AD9280:完整8位、32 MSPS AD

AD9280: 完整8位、32 MSPS AD

AD9280 功能框图 AD9280是一款单芯片、8位、32 MSPS模数转换器（ADC），采用单电源供电，内置一个片内采样保持放大器和基准电压源。它采用多级差分流水线架构，数据速率达32 MSPS，在整个工作温度范围内保证无失码。AD9280的输入经过设计，使成像和通信系统的开发更加轻松。用户可以选择各种输入范围和偏移，并可通过单端或差分方式驱动输入。采样保持放大器（SHA）既适用于在连续通道中切换满量程电平的多路复用系统，也适合采用最高Nyquist速率及更高的频率对单通道输入进行采样。利用片上钳位电路，可以使交流耦合输入信号偏移到预定电平。动态性能极为出色。AD9280具有一个片上可编程基准电压源。也可以选用外部基准电压，以满足应用的直流精度与温度漂移要求。采用一个单时钟输入来控制所有内部转换周期。数字输出数据格式为标准二进制。超量程（OTR）信号表示溢出状况，可由最高有效位来确定是下溢还是上溢。AD9280采用+2.7 V至+5.5 V电源供电，非常适合高速应用中的低功耗操作。额定温度范围为-40°C至+85°C工业温度范围。

The AD9280 is a monolithic, single supply, 8-bit, 32 MSPS analog-to-digital converter with an on-chip sample-and-hold amplifier and voltage reference. The AD9280 uses a multistage differential pipeline architecture at 32 MSPS data rates and guarantees no missing codes over the full operating temperature range.The input of the AD9280 has been designed to ease the development of both imaging and communications systems. The user can select a variety of input ranges and offsets and can drive the input either single-ended or differentially.The sample-and-hold amplifier (SHA) is equally suited for both multiplexed systems that switch full-scale voltage levels in successive channels and sampling single-channel inputs at frequencies up to and beyond the Nyquist rate. AC-coupled input signals can be shifted to a predetermined level, with an onboard clamp circuit. The dynamic performance is excellent.The AD9280 has an onboard programmable reference. An external reference can also be chosen to suit the dc accuracy and temperature drift requirements of the application.A single clock input is used to control all internal conversion cycles. The digital output data is presented in straight binary output format. An out-of-range signal (OTR) indicates an overflow condition which can be used with the most significant bit to determine low or high overflow.The AD9280 can operate with a supply range from +2.7

AD9280 特点

与AD876-8引脚兼容
功耗：95 mW（3 V电源）
工作电压范围：+2.7V至+5.5V
微分非线性（DNL）误差：0.2 LSB
省电（休眠）模式
三态输出
超量程指示
内置钳位功能（直流复位）
可调片内基准电压
IF欠采样至135 MHz

AD9280 技术指标

Resolution (Bits): 8bit
# Chan: 1
Sample Rate: 32MSPS
Interface: Par
Analog Input Type: Diff-Uni,SE-Uni
Ain Range: 1 V p-p,2 V p-p
ADC Architecture

AD9280 芯片订购指南

产品型号	封装	引脚	温度范围	包装和数量	报价*(100-499)	报价*1000 pcs	RoHS
AD9280ARS 产品状态: 量产	28 ld SSOP	28	工业	Tube, 47	$ 2.65	$ 2.52	N 材料信息
AD9280ARSRL 产品状态: 量产	28 ld SSOP	28	工业	Reel, 1500	-	$ 2.52	N 材料信息
AD9280ARSZ 产品状态: 量产	28 ld SSOP	28	工业	Tube, 47	$ 2.29	$ 2.18	Y 材料信息
AD9280ARSZRL 产品状态: 量产	28 ld SSOP	28	工业	Reel, 1500	-	$ 2.18	Y 材料信息