AD1851RZ

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Series Information for AD1851RZ - Analog Devices

Features

  • feature
    110 dB SNR Fast Settling Permits 163 Oversampling 63 V Output Optional Trim Allows Super-Linear Performance 65 V Operation 16-Pin Plastic DIP and SOIC Packages Pin-Compatible with AD1856 & AD1860 Audio DACs 2s Complement, Serial Input

Description

IC MONO 16-BIT AUDIO DAC

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 µm 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 ±1 mA output signal. The output amplifier is short circuit 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 register to the parallel DAC input register. The AD1851 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 23, 43, 83 and 163 sampling frequencies. 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, VL, can be separated from the analog supplies, VS and –VS, for reduced 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 voltage supply range of ±4.75 V to ±5.25 V.

Specifications

Resolution (Bits):
16bit
Sampling Rate:
48kSPS
Input Channel Type:
Serial
Supply Voltage Range:
± 4.75V to ± 5.25V
ADC / DAC Case Style:
WSOIC
No. of Pins:
16Pins
Data Interface:
Serial
Operating Temperature Min:
-25°C
Operating Temperature Max:
70°C
Product Range:
AD1851 Series
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (07-Jul-2017)
Supply Current:
10mA

Alternate Descriptions

RS Components
IC,MONO 16-BIT AUDIO DAC
RS Components UK
IC,MONO 16-BIT AUDIO DAC
RS Components DE
16 bit-Bit D/A-Wandler, AD1851RZ, SOIC 16-Pin Montage-Typ : SMD Stromversorgungs-Typ : Dual Referenzspannung : Intern Rücksetzzeit max. : 1.5µs Ausgangspolarität : Bipolar Abmessungen : 10.5 x 7.6 x 2.35mm Länge : 10.5mm Betriebstemperatur max. : +70 °C Betriebstemperatur min. : –25 °C Versorgungsspannung bipolar typ. : ±5V, Analog Devices
RS Components HK
IC,MONO 16-BIT AUDIO DAC
RS Components JP
IC,MONO 16-BIT AUDIO DAC
RS Components FR
IC,MONO 16-BIT AUDIO DAC
RS Components CN
IC,MONO 16-BIT AUDIO DAC
RS Components ES
IC,MONO 16-BIT AUDIO DAC
RS Components NL
IC,MONO 16-BIT AUDIO DAC
RS Components NO
IC,MONO 16-BIT AUDIO DAC
RS Components US
IC,MONO 16-BIT AUDIO DAC
RS Components SG
IC,MONO 16-BIT AUDIO DAC
RS Components TW
IC,MONO 16-BIT AUDIO DAC