AD9237屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD9237模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對(duì)模擬信號(hào)進(jìn)行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號(hào)。一般來(lái)說(shuō)，數(shù)字輸出是二進(jìn)制補(bǔ)碼二進(jìn)制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進(jìn)行選擇。

GENERAL DESCRIPTION

The AD9237 is a family of monolithic, single 3 V supply, 12-bit, 20 MSPS/40 MSPS/65 MSPS analog-to-digital converters (ADC). This family features a high performance sample-and-hold amplifier (SHA) and voltage reference. The AD9237 uses a multistage differential pipelined architecture with output error correction logic to provide 12-bit accuracy at 20 MSPS/40 MSPS/65 MSPS data rates and guarantees no missing codes over the full operating temperature range.

FEATURES

Ultralow power 85 mW at 20 MSPS 135 mW at 40 MSPS 190 mW at 65 MSPS

SNR = 66 dBc to Nyquist at 65 MSPS

SFDR = 80 dBc to Nyquist at 65 MSPS

DNL = ±0.7 LSB

Differential input with 500 MHz bandwidth

Flexible analog input: 1 V p-p to 4 V p-p range

Offset binary, twos complement, or gray code data formats

Output enable pin

2-step power-down

Full power-down and sleep mode

Clock duty cycle stabilizer

APPLICATIONS

Ultrasound and medical imaging

Battery-powered instruments

Hand-held scope meters

Low cost digital oscilloscopes

Low power digital still cameras and copiers

Low power communications