AD7874SQ - ADI

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

Part No

AD7874SQ
Manufacturer

ADI
ChipWorker Part#

CW20295763
Category

Analog to Digital, ADC IC
Package

CDIP-28
Description

Quad Channel Single ADC SAR 116KSPS 12Bit Parallel 28Pin CDIP Tube
Documentation

Datasheet

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AD7874SQ Specifications

Attribute	Attribute Value

Part Number	AD7874SQ
Manufacturer	ADI
ChipWorker Part#	CW20295763
Category	Analog to Digital, ADC IC
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	28 Pin
Case/Package	CDIP-28
Digital Logic Level	SAR
Number of Circuits	1 Circuit
Number of Channels	4 Channel
Number of Bits	12 Bit
Power Dissipation	100 mW
Sample Rate	116 ksps
Power Consumption	100 mW
Resolution (Bits)	12.0 Bit
Input Impedance	9.00 GΩ
Number of ADCs	1 ADC
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-55 ℃
Power Dissipation (Max)	150 mW
Number of Input Channels	4 Channel
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Size-Length	37.85 mm
Size-Width	15.49 mm
Size-Height	5.34 mm
Operating Temperature	-55℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	Non-Compliant
Lead-Free Status	Contains Lead
Mil-Spec	Yes
ECCN Code	EAR99
HK STC License	NLR

Product Description

Product Details
The AD7874 is a four-channel simultaneous sampling, 12-bit data acquisition system. The part contains a high speed 12-bit ADC, on chip reference, on-chip clock and four track/hold amplifiers. This latter feature allows the four input channels to be sampled simultaneously, thus preserving the relative phase information of the four input channels, which is not possible if all four channels share a single track/hold amplifier. This makes the AD7874 ideal for applications such as phased-array sonar and ac motor controllers where the relative phase information is important.
The aperture delay of the four track/hold amplifiers is small and specified with minimum and maximum limits. This allows several AD7874s to sample multiple input channels simultaneously without incurring phase errors between signals connected to several devices. A reference output/reference input facility also allows several AD7874s to be driven from the same reference source.
In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the AD7874 is also fully specified for dynamic performance parameters including distortion and signal-to-noise ratio.
The AD7874 is fabricated in Analog Devices" Linear Compatible CMOWS (LC2MOS) process, a mixed technology process that combines precision bipolar circuits with low-power CMOS logic. The part is available in a 28-pin, 0.6" wide, plastic or hermetic dual-in-line package (DIP), in a 28-terminal leadless ceramic chip carrier (LCCC) and in a 28-pin SOIC.
### Features and Benefits
Four On-Chip Track/Hold Amplifiers
Simultaneous Sampling of 4 Channels
Fast 12-Bit ADC with 8 µs Conversion Time/Channel
29 kHz Sample Rate for All Four Channels
On-Chip Reference
±10 V Input Range
±5 V Supplies

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