AD7899: 5 V单电源、400 kSPS、14位ADC
AD7899是一款快速、低功耗、14位模数转换器（ADC），采用+5 V单电源供电。该器件内置一个2.0微秒（µs）逐次逼近型ADC、一个采样保持放大器、2.5 V基准电压源、片内时钟振荡器、信号调理电路和一个高速并行接口，可接受的模拟输入范围为±10 V、±5 V、±2.5 V、0 V至+2.5 V和0 V至+5 V。模拟输入均具有过压保护，允许超过输入电压范围，而不会损坏器件或影响正在进行的转换。
AD7899 特点
- 快速（2.2 µs）、14位ADC
- 吞吐量：400 kSPS
- 采样保持采集时间：0.3 µs
- 单电源供电
- 高速并行接口，也可与3 V处理器进行接口
- 低功耗：80 mW（典型值）
- 输入范围选择：±10 V、±5 V和±2.5 V ;0 V至2.5 V和0 V至5 V
- 省电模式：20 µW（典型值）
- 模拟输入过压保护
- 通过STBY引脚设置省电模式
- Fast (2.2 µs) 14-Bit ADC
- 400 kSPS Throughput Rate
- 0.3 µs Track/Hold Acquisition Time
- Single Supply Operation
- High-Speed Parallel Interface which Also Allows Interfacing to 3 V Processors
- Low Power, 80 mW Typ
- Selection of Input Ranges:
±10 V, ±5 V and ±2.5 V
0 V to 2.5 V and 0 V to 5 V - Power-Saving Mode, 20 µW Typ
- Overvoltage Protection on Analog Inputs
- Power-Down Mode via STBY Pin
AD7899 技术指标
- Resolution (Bits): 14bit
- # Chan: 1
- Sample Rate: 400kSPS
- Interface: Par
- Analog Input Type: SE-Bip,SE-Uni
- Ain Range: Bip (Vref),Bip (Vref) x 2,Bip (Vref) x 4,Bip 10V,Bip 2.5V,Bip 5.0V,Uni (Vref),Uni (Vref) x 2,Uni 2.5V,Uni 5.0V
- ADC Architecture: SAR
- Pkg Type: SOIC,SOP
AD7899 功能框图
AD7899 芯片订购指南
| 产品型号 | 产品状态 | 封装 | Pins | 报价* (1000 pcs.) |
|---|---|---|---|---|
| AD7899AR-1 | Prodn | 28 ld SOIC - Wide | 28 | $ 11.02 |
| AD7899AR-1REEL | 量产 | 28 ld SOIC - Wide | 28 | - |
| AD7899AR-1REEL7 | Prodn | 28 ld SOIC - Wide | 28 | $ 10.02 |
| AD7899AR-2 | Prodn | 28 ld SOIC - Wide | 28 | $ 11.02 |
| AD7899AR-2REEL | Prodn | 28 ld SOIC - Wide | 28 | $ 11.02 |
| AD7899AR-3 | Prodn | 28 ld SOIC - Wide | 28 | $ 11.02 |
| AD7899AR-3REEL | Prodn | 28 ld SOIC - Wide | 28 | $ 11.02 |
| AD7899ARS-1 | Prodn | 28 ld SSOP | 28 | $ 11.02 |
| AD7899ARS-1REEL | Prodn | 28 ld SSOP | 28 | $ 11.02 |
| AD7899ARS-2 | Prodn | 28 ld SSOP | 28 | $ 11.02 |
| AD7899ARS-2REEL | Prodn | 28 ld SSOP | 28 | $ 11.02 |
| AD7899ARS-3 | Prodn | 28 ld SSOP | 28 | $ 11.02 |
| AD7899ARSZ-1 | Prodn | 28 ld SSOP | 28 | $ 10.02 |
| AD7899ARSZ-1REEL | Prodn | 28 ld SSOP | 28 | $ 10.02 |
| AD7899ARSZ-1REEL7 | Prodn | 28 ld SSOP | 28 | $ 10.02 |
| AD7899ARSZ-2 | Prodn | 28 ld SSOP | 28 | $ 10.02 |
| AD7899ARSZ-2REEL | Prodn | 28 ld SSOP | 28 | $ 10.02 |
| AD7899ARSZ-3 | Prodn | 28 ld SSOP | 28 | $ 10.02 |
| AD7899ARSZ-3REEL | Prodn | 28 ld SSOP | 28 | $ 10.02 |
| AD7899ARZ-1 | Prodn | 28 ld SOIC - Wide | 28 | $ 10.02 |
| AD7899ARZ-1REEL | Prodn | 28 ld SOIC - Wide | 28 | $ 10.02 |
| AD7899ARZ-2 | Prodn | 28 ld SOIC - Wide | 28 | $ 10.02 |
| AD7899ARZ-2REEL | Prodn | 28 ld SOIC - Wide | 28 | $ 10.02 |
| AD7899ARZ-3 | Prodn | 28 ld SOIC - Wide | 28 | $ 10.02 |
| AD7899BR-1 | Prodn | 28 ld SOIC - Wide | 28 | $ 13.23 |
| AD7899BR-1REEL7 | Prodn | 28 ld SOIC - Wide | 28 | $ 13.23 |
| AD7899BR-3 | Prodn | 28 ld SOIC - Wide | 28 | $ 13.23 |
| AD7899BR-3REEL7 | Prodn | 28 ld SOIC - Wide | 28 | $ 13.23 |
| AD7899BRZ-1 | Prodn | 28 ld SOIC - Wide | 28 | $ 12.02 |
| AD7899BRZ-3 | Prodn | 28 ld SOIC - Wide | 28 | $ 12.02 |
| AD7899SR-1 | Prodn | 28 ld SOIC - Wide | 28 | $ 36.41 |
| AD7899SR-1REEL7 | Prodn | 28 ld SOIC - Wide | 28 | $ 36.41 |
| AD7899SRZ-1 | Prodn | 28 ld SOIC - Wide | 28 | $ 33.10 |
| EVAL-AD7899CBZ | Prodn | EVALUATION BOARDS | - | $ 151.80 |
AD7899 应用技术支持与电子电路设计开发资源下载
- AD7899 数据手册DataSheet下载 .pdf
- Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
- ADC模数转换器选型指南 . pdf
