AD7693BRMZ: 16位、±0.5 LSB、500 kSPS PulSAR®差分ADC,采用MSOP/QFN封装
AD7693是一款16位、逐次逼近型模数转换器（ADC）,采用单电源（VDD）供电。它内置一个低功耗、高速、16位不失码的采样ADC、一个内部转换时钟和一个多功能串行接口。基准电压（VREF）由外部提供,最高可以设置为电源电压VDD。在CNV上升沿,AD7693对IN+与IN-引脚之间的电压差进行采样。这两个引脚上的电压摆幅在0 V 到 VREF之间,大约为VREF/2,相位相反。器件功耗和吞吐量呈线性关系。
SPI兼容串行接口还能够利用SDI输入将几个ADC以菊花链形式连结到单三线式总线上,并提供一个可选的忙闲指示。它采用独立的VIO电源,与1.8V、2.5V、3V或5V逻辑兼容。AD7693采用10引脚MSOP封装或10引脚QFN （LFCSP）封装,工作温度范围为−40°C 至 +85°C。
The AD7693 is a 16-bit, successive approximation analog-to-digital converter (ADC) that operates from a single power supply, VDD. It contains a low power, high speed, 16-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port. The reference voltage, VREF, is applied externally and can be set up to the supply voltage, VDD. On the CNV rising edge, it samples the voltage difference between the IN+ and IN− pins. The voltages on these pins swing in opposite phase between 0 V and VREF about VREF/2.Its power scales linearly with throughput.
Using the SDI input, the SPI-compatible serial interface also features the ability to daisy-chain several ADCs on a single 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate VIO supply.The AD7693 is housed in a 10-lead MSOP or a 10-lead QFN (LFCSP) with operation specified from −40°C to +85°C.
产品应用领域 Applications
- 电池供电设备
- 数据采集
- 地震数据采集系统
- DVM 仪器仪表
- 医疗仪器
产品应用领域 Applications
- Battery-powered equipment
- Data acquisitions
- Seismic data acquisition systems
- DVMs Instrumentation
- Medical instruments
AD7693BRMZ 特点
- 16位分辨率、无失码
- 吞吐量：500 kSPS
- INL/DNL：±0.25 LSB（典型值）,±0.5 LSB（最大值）（FSR的±8 ppm）
- 动态范围：96.5 dB
- SINAD: 96 dB @ 1 kHz
- THD: −120 dB @ 1 kHz
- 真差分模拟输入范围：±VREF 0 V ~ VREF（两个输入上的VREF均可高达VDD）
- 无流水线延迟
- 采用5 V单电源供电,含1.8 V/2.5 V/3 V/5 V逻辑接口
- 串行接口 SPI®/QSPI™/MICROWIRE™/DSP 兼容
- 以菊花链形式连接多个ADC,可选忙闲指示
- 功耗：40 nJ/转换
40 μW @ 5 V/1 kSPS
4 mW @ 5 V/100 kSPS
18 mW @ 5 V/500 kSPS - 16-bit resolution with no missing codes
- Throughput: 500 kSPS
- INL/DNL: ±0.25 LSB typ, ±0.5 LSB max (±8 ppm of FSR)
- Dynamic range: 96.5 dB
- SINAD: 96 dB @ 1 kHz
- THD: −120 dB @ 1 kHz
- True differential analog input range: ±VREF 0 V to VREF with VREF up to VDD on both inputs
- No pipeline delay
- Single-supply 5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
- Serial interface SPI®/QSPI™/MICROWIRE™/DSP compatible
- Daisy-chain multiple ADCs, selectable busy indicator
- Power dissipation: 40 nJ/conversion
40 μW @ 5 V/1 kSPS
4 mW @ 5 V/100 kSPS
18 mW @ 5 V/500 kSPS
AD7693BRMZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD7693BCPZRL | Prodn | 10 ld LFCSP (3x3mm) | 10 | 工业 |
| AD7693BCPZRL7 | Prodn | 10 ld LFCSP (3x3mm) | 10 | 工业 |
| AD7693BRMZ | Prodn | 10 ld MSOP | 10 | 工业 |
| AD7693BRMZRL7 | Prodn | 10 ld MSOP | 10 | 工业 |
| EVAL-AD7693CB | Prodn | EVALUATION BOARDS | - | 工业 |
| EVAL-AD7693CBZ | Prodn | EVALUATION BOARDS | - | 工业 |
AD7693BRMZ 应用技术支持与电子电路设计开发资源下载
- AD7693 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
