AD7927BRUZ Analog Devices Inc, AD7927BRUZ Datasheet

AD7927BRUZ

Manufacturer Part Number

AD7927BRUZ

Description

IC ADC 12BIT 8CH 200KSPS 20TSSOP

Manufacturer

Analog Devices Inc

Datasheets

1.AD7927BRU-REEL7.pdf (28 pages)

2.AD7927BRUZ.pdf (20 pages)

Specifications of AD7927BRUZ

Data Interface

DSP, MICROWIRE™, QSPI™, Serial, SPI™

Number Of Bits

Sampling Rate (per Second)

200k

Number Of Converters

Power Dissipation (max)

7.5mW

Voltage Supply Source

Single Supply

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

20-TSSOP (0.173", 4.40mm Width)

Resolution (bits)

12bit

Sampling Rate

200kSPS

Input Channel Type

Single Ended

Supply Voltage Range - Analog

2.7V To 5.25V

Supply Current

1.5mA

Number Of Elements

Resolution

12Bit

Architecture

SAR

Sample Rate

200KSPS

Input Polarity

Unipolar

Input Type

Voltage

Rated Input Volt

2.5/5V

Differential Input

Power Supply Requirement

Analog and Digital

Single Supply Voltage (typ)

3/5V

Single Supply Voltage (min)

2.7V

Single Supply Voltage (max)

5.25V

Dual Supply Voltage (typ)

Not RequiredV

Dual Supply Voltage (min)

Not RequiredV

Dual Supply Voltage (max)

Not RequiredV

Power Dissipation

7.5mW

Differential Linearity Error

-0.9LSB/1.5LSB

Integral Nonlinearity Error

±1LSB

Operating Temp Range

-40C to 85C

Operating Temperature Classification

Industrial

Mounting

Surface Mount

Pin Count

Package Type

TSSOP

Input Signal Type

Single-Ended

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

For Use With

EVAL-AD7927CBZ - BOARD EVALUATION FOR AD7927

Lead Free Status / Rohs Status

Compliant

Available stocks

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Bonase Electronics (HK) Co., Limited

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AD7927BRUZ

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ADI

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AD7927BRUZ-REEL7

Manufacturer:

ADI

Quantity:

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AD7927BRUZ-REEL7

Manufacturer:

ADI

Quantity:

1 000

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GENERAL DESCRIPTION

The AD7927 is a 12-bit, high speed, low power, 8-channel,

successive-approximation ADC. The part operates from a single

2.7 V to 5.25 V power supply and features throughput rates up

to 200 kSPS. The part contains a low noise, wide bandwidth

track-and-hold amplifier that can handle input frequencies in

excess of 8 MHz.

The conversion process and data acquisition are controlled

using CS and the serial clock signal, allowing the device to

easily interface with microprocessors or DSPs. The input signal

is sampled on the falling edge of CS and the conversion is also

initiated at this point. There are no pipeline delays associated

with the part.

The AD7927 uses advanced design techniques to achieve very low

power dissipation at maximum throughput rates. At maximum

throughput rates, the AD7927 consumes 1.2 mA maximum

with 3 V supplies; with 5 V supplies, the current consumption is

1.5 mA maximum.

Through the configuration of the Control Register, the analog

input range for the part can be selected as 0 V to REF

2 ¥ REF

coding. The AD7927 features eight single-ended analog inputs

with a channel sequencer to allow a preprogrammed selection of

channels to be converted sequentially.

The conversion time for the AD7927 is determined by the SCLK

frequency, as this is also used as the master clock to control the

conversion. The conversion time may be as short as 800 ns with

a 20 MHz SCLK.

REV. 0

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. 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 companies.

FEATURES

Fast Throughput Rate: 200 kSPS

Specified for AV

Low Power:

8 (Single-Ended) Inputs with Sequencer

Wide Input Bandwidth:

Flexible Power/Serial Clock Speed Management

No Pipeline Delays

High Speed Serial Interface SPI™/QSPI™/

Shutdown Mode: 0.5 A Max

20-Lead TSSOP Package

3.6 mW Max at 200 kSPS with 3 V Supply

7.5 mW Max at 200 kSPS with 5 V Supply

70 dB Min SINAD at 50 kHz Input Frequency

MICROWIRE™/DSP Compatible

, with either straight binary or twos complement output

of 2.7 V to 5.25 V

or 0 V to

with Sequencer in 20-Lead TSSOP

8-Channel, 200 kSPS, 12-Bit ADC

REF

PRODUCT HIGHLIGHTS

1. High Throughput with Low Power Consumption.

2. Eight Single-Ended Inputs with a Channel Sequencer.

3. Single-Supply Operation with V

4. Flexible Power/Serial Clock Speed Management.

5. No Pipeline Delay.

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

Tel: 781/329-4700

Fax: 781/326-8703

•

The AD7927 offers up to 200 kSPS throughput rates. At the

maximum throughput rate with 3 V supplies, the AD7927

dissipates 3.6 mW of power maximum.

A consecutive sequence of channels, through which the ADC

will cycle and convert on, can be selected.

The AD7927 operates from a single 2.7 V to 5.25 V supply. The

to either 3 V or 5 V processor systems independent of AV

The conversion rate is determined by the serial clock, allowing

the conversion time to be reduced through the serial clock

speed increase. The part also features various shutdown modes

to maximize power efficiency at lower throughput rates. Current

consumption is 0.5 mA maximum when in full shutdown.

The part features a standard successive-approximation ADC

with accurate control of the sampling instant via a CS input

and once off conversion control.

DRIVE

function allows the serial interface to connect directly

MUX

FUNCTIONAL BLOCK DIAGRAM

I/P

AD7927

SEQUENCER

T/H

GND

APPROXIMATION

DRIVE

CONTROL LOGIC

SUCCESSIVE

12-BIT

ADC

Function.

AD7927

www.analog.com

SCLK

DOUT

DIN

DRIVE

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