLCC | 28 | 商业 |
| AD7569JPZ-REEL | 量产 | 28 ld PLCC | 28 | 商业 |
| AD7569JRZ | 量产 | 24 ld SOIC - Wide | 24 | 商业 |
| AD7569JRZ-REEL | 量产 | 24 ld SOIC - Wide | 24 | 商业 |
| AD7569KNZ | 量产 | 24 ld PDIP | 24 | 商业 |
| AD7569KPZ | 量产 | 28 ld PLCC | 28 | 商业 |
| AD7569KPZ-REEL | 量产 | 28 ld PLCC | 28 | 商业 |
| AD7569SQ | 量产 | CERDIP GLASS SEAL | 24 | 军用 |
| AD7569SQ/883B | 量产 | CERDIP GLASS SEAL | 24 | 军用 |
| AD7569TQ | 量产 | CERDIP GLASS SEAL | 24 | 军用 |