Datasheet > AFE5801_14

AFE5801_14

更新时间： 2024-11-08 02:58:23

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
46页	1010K
描述
8-Channel Variable-Gain Amplifier (VGA) With Octal High-Speed ADC

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AFE5801_14 数据手册

AFE5801

www.ti.com

SLOS591D –SEPTEMBER 2008–REVISED MAY 2010

8-Channel Variable-Gain Amplifier (VGA) With Octal High-Speed ADC

Check for Samples: AFE5801

FEATURES

RELATED DEVICES

•

AFE5851: 16-Channel VGA + ADC,

32.5MSPS/Channel

•

Eight Variable-Gain Amplifiers (VGA)

–

Eight Differential Buffered Inputs With 2Vpp

Maximum Swing

DESCRIPTION

–

5.5nV/√Hz VCA Input Noise (31dB Gain)

The AFE5801 is an analog front end, targeting

applications where the power and level of integration

are critical. The device contains eight variable-gain

amplifiers (VGA), each followed by a high-speed (up

to 65MSPS) ADC, for a total of eight ADCs per

device.

Variable Gain, –5dB to 31dB With 0.125dB

or 1dB Steps

–

Digital Gain Control

•

Third-Order Antialiasing Filter With

Programmable Cutoff Frequency (7.5, 10, or

14MHz)

Each of the eight differential inputs is buffered,

accepts up to 2Vpp maximum input swing, and is

followed by a VGA with a gain range from –5dB to

31dB. The VGA gain is digitally controlled, and the

gain curves versus time can be stored in memory

integrated within the device using the serial interface.

•

Clamping

Analog-to-Digital Converter (ADC)

–

Octal Channel, 12Bit, 65MSPS

Internal and External Reference Support

No External Decoupling Required for

References

A selectable clamping and antialias low-pass filter

(with 3dB attenuation at 7.5, 10, or 14MHz) is also

integrated between VGA and ADC, for every channel.

–

Serial LVDS Outputs

•

1.8V and 3.3V Supplies

The VGA/antialias filter outputs are differential

(limited to 2Vpp) and drive the onboard 12bit,

65MSPS ADC. The ADC also scales down its power

50mW Total Power per Channel at 30MSPS

58mW Total Power per Channel at 50MSPS

64QFN Package (9mm × 9mm)

consumption should

a lower sampling rate be

selected. The ADC outputs are serialized in LVDS

streams, which further minimizes power and board

area.

APPLICATIONS

•

Imaging: Ultrasound, PET

The AFE5801 is available in a 64-pin QFN package

(9mm × 9mm) and is specified over the full industrial

temperature range (–40°C to 85°C).

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 the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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与AFE5801_14相关器件

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AFE5801IRGCR	TI	获取价格	8-Channel Variable-Gain Amplifier (VGA) With Octal High-Speed ADC
AFE5801IRGCT	TI	获取价格	8-Channel Variable-Gain Amplifier (VGA) With Octal High-Speed ADC
AFE5803	TI	获取价格	Fully Integrated, 8-Channel Ultrasound Analog Front End
AFE5803_14	TI	获取价格	Fully Integrated, 8-Channel Ultrasound Analog Front End, 0.75 nV/rtHz, 14/12-Bit, 65 MSPS,
AFE5803ZCF	TI	获取价格	Fully Integrated, 8-Channel Ultrasound Analog Front End
AFE5804	TI	获取价格	FULLY-INTEGRATED, 8-CHANNEL ANALOG FRONT-END
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AFE5804_17	TI	获取价格	FULLY-INTEGRATED, 8-CHANNEL ANALOG FRONT-END FOR ULTRASOUND 12-Bit, 40MSPS, 101mW/Channel
AFE5804ZCF	TI	获取价格	FULLY-INTEGRATED, 8-CHANNEL ANALOG FRONT-END
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