AD1851RZ - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD1851RZ
Manufacturer

ADI
ChipWorker Part#

CW1002342
Category

Digital to Analog, DAC IC
Package

SOIC-16
Description

ANALOG DEVICES AD1851RZ Digital to Analog Converter, 16Bit, 48KSPS, Serial, ± 4.75V to ± 5.25V, WSOIC, 16Pins
Documentation

Datasheet

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AD1851RZ Specifications

Attribute	Attribute Value

Part Number	AD1851RZ
Manufacturer	ADI
ChipWorker Part#	CW1002342
Category	Digital to Analog, DAC IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Supply Voltage (DC)	5.00V (max)
Number of Outputs	2 Output
Supply Current	10 mA
Number of Channels	1 Channel
Number of Positions	16 Position
Number of Bits	16 Bit
Power Dissipation	100 mW
Sample Rate	12.5 Msps
Resolution (Bits)	16.0 Bit
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	-25 ℃
Power Dissipation (Max)	100 mW
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Size-Length	10.5 mm
Size-Width	7.6 mm
Size-Height	2.35 mm
Operating Temperature	-25℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

Product Details
The AD1851/AD1861 is a monolithic PCM audio DAC. The AD1851 is a 16-bit device, while the AD1861 is an 18-bit device. Each device provides a voltage output amplifier, DAC, serial-to-parallel register and voltage reference. The digital portion 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 fabricated 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 harmonic distortion. An optional linearity trim pin is provided to allow residual differential linearity error at midscale to be eliminated. 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, providing 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 input 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 2x, 4x, 8x and 16x 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, making 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.
### Features and Benefits
110 db SNR
Fast Settling Permits 16x 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

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