AD7466BRTZ-REEL: 1.6 V微功率12位ADC
AD7466/AD7467/AD7468*分别是12/10/8位高速、低功耗逐次逼近型模数转换器(ADC),工作电压为1.6V至3.6V单电源,具有低功耗特性,最高呑吐量可达200 kSPS。该器件内置一个低噪声、宽带宽采样保持放大器,可处理3 MHz以上的输入频率。
转换过程和数据采集过程通过CS和串行时钟进行控制,从而为器件与微处理器或DSP接口创造了条件。输入信号在CS的下降沿进行采样,而转换同时在此处启动。该器件不存在流水线延迟。
基准电压从VDD获得,从而为ADC提供了最宽的动态输入范围,因此,其模拟输入范围为0至VDD。转换速率取决于SCLK。
产品聚焦
- 额定电源电压：1.6 V至3.6 V
- 12、10和8位ADC,提供SOT-23和MSOP两种封装模式
- 高呑吐量、低功耗,正常工作模式下的最大功耗为0.9 mW（100 kSPS,3 V时）
- 灵活的功耗/串行时钟速度管理。转换速率取决于串行时钟,通过增加串行时钟速率可缩短转换时间。可在转换完成后自动进入省电模式,从而降低了省电模式下的平均功耗,器件的最大功耗为0.1 μA,省电模式下一般为8 nA
- 基准电压从电源获得
- 无流水线延迟
- 该器件具有一个标准逐次逼近型ADC,可通过CS输入对转换进行精确控制
产品应用领域 Applications
- 电池供电系统
- 医疗仪器
- 远程数据采集
The AD7466/AD7467/AD7468* are 12-/10-/8-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs), respectively. The parts operate from a single 1.6 V to 3.6 V power supply and feature throughput rates up to 200 kSPS with low power dissipation. The parts contain a low noise, wide bandwidth track-and-hold amplifier, which can handle input frequencies in excess of 3 MHz.
The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS, and the conversion is also initiated at this point. There are no pipeline delays associated with the part.
The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC. Thus, the analog input range for the part is 0 V to VDD. The conversion rate is determined by the SCLK.
产品焦点 Product Highlights
- Specified for supply voltages of 1.6 V to 3.6 V
- 12-, 10-, and 8-bit ADCs in SOT-23 and MSOP packages
- High throughput rate with low power consumption. Power consumption in normal mode of operation at 100 kSPS and 3 V is 0.9 mW maximum
- Flexible power/serial clock speed management. The conversion rate is determined by the serial clock, allowing the conversion time to be reduced through increases in the serial clock speed. Automatic power-down after conversion allows the average power consumption to be reduced when in power-down. Current consumption is 0.1 μA maximum and 8 nA typically when in power-down
- Reference derived from the power supply
- No pipeline delay
- The part features a standard successive approximation ADC with accurate control of conversions via a CS input
产品应用领域 Applications
- Battery-powered systems
- Medical instruments
- Remote data acquisition
- Isolated data acquisition
AD7466BRTZ-REEL 特性
- 额定电压(VDD)：1.6 V至3.6 V
- 低功耗：
典型0.62 mW（100 kSPS,3 V电源）
典型0.48 mW（50 kSPS,3.6 V电源）
典型0.12 mW（100 kSPS,1.6 V电源） - 高呑吐量：200 kSPS
- 宽输入带宽：
71 dB信噪比（30 kHz输入频率） - 灵活的功耗/串行时钟速度管理
- 无流水线延迟
- 高速串行接口：
SPI/QSPITM/MICROWIRETM/DSP 兼容 - 自动省电模式
- 省电模式：8 nA (典型值)
- 6引脚SOT-23封装
- 8引脚MSOP封装
- Specified for VDD of 1.6 V to 3.6 V
- Low power:
0.62 mW typical at 100 kSPS with 3 V supplies
0.48 mW typical at 50 kSPS with 3.6 V supplies
0.12 mW typical at 100 kSPS with 1.6 V supplies - Fast throughput rate: 200 kSPS
- Wide input bandwidth:
71 dB SNR at 30 kHz input frequency - Flexible power/serial clock speed management
- No pipeline delays
- High speed serial interface:
SPI/QSPITM/MICROWIRETM/DSP compatible - Automatic power-down
- Power-down mode: 8 nA typical
- 6-lead SOT-23 package
- 8-lead MSOP package
AD7466BRTZ-REEL 功能框图
AD7466 芯片订购指南
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD7466BRMZ | 量产 | 8 ld MSOP | 8 | 商业 |
| AD7466BRMZ-REEL | 量产 | 8 ld MSOP | 8 | 商业 |
| AD7466BRMZ-REEL7 | 量产 | 8 ld MSOP | 8 | 商业 |
| AD7466BRTZ-R2 | 量产 | 6 ld SOT-23 | 6 | 商业 |
| AD7466BRTZ-REEL | 量产 | 6 ld SOT-23 | 6 | 工业 |
| AD7466BRTZ-REEL7 | 量产 | 6 ld SOT-23 | 6 | 商业 |
| EVAL-AD7466CBZ | 量产 | 评估板 | - | 待定 |
- 民用温度范围：0 oC～＋70 oC
- 军用温度范围：－55oC ～＋125oC
- 工业用温度范围：不同型号的产品的温度范围可能不同。
- 汽车工作温度范围：-40 ℃～ +125 ℃