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参数资料
| 型号： | DAC8420FSZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/24页 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT QUAD SRL LP 16SOIC |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1,000 |
| 设置时间： | 8µs |
| 位数： | 12 |
| 数据接口： | 串行 |
| 转换器数目： | 4 |
| 电压电源： | 双 ± |
| 功率耗散（最大）： | 255mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 4 电压，单极；4 电压，双极 |
| 采样率（每秒）： | 125k |
DAC8420
Rev. B | Page 16 of 24
VREFHI INPUT REQUIREMENTS
The DAC8420 utilizes a unique, patented DAC switch driver
circuit that compensates for different supply, reference voltage,
and digital code inputs. This ensures that all DAC ladder switches
are always biased equally, ensuring excellent linearity under all
conditions. Thus, as shown in Table 1, the VREFHI input of the
DAC8420 requires both sourcing and sinking current capabili-
ties from the reference voltage source. Many positive voltage
references are intended as current sources only and offer little
sinking capability. The user should consider references such as
such an application.
POWER-UP SEQUENCE
To prevent a CMOS latch-up condition, power up VDD, VSS,
and GND prior to any reference voltages. The ideal power-up
sequence is GND, VSS, VDD, VREFHI, VREFLO, and digital
inputs. Noncompliance with the power-up sequence over an
extended period can elevate the reference currents and eventually
damage the device. On the other hand, if the noncompliant
power-up sequence condition is as short as a few milliseconds,
the device can resume normal operation without being damaged
once VDD/VSS is powered.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DAC8420FSZ-REEL2 | 制造商:AD 制造商全称:Analog Devices 功能描述:Quad 12-Bit Serial Voltage Output DAC |
| DAC8420GBC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:12-Bit Digital-to-Analog Converter |
| DAC8420QBC | 制造商:AD 制造商全称:Analog Devices 功能描述:Quad 12-Bit Serial Voltage Output DAC |
| DAC8426 | 制造商:AD 制造商全称:Analog Devices 功能描述:Quad 8-Bit Voltage Out CMOS DAC Complete with Internal 10 V Reference |
| DAC8426AR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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