MAX108数据手册集成电路（IC）的模数转换器（ADC）规格书PDF

描述 Description

The MAX108 PECL-compatible, 1.5Gsps, 8-bit ultra high-speed analog-to-digital converter (ADC) allows accurate digitizing of analog signals with bandwidths to 2.2GHz. Fabricated on Maxim's proprietary advanced GST-2 bipolar process, the MAX108 integrates a high-performance track/hold (T/H) amplifier and a quantizer on a single monolithic die.
The innovative design of the internal T/H, which has an exceptionally wide 2.2GHz full-power input bandwidth, results in high performance (typically 7.5 effective bits) at the Nyquist frequency. A fully differential comparator design and decoding circuitry reduce out-of-sequence code errors (thermometer bubbles or sparkle codes) and provide excellent metastable performance. Unlike other ultra high-speed ADCs that can have errors resulting in false full- or zero-scale outputs, the MAX108 limits the error magnitude to 1 LSB.
The analog input is designed for either differential or single-ended use with a ±250mV input voltage range. Dual, differential, positive-referenced emitter-coupled logic (PECL)-compatible output data paths ensure easy interfacing and include an 8:16 demultiplexer feature that reduces output data rates to one-half the sampling clock rate. The PECL outputs can be operated from any supply between +3V to +5V for compatibility with +3.3V or +5V referenced systems. Control inputs are provided for interleaving additional MAX108 devices to increase the effective system sampling rate.
The MAX108 is packaged in a 25mm x 25mm, 192-contact Enhanced Super Ball-Grid Array (ESBGA™) and is specified over the commercial (0°C to +70°C) temperature range. For pin-compatible, lower speed versions of the MAX108, see the MAX104 (1Gsps) and the MAX106 (600Msps) data sheets.

特性 Features

• 1.5Gsps Conversion Rate
• 2.2GHz Full-Power Analog Input Bandwidth
• 7.5 Effective Bits at fIN = 750MHz (Nyquist Frequency)
• ±0.25 LSB INL and DNL
• 50Ω Differential Analog Inputs
• ±250mV Input Signal Range
• On-Chip, +2.5V Precision Bandgap Voltage Reference
• Latched, Differential PECL Digital Outputs
• Selectable 8:16 Demultiplexer
• Internal Demux Reset Input with Reset Output
• 192-Contact ESBGA Package
• Pin Compatible with MAX104 (1Gsps) and MAX106 (600Msps)

应用 Application

• 自动测试设备(ATE)
• 数字示波器
• 数字射频/中频信号处理
• 直接射频下变频器
• 高能物理
• 高速数据采集器
• 雷达/ECM系统

简介

MAX108属于集成电路（IC）的模数转换器（ADC）。由制造生产的MAX108模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。