ADS7800JU集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

ADS7800JU属于集成电路（IC）的模数转换器（ADC）。由美国德州仪器公司制造生产的ADS7800JU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。

FEATURES

333k SAMPLES PER SECOND

STANDARD ±10V AND ±5V INPUT RANGES

DC PERFORMANCE OVER TEMP:

No Missing Codes

1/2LSB Integral Linearity Error

3/4LSB Differential Linearity Error

AC PERFORMANCE OVER TEMP:

72dB Signal-to-Noise Ratio

80dB Spurious-Free Dynamic Range

–80dB Total Harmonic Distortion

INTERNAL SAMPLE/HOLD, REFERENCE,

CLOCK, AND THREE-STATE OUTPUTS

POWER DISSIPATION: 215mW max

PACKAGE: 24-Pin Single-Wide DIP

24-Lead SOIC

DESCRIPTION

The ADS7800 is a complete 12-bit sampling analog-todigital

(A/D) converter using state-of-the-art CMOS

structures. It contains a complete 12-bit successive

approximation A/D converter with internal sample/hold,

reference, clock, digital interface for microprocessor

control, and three-state output drivers.

The ADS7800 is specified at a 333kHz sampling rate.

Conversion time is factory set for 2.70μs max over

temperature, and the high-speed sampling input stage

insures a total acquisition and conversion time of 3μs

max over temperature. Precision, laser-trimmed scaling

resistors provide industry-standard input ranges of ±5V

or ±10V.

AC and DC performance are completely specified. Two

grades based on linearity and dynamic performance are

available to provide the optimum price/performance fit in

a wide range of applications.

The 24-pin ADS7800 is available in plastic and sidebraze

hermetic 0.3 wide DIPs, and in an SOIC package.

It operates from a +5V supply and either a –12V or –15V

supply. The ADS7800 is available in grades specified

over 0°C to +70°C and –40°C to +85°C temperature

ranges.