ADS4122

更新时间： 2024-11-01 11:46:07

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
61页	1473K
描述
12-Bit, 200-MSPS, Ultralow-Power ADC

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替代型号

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ADS4122 数据手册

ADS4128

www.ti.com

SBAS578 –MAY 2012

12-Bit, 200-MSPS, Ultralow-Power ADC

Check for Samples: ADS4128

FEATURES

DESCRIPTION

The ADS4128 is a 12-bit analog-to-digital converter

(ADC) with sampling rates up to 200 MSPS. This

device uses innovative design techniques to achieve

high dynamic performance, while consuming

extremely low power at 1.8-V supply. The device is

•

Maximum Sample Rate: 200 MSPS

•

Ultralow Power with 1.8-V Single Supply:

–

230-mW Total Power at 200 MSPS

•

High Dynamic Performance:

well-suited

for

multi-carrier,

wide-bandwidth

–

SNR: 69 dBFS at 170 MHz

SFDR: 85 dBc at 170 MHz

communications applications.

The ADS4128 has fine-gain options that can be used

to improve SFDR performance at lower full-scale

input ranges, especially at high input frequencies. It

includes a dc offset correction loop that can be used

to cancel the ADC offset. At lower sampling rates, the

ADC automatically operates at scaled-down power

with no loss in performance.

•

Dynamic Power Scaling with Sample Rate

Output Interface:

–

Double Data Rate (DDR) LVDS with

Programmable Swing and Strength

–

Standard Swing: 350 mV

Low Swing: 200 mV

The ADS4128 is available in a compact QFN-48

package and is specified over the industrial

temperature range (–40°C to +85°C)

Default Strength: 100-Ω Termination

2x Strength: 50-Ω Termination

–

1.8-V Parallel CMOS Interface Also

Supported

•

Programmable Gain up to 6 dB for SNR and

SFDR Trade-Off

•

DC Offset Correction

Supports Low Input Clock Amplitude Down To

200 mV_PP

•

Package: 7-mm × 7-mm QFN-48

Family Comparison

WITH ANALOG INPUT

BUFFERS

SAMPLING RATE

160 MSPS

FAMILY

65 MSPS

125 MSPS

200 MSPS

250 MSPS

200 MSPS

250 MSPS

ADS412x

12-bit family

ADS4122

ADS4125

ADS4126

ADS4146

ADS4128

ADS4129

—

ADS41B29

ADS414x

14-bit family

ADS4142

ADS4145

—

ADS4149

—

ADS41B49

9-bit

—

ADS58B19

—

11-bit

ADS58B18

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.

PowerPAD is a trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...61

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ADS4122 替代型号

型号	品牌	替代类型	描述	数据表
ADS6122	TI	功能相似	12-BITS, 125/105/80/65 MSPS ADC WITH DDR LVDS/CMOS OUTPUTS
ADS41B29	TI	功能相似	14-/12-Bit, 160/250MSPS, Ultralow-Power ADC
ADS41B25	TI	功能相似	12-Bit, 125MSPS, Ultralow-Power ADC with Analog Buffer

与ADS4122相关器件

型号	品牌	获取价格	描述	数据表
ADS4122_16	TI	获取价格	Ultra Low-Power ADC
ADS4122IRGZR	TI	获取价格	14-/12-Bit, 65/125MSPS, Ultralow-Power ADC
ADS4122IRGZT	TI	获取价格	14-/12-Bit, 65/125MSPS, Ultralow-Power ADC
ADS4125	TI	获取价格	12-Bit, 200-MSPS, Ultralow-Power ADC
ADS4125IRGZR	TI	获取价格	14-/12-Bit, 65/125MSPS, Ultralow-Power ADC
ADS4125IRGZT	TI	获取价格	14-/12-Bit, 65/125MSPS, Ultralow-Power ADC
ADS4126	TI	获取价格	14-/12-Bit, 160/250MSPS, Ultralow-Power ADC
ADS4126_1004	TI	获取价格	14-/12-Bit, 160/250MSPS, Ultralow-Power ADC
ADS4126_101	TI	获取价格	14-/12-Bit, 160/250MSPS, Ultralow-Power ADC
ADS4126_14	TI	获取价格	12-/14-Bit, 160/250MSPS, Ultralow-Power ADC

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