AD7694: 250 kSPS、16位PulSAR® ADC,采用µSOIC封装
AD7694是一款16位、250 kSPS、电荷再分配、逐次逼近型模数转换器（ADC）,采用2.7 V至5.25 V单电源（VDD ）供电。该器件内置一个极低功耗、高速、16位无失码采样ADC（B级）、一个内部转换时钟和一个SPI兼容串行接口端口,还集成了一个低噪声、宽带宽、极短孔径延迟的采样保持电路。在CNV上升沿,AD7694对IN+与IN-之间的模拟输入电压差进行采样,范围从0V至REF。基准电压（REF）由外部提供,最高可设置为电源电压。功耗和吞吐量呈线性变化关系。AD7694采用8引脚µSOIC封装,工作温度范围为-40°C至+85°C。
The AD7694 is a 16-bit, 250 kSPS, charge redistribution successive-approximation Analog-to-Digital Converter which operates from a single power supply, VDD between 2.7 V to 5.25 V. It contains a very low power high-speed 16-bit samplingADC with no missing codes (B grade), an internal conversion clock and a SPI compatible serial interface port. The part also contains a low noise, wide bandwidth, very short aperture delay track/hold circuit. On the CNV rising edge, it samples an analog input IN+ between 0 V to REF with respect to a ground sense IN-. The reference voltage REF is applied externally and can be set up to the supply voltage.Its power scales linearly with throughput.The AD7694 is housed in a 8-lead µSOIC with operation specified from –40°C to +85°C.
AD7694 特点
- 16位分辨率
- 吞吐量：250 kSPS
- 积分非线性（INL）：最大值±4 LSB
- 功耗：
800 µA @ 5V/100 kSPS
540 µA @ 2.7V/100 kSPS - 伪差分模拟输入范围： 0 V ～ VREF （VREF最高为VDD）
- S/（N+D）： 92 dB @ 20 kHz
- 无流水线延迟
- 单电源工作：2.7V或5 V
- 串行接口： SPI®/QSPI™/µWire/DSP 兼容
- µSOIC封装（µSO8）
- 可替代LTC1864和LTC1864L
- 16 Bits Resolution
- Throughput: 250 kSPS
- INL: ±4 LSB Max
- Power Dissipation:
800 µA @ 5V/100 kSPS
540 µA @ 2.7V/100 kSPS - Pseudo-Differential Analog Input Range: 0 V to VREF with VREF up to VDD
- S/(N+D): 92 dB @ 20 kHz
- No Pipeline Delay
- Single Supply Operation 2.7 V or 5 V
- Serial Interface SPI®/QSPI™/µWire/DSP compatible
- µSOIC Package (µSO8)
- Improved 2nd Source of LTC1864 and LTC1864L
AD7694 技术指标
- Resolution (Bits): 16bit
- # Chan: 1
- Sample Rate: 250kSPS
- Interface: Ser,SPI
- Analog Input Type: Diff-Uni
- Ain Range: (Vref) p-p,Uni (Vref)
- ADC Architecture: SAR
- Pkg Type: SOP
AD7694 应用领域
- 电池供电设备
- 医疗仪器
- 移动通信更多
AD7694 功能框图
AD7694 芯片订购指南
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD7694ARM | Prodn | 8 ld MSOP | 8 | 工业 |
| AD7694ARMRL7 | Prodn | 8 ld MSOP | 8 | 工业 |
| AD7694ARMZ | Prodn | 8 ld MSOP | 8 | 工业 |
| AD7694ARMZRL7 | Prodn | 8 ld MSOP | 8 | 工业 |
| AD7694BRM | Prodn | 8 ld MSOP | 8 | 工业 |
| AD7694BRMRL7 | Prodn | 8 ld MSOP | 8 | 工业 |
| AD7694BRMZ | Prodn | 8 ld MSOP | 8 | 工业 |
| EVAL-AD7694CB | Prodn | EVALUATION BOARDS | 8 | 工业 |
| EVAL-AD7694CBZ | Prodn | EVALUATION BOARDS | 8 | 工业 |
AD7694 应用技术支持与电子电路设计开发资源下载
- AD7694 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
