ADS4242

更新时间： 2024-09-16 08:19:51

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
97页	3729K
描述
Dual-Channel, 12-/14-Bit, 65/125/160MSPS Ultralow-Power ADC

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ADS4242 数据手册

ADS4222, ADS4225, ADS4226

ADS4242, ADS4245, ADS4246

www.ti.com

SBAS533 –MARCH 2011

Dual-Channel, 12-/14-Bit, 65/125/160MSPS

Ultralow-Power ADC

Check for Samples: ADS4222, ADS4225, ADS4226, ADS4242, ADS4245, ADS4246

FEATURES

APPLICATIONS

•

Wireless Communications Infrastructure

•

Ultralow Power with Single 1.8V Supply, CMOS

Output:

Software Defined Radio

–

211mW total power at 65MSPS

326mW total power at 125MSPS

391mW total power at 160MSPS

Power Amplifier Linearization

DESCRIPTION

The ADS422x/424x are low-speed variants of the

ADS42xx ultralow-power family of dual-channel,

12-bit/14-bit analog-to-digital converters (ADCs).

Innovative design techniques are used to achieve

•

High Dynamic Performance:

–

82dBc SFDR at 170MHz

71.2dBFS SNR at 170MHz

high-dynamic

performance,

while

consuming

•

Crosstalk: > 90dB at 185MHz

extremely low power with 1.8V supply. This topology

makes the ADS422x/424x well-suited for multi-carrier,

wide-bandwidth communications applications.

Programmable Gain up to 6dB for

SNR/SFDR Trade-off

•

DC Offset Correction

The ADS422x/424x have gain options that can be

used to improve SFDR performance at lower

full-scale input ranges. These devices include a dc

offset correction loop that can be used to cancel the

ADC offset. Both DDR (double data rate) LVDS and

parallel CMOS digital output interfaces are available

in a compact QFN-64 PowerPAD™ package.

Output Interface Options:

–

1.8V parallel CMOS interface

Double data rate (DDR) LVDS with

programmable swing:

–

Standard swing: 350mV

Low swing: 200mV

The devices include internal references while the

traditional reference pins and associated decoupling

capacitors have been eliminated. All devices are

specified over the industrial temperature range

(–40°C to +85°C).

•

Supports Low Input Clock Amplitude

Down to 200mV_PP

Package: QFN-64 (9mm × 9mm)

ADS424x/2x Family Comparison⁽¹⁾

65MSPS

125MSPS

160MSPS

250MSPS

ADS422x

12-bit family

ADS4222

ADS4225

ADS4226

ADS4229

ADS424x

14-bit family

ADS4242

ADS4245

ADS4246

ADS4249

(1) See for details on migrating from the ADS62P49 family.

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 Incorporated.

All other trademarks are the property of their respective owners.

PRODUCT PREVIEW information concerns products in the

formative or design phase of development. Characteristic data and

other specifications are design goals. Texas Instruments reserves

the right to change or discontinue these products without notice.

12 3 4 5 6 7...97

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与ADS4242相关器件

型号	品牌	获取价格	描述	数据表
ADS4242IRGCR	TI	获取价格	Dual-Channel, 14-/12-Bit, 160/125/65MSPS Ultralow-Power ADC
ADS4242IRGCT	TI	获取价格	Dual-Channel, 14-/12-Bit, 160/125/65MSPS Ultralow-Power ADC
ADS4245	TI	获取价格	Dual-Channel, 12-/14-Bit, 65/125/160MSPS Ultralow-Power ADC
ADS4245-EP	TI	获取价格	双通道、14 位、125MSPS 模数转换器 (ADC) - 增强型产品
ADS4245IRGC25	TI	获取价格	14 bit 125MSPS Dual Low Power ADC 64-VQFN -40 to 85
ADS4245IRGCR	TI	获取价格	Dual-Channel, 14-/12-Bit, 160/125/65MSPS Ultralow-Power ADC
ADS4245IRGCT	TI	获取价格	Dual-Channel, 14-/12-Bit, 160/125/65MSPS Ultralow-Power ADC
ADS4245MRGC25EP	TI	获取价格	双通道、14 位、125MSPS 模数转换器 (ADC) - 增强型产品 \| RGC \|
ADS4246	TI	获取价格	Dual-Channel, 12-/14-Bit, 65/125/160MSPS Ultralow-Power ADC
ADS4246IRGC25	TI	获取价格	Programmable Gain up to 6dB for SNR/SFDR Trade-off

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