AD1851R-J Analog Devices Inc, AD1851R-J Datasheet

AD1851R-J

Manufacturer Part Number

AD1851R-J

Description

IC DAC AUDIO FASTSET 16B 16SOIC

Manufacturer

Analog Devices Inc

Datasheet

1.AD1851RZ.pdf (12 pages)

Specifications of AD1851R-J

Rohs Status

RoHS non-compliant

Settling Time

1.5µs

Number Of Bits

Data Interface

Serial

Number Of Converters

Voltage Supply Source

Dual ±

Power Dissipation (max)

100mW

Operating Temperature

-25°C ~ 70°C

Mounting Type

Surface Mount

Package / Case

16-SOIC (0.300", 7.5mm Width)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

AD1851R-J

Manufacturer:

ADI/亚德诺

Quantity:

20 000

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PRODUCT DESCRIPTION

The AD1851/AD1861 is a monolithic PCM audio DAC. The

AD1851 is a 16-bit device, while the AD1861 is an 18-bit de-

vice. Each device provides a voltage output amplifier, DAC,

serial-to-parallel register and voltage reference. The digital por-

tion of the AD1851/AD1861 is fabricated with CMOS logic

elements that are provided by Analog Devices’ 2 m ABCMOS

process. The analog portion of the AD1851/AD1861 is fabri-

cated with bipolar and MOS devices as well as thin-film

resistors.

This combination of circuit elements, as well as careful design

and layout techniques, results in high performance audio play-

back. Laser-trimming of the linearity error affords low total har-

monic distortion. An optional linearity trim pin is provided to

allow residual differential linearity error at midscale to be elimi-

nated. This feature is particularly valuable for low distortion

reproductions of low amplitude signals. Output glitch is also

small, contributing to the overall high level of performance. The

output amplifier achieves fast settling and high slew rates, pro-

viding a full 3 V signal at load currents up to 8 mA. When

used in current output mode, the AD1851/AD1861 provides a

protected and can withstand indefinite shorts to ground.

The serial input interface consists of the clock, data and latch

enable pins. The serial 2s complement data word is clocked into

the DAC, MSB first, by the external clock. The latch enable

signal transfers the input word from the internal serial input

clock can support a 12.5 MHz data rate, while the AD1861 in-

put clock can support a 13.5 MHz data rate. This serial input

port is compatible with second generation digital filter chips

used in consumer audio products. These filters operate at over-

sampling rates of 2 , 4 , 8

REV. A

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

1 mA output signal. The output amplifier is short circuit

FEATURES

110 dB SNR

Fast Settling Permits 16

Optional Trim Allows Super-Linear Performance

16-Pin Plastic DIP and SOIC Packages

Pin-Compatible with AD1856 & AD1860 Audio DACs

2s Complement, Serial Input

APPLICATIONS

High-End Compact Disc Players

Digital Audio Amplifiers

DAT Recorders and Players

Synthesizers and Keyboards

3 V Output

5 V Operation

and 16

Oversampling

sampling frequencies.

be separated from the analog supplies, V

digital crosstalk. Separate analog and digital ground pins are

also provided. Power dissipation is 100 mW typical.

The AD1851/AD1861 is available in either a 16-pin plastic DIP

or a 16-pin plastic SOIC package. Both packages incorporate

the industry standard pinout found on the AD1856 and

AD1860 PCM audio DACs. As a result, the AD1851/AD1861

is a drop-in replacement for designs where 5 V supplies have

been used with the AD1856/AD1860. Operation is guaranteed

over the temperature range of –25 C to +70 C and over the

PRODUCT HIGHLIGHTS

l. AD1851 16-bit resolution provides 96 dB dynamic range.

2. No external components are required.

3. Operates with 5 V supplies.

4. Space saving 16-pin SOIC and plastic DIP packages.

5. 100 mW power dissipation.

6. High input clock data rates and 1.5 s settling time permits

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

Tel: 617/329-4700

The critical specifications of THD+N and signal-to-noise ratio

are 100% tested for all devices.

The AD1851/AD1861 operates with 5 V power supplies, mak-

ing it suitable for home use markets. The digital supply, V

voltage supply range of 4.75 V to 5.25 V.

7. 3 V or 1 mA output capability.

8. THD + Noise and SNR are 100% tested.

9. Pin-compatible with AD1856 & AD1860 PCM audio DACs.

AD1861 18-bit resolution provides 108 dB dynamic range.

2 , 4 , 8

DGND

DATA

CLK

–V

FUNCTIONAL BLOCK DIAGRAM

and 16

16-Bit/18-Bit, 16

AD1851/

AD1861

CONTROL

NC = NO CONNECT

LOGIC

LATCH

SERIAL

oversampling.

INPUT

AD1851/AD1861

PCM Audio DACs

DAC

OUT

and –V

TRIM

AGND

MSB ADJ

OUT

Fax: 617/326-8703

, for reduced

, can

Related parts for AD1851R-J

AD1851R-J Summary of contents

Page 1

FEATURES 110 dB SNR Fast Settling Permits 16 Oversampling 3 V Output Optional Trim Allows Super-Linear Performance 5 V Operation 16-Pin Plastic DIP and SOIC Packages Pin-Compatible with AD1856 & AD1860 Audio DACs 2s Complement, Serial Input APPLICATIONS High-End ...

Page 2

AD1851/AD1861–SPECIFICATIONS DIGITAL INPUTS 0 ACCURACY Gain Error Midscale Output Voltage DRIFT ( +70 C) Total Drift Bipolar Zero Drift SETTLING ...

Page 3

AD1851 RESOLUTION TOTAL HARMONIC DISTORTION + NOISE 0 dB, 990.5 Hz AD1851N-J, R-J AD1851N, R –20 dB, 990.5 Hz AD1851N-J, R-J AD1851N, R –60 dB, 990.5 Hz AD1851N-J, R-J AD1851N, R D-RANGE* (With A-Weight Filter) –60 dB, 990.5 Hz AD1851N, ...

Page 4

... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ORDERING GUIDE Model Resolution THD + N AD1851N 16 Bits 0.008% AD1851N-J 16 Bits 0.004% AD1851R 16 Bits 0.008% AD1851R-J 16 Bits 0.004% AD1861N 18 Bits 0.008% AD1861N-J 18 Bits 0.004% AD1861R 18 Bits 0.008% AD1861R-J 18 Bits 0.004 Plastic DIP Package ...

Page 5

TOTAL HARMONIC DISTORTION Total harmonic distortion plus noise (THD+N) is defined as the ratio of the square root of the sum of the squares of the val- ues of the first 19 harmonics and noise to the value of the ...

Page 6

AD1851/AD1861 Analog Circuit Considerations GROUNDING RECOMMENDATIONS The AD1851/AD1861 has two ground pins, designated Analog and Digital ground. The analog ground pin is the “high quality” ground reference point for the device. The analog ground pin should be connected to the ...

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AD1851R-J Analog Devices Inc, AD1851R-J Datasheet

AD1851R-J

Specifications of AD1851R-J

Available stocks

Related parts for AD1851R-J

AD1851R-J Summary of contents

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