THS1209CDA屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由美國(guó)德州儀器公司制造生產(chǎn)的THS1209CDA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(lèi)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。

FEATURES

Simultaneous Sampling of 2 Single-Ended

Signals or 1 Differential Signal

Signal-to-Noise Ratio: 68 dB at fI = 2 MHz

Differential Nonlinearity Error: ±1 LSB

Integral Nonlinearity Error: ±1.5 LSB

Auto-Scan Mode for 2 Inputs

3-V or 5-V Digital Interface Compatible

Low Power: 218 mW Max at 5 V

Power Down: 1 mW Max

5-V Analog Single Supply Operation

Internal Voltage References . . . 50 PPM/°C

and ±5% Accuracy

Glueless DSP Interface

Parallel μC/DSP Interface

APPLICATIONS

Radar Applications

Communications

Control Applications

High-Speed DSP Front-End

Automotive Applications

DESCRIPTION

The THS1209 is a CMOS, low-power, 12-bit, 8 MSPS

analog-to-digital converter (ADC). The speed,

resolution, bandwidth, and single-supply operation are

suited for applications in radar, imaging, high-speed

acquisition, and communications. A multistage

pipelined architecture with output error correction logic

provides for no missing codes over the full operating

temperature range. Internal control registers allow for

programming the ADC into the desired mode. The

THS1209 consists of two analog inputs, which are

sampled simultaneously. These inputs can be selected

individually and configured to single-ended or

differential inputs. Internal reference voltages for the

ADC (1.5 V and 3.5 V) are provided. An external

reference can also be chosen to suit the dc accuracy

and temperature drift requirements of the application.

The THS1209C is characterized for operation from 0°C

to 70°C, and the THS1209I is characterized for

operation from –40°C to 85°C.