Datasheet > ADS809

ADS809

更新时间： 2022-11-29 05:18:26

品牌	Logo	应用领域
BB		转换器
页数	文件大小	规格书
20页	435K
描述
12-Bit, 80MHz Sampling ANALOG-TO-DIGITAL CONVERTER

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ADS809 数据手册

ADS809

SBAS170C – NOVEMBER 2000 – REVISED JANUARY 2003

12-Bit, 80MHz Sampling

ANALOG-TO-DIGITAL CONVERTER

FEATURES

DESCRIPTION

● DYNAMIC RANGE:

The ADS809 is a high-dynamic range, 12-bit, 80MHz, pipelined

Analog-to-Digital Converter (ADC). It includes a high-band-

width linear track-and-hold that has a low jitter of only 0.5ps

rms, leading to excellent Signal-to-Noise Ratio (SNR) perfor-

mance. The clock input can accept a low-level differential sine

wave or square wave signal down to 0.5Vp-p, further improv-

ing the SNR performance. It also accepts a single-ended

clock signal and has flexible threshold levels.

SNR: 65dB at 10MHz f_IN

SFDR: 68dB at 10MHz f_IN

● PREMIUM TRACK-AND-HOLD:

Low Jitter: 0.5ps rms

Differential or Single-Ended Inputs

Selectable Full-Scale Input Range

● FLEXIBLE CLOCKING:

The ADS809 has a 2Vp-p differential input range (1Vp-p • 2

inputs) for optimum signal-to-noise ratio. The differential

operation gives the lowest even-order harmonic compo-

nents. A lower input voltage of 1.5Vp-p or 1Vp-p can also be

selected using the internal references, further optimizing

Spurious-Free Dynamic Range (SFDR). Alternatively, a single-

ended input range can be used by tying the IN input to the

common-mode voltage if desired.

Differential or Single-Ended

Accepts Sine or Square Wave Clocking

Down to 0.5Vp-p

Variable Threshold Level

APPLICATIONS

The ADS809 also provides an over-range flag that indicates

when the input signal has exceeded the converter’s full-scale

range. This flag can also be used to reduce the gain of the

front-end signal conditioning circuitry. It also employs digital

error-correction techniques to provide excellent differential

linearity for demanding imaging applications. The ADS809 is

available in a small TQFP-48 PowerPAD™ thermally-

enhanced package.

● BASESTATION WIDEBAND RADIOS:

CDMA, GSM, TDMA, 3G, AMPS, and NMT

● TEST INSTRUMENTATION

● CCD IMAGING

PowerPAD is a registered trademark of Texas Instruments.

+V_S

CLK

ADS809

Timing Circuitry

CLK

1Vp-p

12-Bit

Pipelined

ADC Core

Error

Correction

Logic

3-State

Outputs

•

T&H

D11

(+2.5V)

OVR

Reference Ladder

and Driver

Reference and

Mode Select

REFT

V_REFSEL1 SEL2

REFB

OE VDRV

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

12 3 4 5 6 7...20

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与ADS809相关器件

型号	品牌	描述	获取价格	数据表
ADS809Y/250	BB	12-Bit, 80MHz Sampling ANALOG-TO-DIGITAL CONVERTER	获取价格
ADS809Y/2K	BB	12-Bit, 80MHz Sampling ANALOG-TO-DIGITAL CONVERTER	获取价格
ADS809Y/2K	TI	1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48, GREEN, PLASTIC, HTQFP-48	获取价格
ADS809Y/2K5	TI	1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48, POWER, PLASTIC, TQFP-48	获取价格
ADS809Y/2KG4	TI	1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48, GREEN, PLASTIC, HTQFP-48	获取价格
ADS8166	TI	具有基准电压、基准电压缓冲器和直接传感器接口的 16 位、250kSPS、8 通道 SAR	获取价格

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