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Part Number: ADS5103
Description: The ADS5102/3 are low-power CMOS, 10-bit, analogto- digital converters (ADC) that operate from a single 1.8-V supply. T...
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ADS5103
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DataSheet
General Description
ADS5103 General Description
The ADS5102/3 are low-power CMOS, 10-bit, analogto- digital converters (ADC) that operate from a single 1.8-V supply. The internal reference can be bypassed to use an external reference to suit the dc accuracy and temperature drift requirements of the application. A 10-bit parallel output data bus is provided with 3-state outputs. For power sensitive systems, a standby mode is provided which reduces power consumption to 336 µW. Also, if using external voltage reference, then the internal VREF circuit can be powered down. The analog input is differential, which provides excellent common-mode noise rejection as well as superior performance from the ADS5102/3.
ADS5103 Maximum Ratings
TERMINAL NAME NO. |
I/O | DESCRIPTION | |
| AVDD | 2, 41, 46 | I | Analog supply, 1.8V ±5% |
| AGND | 3, 9, 42, 45 | I | Analog ground |
| REFT | 4 | I/O | Reference top |
| REFB | 5 | I/O | Reference bottom |
| CML | 6 | O | Common mode level output-nominally 1.0 V |
| BG | 7 | O | Band-gap decoupling-decouple with 1 µF to GND and 100 kΩ to AVDD (refer to Figure 30) |
| PDREF | 17 | I | Powerdown reference when using external voltage reference 0 = internal VREF, 1 = external VREF. In external VREF mode, connect pins BG and REFT together. |
| RBIAS | 14 | O | Connect a resistor between this pin and AGND. This resistor value is determined by speed grade selected and is used to set amplifier internal bias currents. (see Table 2) |
| OE | 18 | I | 1 = 3-state the data outputs , 0 = data bus enable |
| STBY | 19 | I | 0 = power down mode, 1 = normal operation mode |
| CLK | 20 | I | Clock Input |
| DGND | 21, 40 | I | Digital ground |
| DVDD | 22, 39 | I | Digital supply-1.8 V nominally |
| DRVDD | 24 | I | Driver digital supply-1.8 V or 3.3 V nominally |
| D9 | 25 | O | Digital Bit 9 (MSB) |
| D8 | 26 | O | Digital Bit 8 |
| D7 | 27 | O | Digital Bit 7 |
| D6 | 28 | O | Digital Bit 6 |
| D5 | 29 | O | Digital Bit 5 |
| D4 | 30 | O | Digital Bit 4 |
| D3 | 31 | O | Digital Bit 3 |
| D2 | 32 | O | Digital Bit 2 |
| D1 | 33 | O | Digital Bit 1 |
| D0 | 34 | O | Digital Bit 0 |
| DRGND | 37 | I | Driver digital ground |
| AIN+ | 44 | I | Positive analog input |
| AIN | 43 | I | Negative analog input |
| NC | 1,8,10,11,12, 13,15,16,23,35, 36, 38,47,48 |
NA | No internal connection on this pin |
ADS5103 Features
ADS5102 (65 MSPS) ADS5103 (40 MSPS)
Differential Input
1.8 V Analog/Digital Supply
Digital Outputs Compatible With 1.8 V or 3.3 V Logic
Signal-to-Noise: 58 dB at 20 MHz (ADS5103)
Spurious Free Dynamic Range: 71 dB at 20 MHz (ADS5102)
105-mW Power Dissipation (ADS5103)
336 µW Power-Down Mode
Differential Input
1.8 V Analog/Digital Supply
Digital Outputs Compatible With 1.8 V or 3.3 V Logic
Signal-to-Noise: 58 dB at 20 MHz (ADS5103)
Spurious Free Dynamic Range: 71 dB at 20 MHz (ADS5102)
105-mW Power Dissipation (ADS5103)
336 µW Power-Down Mode
ADS5103 Typical Application
Ultrasound
Digital Cameras
Imaging
Communications
Baseband Digitization
Digital Cameras
Imaging
Communications
Baseband Digitization
ADS5103 Connection Diagram
ADS5103
PDF/DataSheet Download
- Datasheet: ADS5103
- File Size: 342593 KB
- Manufacturer:
- Click here to Download
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