Product Summary

The DDC112Y/250 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 photosensors, 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. The applications of the DDC112Y/250 are (1)direct photosensor digitization; (2)ct scanner das; (3)infrared pyrometer; (4)precision process control; (5)liquid/gas chromatography; (6)blood analysis.

Parametrics

DDC112Y/250 absolute maximum ratings: (1)AVDD to DVDD: –0.3V to +6V; (2)AVDD to AGND: –0.3V to +6V; (3)DVDD to DGND: –0.3V to +6V; (4)AGND to DGND: ±0.3V; (5)VREF Voltage to AGND: –0.3V to AVDD +0.3V; (6)Digital Input Voltage to DGND: –0.3V to DVDD +0.3V; (7)Digital Output Voltage to DGND: –0.3V to DVDD +0.3V; (8)Package Power Dissipation: (TJMAX – TA)/θJA; (9)Maximum Junction Temperature (TJMAX): +150℃; (10)Thermal Resistance, θJA: 150℃/W; (11)Lead Temperature (soldering, 10s): +300℃.

Features

DDC112Y/250 features: (1)monolithic charge measurement adc; (2)digital filter noise reduction: 3.2ppm, rms; (3)integral linearity: ±0.005% reading ±0.5ppm fsr; (4)high precision, true integrating function; (5)programmable full scale; (6)single supply; (7)cascadable output.

Diagrams

DDC112Y/250 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
DDC112Y/250
DDC112Y/250

Texas Instruments

ADC (A/D Converters) Dual Current Input 20-Bit

Data Sheet

0-167: $15.02
167-250: $13.36
250-500: $13.19
DDC112Y/250G4
DDC112Y/250G4

Texas Instruments

ADC (A/D Converters) Dual Current Input 20-Bit

Data Sheet

0-186: $13.49
186-250: $13.09
250-500: $12.70