| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 48 Pin |
| Supply Voltage (DC) | 4.75V (min) |
| Case/Package | VQFN-48 |
| Supply Current | 14.0 mA |
| Number of Circuits | 2 Circuit |
| Number of Channels | 4 Channel |
| Number of Positions | 48 Position |
| Number of Bits | 20 Bit |
| Power Dissipation | 72 mW |
| Sample Rate | 3.125 ksps |
| Power Consumption | 54.0 mW |
| Number of ADCs | 2 ADC |
| Number of Inputs | 4 Input |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 100 mW |
| Number of Input Channels | 4 Channel |
| Supply Voltage (Max) | 5.25 V |
| Supply Voltage (Min) | 4.75 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Size-Length | 7 mm |
| Size-Width | 7 mm |
| Size-Height | 0.9 mm |
| Operating Temperature | -40℃ ~ 85℃ |
The DDC114IRTCT is a 20-bit quad channel current-input Analog-to-digital Converter (ADC) combines both current-to-voltage and A/D conversion so that four low-level current output devices, such as photodiodes can be directly connected to its inputs and digitized. For each of the four inputs, the DDC114 provides a dual-switched integrator front-end. This design allows for continuous current integration: while one integrator is being digitized by the on board A/D converter, the other is integrating the input current. Adjustable full-scale ranges from 12 to 350pC and adjustable integration times from 50µs to 1s allow currents from fAs to µAs to be measured with outstanding precision. Low-level linearity is ±0.5ppm of the full-scale range and noise is 5.2ppm of the full-scale range. Two modes of operation are provided. In low-power mode, total power dissipation is only 13.5mW per channel with a maximum data rate of 2.5kSPS.
● Single-chip solution to directly measure four low-level currents
● High precision, true integrating function
● Integral linearity
● Programmable full scale
● Daisy-chainable serial interface
● Green product and no Sb/Br
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