AD9244集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

AD9244属于集成电路（IC）的模数转换器（ADC）。由亚德诺半导体技术有限公司制造生产的AD9244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。

GENERAL DESCRIPTION

The AD9244 is a monolithic, single 5 V supply, 14-bit, 40 MSPS/65 MSPS ADC with an on-chip, high performance sample-and-hold amplifier (SHA) and voltage reference. The AD9244 uses a multistage differential pipelined architec ture with output error correction logic to provide 14-bit accuracy at 40 MSPS/65 MSPS data rates, and guarantees no missing codes over the full operating temperature range. The AD9244 has an on-board, programmable voltage reference.

An external reference can also be used to suit the dc accuracy and temperature drift requirements of the application.

A differential or single-ended clock input controls all internal conversion cycles. The digital output data can be presented in straight binary or in twos complement format. An out-of-range (OTR) signal indicates an overflow condition that can be used with the most significant bit to determine low or high overflow.

Fabricated on an advanced CMOS process, the AD9244 is available in a 48-lead LQFP and is specified for operation over the industrial temperature range (–40°C to +85°C).

FEATURES

14-bit, 40 MSPS/65 MSPS ADC

Low power

550 mW at 65 MSPS

300 mW at 40 MSPS

On-chip reference and sample-and-hold

750 MHz analog input bandwidth

SNR > 73 dBc to Nyquist @ 65 MSPS

SFDR > 86 dBc to Nyquist @ 65 MSPS

Differential nonlinearity error = ±0.7 LSB

Guaranteed no missing codes over full temperature range

1 V to 2 V p-p differential full-scale analog input range

Single 5 V analog supply, 3.3 V/5 V driver supply

Out-of-range indicator

Straight binary or twos complement output data

Clock duty cycle stabilizer

Output-enable function

48-lead LQFP package

APPLICATIONS

Communication subsystems (microcell, picocell)

Medical and high-end imaging equipment

Test and measurement equipment