AD7824: High Speed, 4-Channel, 8-Bit CMOS ADC
The AD7824 and AD7828 are high-speed, multichannel, 8-bit ADCs with a choice of 4 (AD7824) or 8 (AD7828) multiplexed analog inputs. A half-flash conversion technique gives a fast conversion rate of 2.5 us per channel and the parts have a built-in track/hold function capable of digitizing full-scale signals of 10 kHz (157 mV/us slew rate) on all channels. The AD7824 and AD7828 operate from a single +5 V supply and have an analog input range of 0 V to +5 V, using an external +5 V reference.
Microprocessor interfacing of the parts is simple, using standard Chip Select (CS) and Read (RD) signals to initiate the conversion and read the data from the three-state data outputs. The half-flash conversion technique means that there is no need to generate a clock signal for the ADC. The AD7824 and AD7828 can be interfaced easily to most popular microprocessors.
The AD7824 and AD7828 are fabricated in an advanced, all ion-implanted, Linear-Compatible CMOS process (LC2MOS) and have low power dissipation of 40 mW (typ). The AD7824 is available in a 0.3" wide, 24-pin "skinny" DIP, while the AD7828 is available in a 0.6" wide, 28-pin DIP and in 28- terminal surface mount packages.
AD7824 特点
- 4 or 8 Analog Input Channels
- Built-In Track-and-Hold Function
- 10 kHz Signal Handling on Each Channel
- Fast Microprocessor Interface
- Single 5 V Supply
- Low Power: 50 mW
- Fast Conversion Rate: 2.5 us/Channel
- Tight Error Specification: 1/2 LSB
AD7824 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| 5962-8876401LX | 量产 | CERDIP GLASS SEAL | 24 | 军用 |
| 5962-8876402LX | 量产 | CERDIP GLASS SEAL | 24 | 军用 |
| AD7824BCHIPS | 量产 | CHIPS OR DIE | - | 商业 |
| AD7824BQ | 量产 | CERDIP GLASS SEAL | 24 | 工业 |
| AD7824CQ | 量产 | CERDIP GLASS SEAL | 24 | 工业 |
| AD7824KN | 量产 | 24 ld PDIP | 24 | 商业 |
| AD7824KNZ | 量产 | 24 ld PDIP | 24 | 商业 |
| AD7824KR | 量产 | 24 ld SOIC - Wide | 24 | 商业 |
| AD7824KR-REEL | 量产 | 24 ld SOIC - Wide | 24 | 商业 |
| AD7824KRZ | 量产 | 24 ld SOIC - Wide | 24 | 商业 |
| AD7824KRZ-REEL | 量产 | 24 ld SOIC - Wide | 24 | 商业 |
| AD7824LN | 量产 | 24 ld PDIP | 24 | 商业 |
| AD7824LNZ | 量产 | 24 ld PDIP | 24 | 商业 |
| AD7824UQ | 量产 | CERDIP GLASS SEAL | 24 | 军用 |