DDC112U - TI

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

Part No

DDC112U
Manufacturer

TI
ChipWorker Part#

CW15384230
Category

Analog to Digital, ADC IC
Package

SOIC-28
Description

TEXAS INSTRUMENTS DDC112U Analog to Digital Converter, 20Bit, 3KSPS, Single, 4.75V, 5.25V, SOIC
Documentation

Datasheet

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DDC112U Specifications

Attribute	Attribute Value

Part Number	DDC112U
Manufacturer	TI
ChipWorker Part#	CW15384230
Category	Analog to Digital, ADC IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	28 Pin
Case/Package	SOIC-28
Supply Voltage (DC)	4.75V (min)
Operating Voltage	4.75V ~ 5.25V
Supply Current	14.8 mA
Number of Circuits	1 Circuit
Number of Channels	2 Channel
Number of Positions	28 Position
Number of Bits	20 Bit
Power Dissipation	80 mW
Sample Rate	3 ksps
Power Consumption	80.0 mW
Number of ADCs	1 ADC
Number of Inputs	2 Input
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	100 mW
Number of Input Channels	2 Channel
Supply Voltage (Max)	5.25 V
Supply Voltage (Min)	4.75 V
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Size-Length	18 mm
Size-Width	7.52 mm
Size-Height	2.35 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The DDC112U is a dual input wide dynamic range charge-digitizing Analog-to-digital Converter (ADC) with 20-bit resolution. Low-level current output devices such as photo sensors can be directly connected to its inputs. Charge integration is continuous as each input uses two integrators, while one is being digitized, the other is integrating. For each of its two inputs, the ADC combines current-to-voltage conversion, continuous integration, programmable full-scale range, A/D conversion and digital filtering to achieve a precision, wide dynamic range digital result. In addition to the internal programmable full-scale ranges, external integrating capacitors allow an additional user-settable full-scale range of up to 1000pC. To provide single-supply operation, the internal A/D converter utilizes a differential input with the positive input tied to VREF. This charge is removed in proportion to the input current. At the end of the integration cycle, the remaining voltage is compared to VREF.
Monolithic charge measurement
Digital filter noise reduction
High precision, true integrating function
Programmable full scale
Single supply
Cascadable output
Green product and no Sb/Br

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