AD1866N Analog Devices Inc, AD1866N Datasheet

AD1866N

Manufacturer Part Number

AD1866N

Description

IC DAC AUDIO 16BIT DUAL 16-DIP

Manufacturer

Analog Devices Inc

Datasheet

1.AD1866RZ-REEL.pdf (12 pages)

Specifications of AD1866N

Rohs Status

RoHS non-compliant

Number Of Bits

Data Interface

Serial

Number Of Converters

Voltage Supply Source

Analog and Digital

Power Dissipation (max)

70mW

Operating Temperature

-35°C ~ 85°C

Mounting Type

Through Hole

Package / Case

16-DIP (0.300", 7.62mm)

Settling Time

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

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Bonase Electronics (HK) Co., Limited

Part Number:

AD1866NZ

Manufacturer:

Quantity:

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PRODUCT DESCRIPTION

The AD1866 is a complete dual 16-bit DAC offering excellent

performance while requiring a single +5 V power supply. It is

fabricated on Analog Devices’ ABCMOS wafer fabrication

process. The monolithic chip includes CMOS logic elements,

bipolar and MOS linear elements and laser trimmed, thin-

film resistor elements. Careful design and layout techniques

have resulted in low distortion, low noise, high channel separa-

tion and low power dissipation.

The DACs on the AD1866 chip employ a partially segmented

architecture. The first three MSBs of each DAC are segmented

into 7 elements. The 13 LSBs are produced using standard

R-2R techniques. The segments and R-2R resistors are laser

trimmed to provide extremely low total harmonic distortion.

The AD1866 requires no deglitcher or trimming circuitry.

Each DAC is equipped with a high performance output ampli-

fier. These amplifiers achieve fast settling and high slew rate,

producing 1 V signals at load currents up to 1 mA. The buff-

ered output signal range is 1.5 V to 3.5 V. The 2.5 V reference

voltages eliminate the need for “false ground” networks.

A versatile digital interface allows the AD1866 to be directly

connected to all digital filter chips. Fast CMOS logic elements

allow for an input clock rate of up to 16 MHz. This allows for

operation at 2 , 4 , 8 , or 16 the sampling frequency (where

AD1866 are TTL and +5 V CMOS compatible.

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

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

otherwise under any patent or patent rights of Analog Devices.

= 44.1 kHz) for each channel. The digital input pins of the

FEATURES

Dual Serial Input, Voltage Output DACs

Single +5 Volt Supply

0.005% THD+N

Low Power –50 mW

115 dB Channel Separation

Operates at 8

16-Pin Plastic DIP or SOIC Package

APPLICATIONS

Multimedia Workstations

PC Audio Add-In Boards

Portable CD and DAT Players

Automotive CD and DAT Players

Noise Cancellation

Oversampling

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

Tel: 617/329-4700

The AD1866 operates on +5 V power supplies. The digital

supply, V

duced digital feedthrough. Separate analog and digital ground

pins are also provided. In systems employing a single +5 volt

power supply, V

tery operated systems, operation will continue even with re-

duced supply voltage. Typically, the AD1866 dissipates 50 mW.

The AD1866 is packaged in either a 16-pin plastic DIP or a

16-pin plastic SOIC package. Operation is guaranteed over the

temperature range of –35 C to +85 C and over the voltage

supply range of 4.75 V to 5.25 V.

PRODUCT HIGHLIGHTS

1. Single supply operation @ +5 V.

2. 50 mW power dissipation.

3. THD+N is 0.005% (typical).

4. Signal-to-Noise Ratio is 95 dB (typical).

5. 115 dB channel separation (typical).

6. Compatible with all digital filter chips.

7. 16-pin DIP and 16-pin SOIC packages.

8. No deglitcher required.

9. No external adjustments required.

DGND

, can be separated from the analog supply, V

CLK

FUNCTIONAL BLOCK DIAGRAM

and V

Dual 16-Bit Audio DAC

SERIAL

16-BIT

DAC

should be connected together. In bat-

AD1866

V REF

REF

Single Supply

AD1866

Fax: 617/326-8703

NRL

NRR

AGND

, for re-

Related parts for AD1866N

AD1866N Summary of contents

Page 1

FEATURES Dual Serial Input, Voltage Output DACs Single +5 Volt Supply 0.005% THD+N Low Power –50 mW 115 dB Channel Separation Operates at 8 Oversampling 16-Pin Plastic DIP or SOIC Package APPLICATIONS Multimedia Workstations PC Audio Add-In Boards Portable ...

Page 2

... DRIFT ( +70 C) Gain Drift Midscale Drift TOTAL HARMONIC DISTORTION + NOISE 0 dB, 990.5 Hz AD1866N AD1866R –20 dB, 990.5 Hz AD1866N AD1866R –60 dB, 990.5 Hz AD1866N AD1866R CHANNEL SEPARATION (1 kHz, 0 dB) SIGNAL-TO-NOISE RATIO (With A-Weight Filter) D-RANGE (With A-Weight Filter) OUTPUT Voltage Output Pins ( Output Range ( 3%) ...

Page 3

FREQUENCY – Hz Figure 1. THD+N vs. Frequency 125 124 123 122 121 120 FREQUENCY – Hz Figure 2. Channel Separation vs. Frequency –30 ...

Page 4

... DAC Model AD1866N AD1866R AD1866R-REEL *Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute ...

Page 5

TOTAL HARMONIC DISTORTION + NOISE Total harmonic distortion plus noise (THD+N) is defined as the ratio of the square root of the sum of the squares of the am- plitudes of the harmonics and noise to the amplitude of the ...

Page 6

AD1866–Analog Circuit Considerations GROUNDING RECOMMENDATIONS The AD1866 has two ground pins, designated as AGND (Pin 12) and DGND (Pin 7). The analog ground, AGND, serves as the “high quality” reference ground for analog signals and as a return path for ...

Page 7

FALSE GROUND (2.5V Figure 8a. Schematic Using False Ground Figure 8a illustrates the traditional approach used to generate false ground voltages in single supply audio systems. This cir- ...

Page 8

AD1866–Digital Circuit Considerations CLK INPUT DATA The digital input port of the AD1866 employs five signals: Data Left (DL), Data Right (DR), Latch Left (LL), Latch Right (LR), and Clock ...

Page 9

APPLICATIONS OF THE AD1866 The AD1866 is a high performance audio DAC specifically de- signed for portable and automotive digital audio applications. These market segments have technical requirements fundamen- tally different than those found in the high-end or home use ...

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AD1866N Analog Devices Inc, AD1866N Datasheet

AD1866N

Specifications of AD1866N

Available stocks

Related parts for AD1866N

AD1866N Summary of contents

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