Datasheet > AD7478ARTZ-500RL7

AD7478ARTZ-500RL7

更新时间： 2024-12-01 14:34:55

品牌	Logo	应用领域
亚德诺 - ADI		PC 光电二极管转换器
页数	文件大小	规格书
24页	334K
描述
8-Bit, 1 MSPS, Low Power Successive Approximation ADC Which Operates From A Single 2.35 V to 5.25 V Power Supply

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1 MSPS, 12-/10-/8-Bit ADCs

in 6-Lead SOT-23

AD7476/AD7477/AD7478

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Fast throughput rate: 1 MSPS

Specified for V_DDof 2.35 V to 5.25 V

Low power

12-/10-/8-BIT

SUCCESSIVE-

APPROXIMATION

ADC

3.6 mW at 1 MSPS with 3 V supplies

15 mW at 1 MSPS with 5 V supplies

Wide input bandwidth

70 dB SNR at 100 kHz input frequency

Flexible power/serial clock speed management

No pipeline delays

SCLK

SDATA

CONTROL

LOGIC

High speed serial interface

AD7476/AD7477/AD7478

SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible

Standby mode: 1 μA maximum

6-lead SOT-23 package

GND

Figure 1.

APPLICATIONS

Battery-powered systems

Personal digital assistants

Medical instruments

Mobile communications

Instrumentation and control systems

Data acquisition systems

High speed modems

Optical sensors

GENERAL DESCRIPTION

PRODUCT HIGHLIGHTS

The AD7476/AD7477/AD7478¹are, respectively, 12-bit, 10-bit,

and 8-bit, high speed, low power, successive approximation

ADCs. The parts operate from a single 2.35 V to 5.25 V power

supply and feature throughput rates up to 1 MSPS. Each part

contains a low noise, wide bandwidth track-and-hold amplifier

that can handle input frequencies in excess of 6 MHz.

1. First 12-/10-/8-Bit ADCs in SOT-23 Packages.

2. High Throughput with Low Power Consumption.

3. Flexible Power/Serial Clock Speed Management. The

conversion rate is determined by the serial clock, allowing

the conversion time to be reduced through the serial clock

speed increase. This allows the average power consumption

to be reduced while not converting. The parts also feature a

shutdown mode to maximize power efficiency at lower

throughput rates. Current consumption is 1 μA maximum

when in shutdown mode.

The conversion process and data acquisition are controlled

using

with microprocessors or DSPs. The input signal is sampled on

and the serial clock, allowing the devices to interface

the falling edge of

and the conversion is initiated at this

point. There are no pipeline delays associated with these parts.

4. Reference Derived from the Power Supply.

The AD7476/AD7477/AD7478 use advanced design techniques

to achieve very low power dissipation at high throughput rates.

The reference for the parts is taken internally from V_DD. This

allows the widest dynamic input range to the ADC. Thus, the

analog input range for the parts are 0 V to V_DD. The conversion

rate is determined by the SCLK.

5. No Pipeline Delay. The parts feature a standard successive-

approximation ADC with accurate control of the sampling

instant via a

input and once-off conversion control.

¹Protected by U.S. Patent No. 6,681,332.

Rev. F

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

12 3 4 5 6 7...24

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AD7478ARTZ-500RL7 替代型号

型号	品牌	替代类型	描述	数据表
AD7478ARTZ-REEL	ADI	完全替代	IC 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO6, PLASTIC, MO-178AB, SOT-2
AD7478ART-REEL	ADI	完全替代	1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23
AD7478ART-500RL7	ADI	完全替代	1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23

与AD7478ARTZ-500RL7相关器件

型号	品牌	获取价格	描述	数据表
AD7478ARTZ-500RL73	ADI	获取价格	1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23
AD7478ARTZ-REEL	ADI	获取价格	IC 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO6, PLASTIC, MO-178AB, SOT-2
AD7478ARTZ-REEL3	ADI	获取价格	1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23
AD7478ARTZ-REEL7	ADI	获取价格	1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23
AD7478ARTZ-REEL7	ROCHESTER	获取价格	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO6, PLASTIC, MO-178AB, SOT-23,
AD7478ARTZ-REEL73	ADI	获取价格	1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23
AD7478AWARMZ	ADI	获取价格	8-Bit, 1 MSPS, Low-Power A/D Converter in SC70 and MSOP Packages
AD7478SRT-500RL7	ADI	获取价格	1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23
AD7478SRT-R2	ROCHESTER	获取价格	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO6, PLASTIC, MO-178AB, SOT-23,
AD7478SRT-R2	ADI	获取价格	1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23

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