Datasheet > AD7383-4

AD7383-4

更新时间： 2024-11-27 14:57:31

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亚德诺 - ADI		/
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描述
伪差分输入、四通道、4 MSPS同步采样、16位SAR ADC

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AD7383-4 数据手册

Data Sheet

AD7383-4/AD7384-4

Pseudo Differential Input, Quad, 4 MSPS Simultaneous Sampling, 16-Bit/14-Bit,

SAR ADC

FEATURES

FUNCTIONAL BLOCK DIAGRAM

► 16-bit and 14-bit ADC family

► Quad simultaneous sampling

► Pseudo differential analog inputs

► High throughput rate: 4 MSPS

► SNR: 86.7 dB (typical) at V_REF= 3.3 V (AD7383-4)

► On-chip oversampling function

► SNR: 91 dB (typical) with OSR = 8×, RES = 1

► 2-bit resolution boost

► Out of range indicator (ALERT)

► INL: 3.8 LSBs (maximum)

► High speed serial interface

► Temperature range: −40°C to +125°C

► 24-lead, 4 mm × 4 mm LFCSP

Figure 1. Functional Block Diagram

GENERAL DESCRIPTION

APPLICATIONS

The 16-bit AD7383-4 and 14-bit AD7384-4 are pin-compatible,

quad, simultaneous sampling, high speed, successive approxima-

tion register (SAR), analog-to-digital converters (ADCs) operating

from a 3.0 V to 3.3 V power supply with throughput rates up to

4 MSPS. The analog input type is a pseudo differential and is

sampled and converted on the falling edge of CS.

► Motor control position feedback

► Motor control current sense

► Data acquisition systems

► Erbium-doped fiber amplifier (EDFA) applications

► Inphase and quadrature demodulation

The AD7383-4/AD7384-4 have on-chip oversampling blocks to

improve dynamic range and reduce noise at lower bandwidths. The

oversampling boosts up to two bits of added resolution. A buffered

internal 2.5 V reference is included. Alternatively, an external refer-

ence up to 3.3 V can be used.

PRODUCT HIGHLIGHTS

1. Quad simultaneous sampling and conversion.

2. Pin-compatible product family.

3. High 4 MSPS throughput rate.

The conversion process and data acquisition use standard control

inputs allowing easy interfacing to microprocessors or digital signal

processors (DSPs). The conversion result can clock out simultane-

ously via 4-wire mode for faster throughput or via 1-wire serial

mode when slower throughput is allowed. The devices are compati-

ble with 1.8 V, 2.5 V, and 3.3 V interfaces using the separate logic

supply.

4. Space-saving 4 mm × 4 mm LFCSP.

5. Integrated oversampling block to increase dynamic range, re-

duce noise, and reduce SCLK speed requirements.

6. Pseudo differential analog inputs.

7. Small sampling capacitor reduces amplifier drive burden.

The AD7383-4/AD7384-4 are available in a 24-lead, 4 mm × 4 mm

LFCSP and a temperature range of −40°C to +125°C.

Table 1. Related Devices

No. of

Channels

Input Type

16 Bits

14 Bits

12 Bits

Differential

AD7380-4

AD7389-4

AD7380

AD4680

AD4681

AD7386

AD7381‑4

Differential

AD7381

AD7387

Single-ended

AD7388

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable "as is". 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

registered trademarks are the property of their respective owners.

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与AD7383-4相关器件

型号	品牌	获取价格	描述	数据表
AD7384	ADI	获取价格	Differential Inputs, 1 MSPS/500 kSPS, Dual Simultaneous Sampling SAR ADCs
AD7384-4	ADI	获取价格	伪差分输入、四通道、4 MSPS同步采样、14位SAR ADC
AD7386	ADI	获取价格	Differential Input, Quad, Internal Reference Simultaneous Sampling, 16-Bit SAR ADC
AD7386-4	ADI	获取价格	Single-Ended Input, Quad, Simultaneous Sampling, 16-Bit/14-Bit/12-Bit, SAR ADC
AD7387	ADI	获取价格	Differential Input, Quad, External Reference Simultaneous Sampling, 16-Bit, SAR ADC
AD7387-4	ADI	获取价格	Evaluating the AD7386-4 Family, 4-Channel, Simultaneous Sampling, Successive Approximation
AD7388	ADI	获取价格	Differential Input, Quad, Internal Reference Simultaneous Sampling, 16-Bit SAR ADC
AD7388-4	ADI	获取价格	Single-Ended Input, Quad, Simultaneous Sampling, 16-Bit/14-Bit/12-Bit, SAR ADC
AD7389-4	ADI	获取价格	Differential Input, Quad,14-Bit, Simultaneous Sampling, SAR ADC
AD7389-4BCPZ	ADI	获取价格	Differential Input, Quad, Internal Reference Simultaneous Sampling, 16-Bit SAR ADC

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