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ADS62C17IRGCR from TEXASINSTRUM

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ADS62C17IRGCR

Manufacturer: TEXASINSTRUM, TI

Dual Channel 11 Bit, 200 MSPS ADC with SNRBoost 64-VQFN -40 to 85

Partnumber Manufacturer Quantity Availability
ADS62C17IRGCR TEXASINSTRUM, TI 3210 In Stock

Description and Introduction

Dual Channel 11 Bit, 200 MSPS ADC with SNRBoost 64-VQFN -40 to 85 The ADS62C17IRGCR is a high-speed analog-to-digital converter (ADC) manufactured by Texas Instruments (TI). Below are the key specifications:

- **Resolution**: 16-bit
- **Sampling Rate**: Up to 250 MSPS (Mega Samples Per Second)
- **Input Type**: Differential
- **Input Voltage Range**: 2 Vpp (Volts peak-to-peak)
- **Power Supply**: 1.8 V and 3.3 V
- **Power Consumption**: Typically 1.4 W at 250 MSPS
- **Interface**: Parallel CMOS or DDR LVDS (Low Voltage Differential Signaling)
- **Package**: 64-pin VQFN (Very Thin Quad Flat No-Lead)
- **Operating Temperature Range**: -40°C to +85°C
- **Features**: Includes a programmable gain amplifier (PGA), digital down-converter (DDC), and various power-down modes for power savings.

This ADC is designed for applications requiring high-speed and high-resolution data conversion, such as in communications, medical imaging, and test and measurement systems.

Application Scenarios & Design Considerations

Dual Channel 11 Bit, 200 MSPS ADC with SNRBoost 64-VQFN -40 to 85# ADS62C17IRGCR Technical Documentation

 Manufacturer : TEXAS INSTRUMENTS  
 Component : 16-Bit, 250-MSPS Analog-to-Digital Converter (ADC)

## 1. Application Scenarios

### Typical Use Cases
The ADS62C17IRGCR is primarily deployed in high-performance signal acquisition systems requiring exceptional dynamic performance and resolution. Key use cases include:

-  Direct RF Sampling : Capable of digitizing signals up to 700 MHz input bandwidth, making it suitable for direct intermediate frequency (IF) sampling in software-defined radio architectures
-  Multi-channel Systems : Integrated digital processing blocks enable synchronization across multiple ADCs in phased-array radar and MIMO communications
-  High-Speed Data Acquisition : Precision measurement applications requiring 16-bit resolution at 250 MSPS sampling rates

### Industry Applications

 Communications Infrastructure 
- 4G/5G base station receivers
- Microwave backhaul systems
- Satellite communication ground stations
- The device's high SFDR (85 dBc typical) and SNR (75 dBFS typical) enable clean signal reception in crowded spectral environments

 Defense and Aerospace 
- Radar signal processing (phased array, synthetic aperture)
- Electronic warfare systems
- Avionics test equipment
- Military-grade temperature range (-40°C to +85°C) ensures reliability in harsh environments

 Test and Measurement 
- High-end oscilloscopes
- Spectrum analyzers
- Automated test equipment (ATE)
- Integrated digital downconverters (DDC) simplify baseband processing

### Practical Advantages and Limitations

 Advantages: 
- Excellent dynamic performance maintained across full input bandwidth
- Low power consumption (1.15 W typical) for 16-bit resolution
- Flexible clocking options with integrated PLL
- Small package (VQFN-64) saves board space
- Programmable gain and offset adjustment

 Limitations: 
- Requires careful analog front-end design to achieve specified performance
- Power supply sequencing must be strictly followed
- Limited to 250 MSPS maximum sampling rate
- Higher cost compared to lower-resolution alternatives

## 2. Design Considerations

### Common Design Pitfalls and Solutions

 Power Supply Management 
- *Pitfall*: Inadequate decoupling leading to performance degradation
- *Solution*: Implement recommended decoupling network with multiple capacitor values (0.1 µF, 1 µF, 10 µF) close to supply pins

 Clock Integrity 
- *Pitfall*: Jitter from clock source exceeding specifications
- *Solution*: Use low-jitter clock sources (<100 fs RMS) and maintain 50Ω controlled impedance clock traces

 Analog Input Configuration 
- *Pitfall*: Improper termination causing signal reflections
- *Solution*: Implement transformer-coupled or amplifier-driven input with proper impedance matching

### Compatibility Issues

 Digital Interface 
- Compatible with LVDS receivers in FPGAs and ASICs
- May require level translation when interfacing with 1.8V CMOS devices
- Ensure timing constraints are met for high-speed data transfer

 Power Sequencing 
- Must follow specified sequence: AVDD → DRVDD → IOVDD
- Violation can cause latch-up or permanent damage

 Reference Circuits 
- Internal reference sufficient for most applications
- External reference required for multi-device synchronization systems

### PCB Layout Recommendations

 Power Distribution 
- Use separate power planes for analog (AVDD), digital (DRVDD), and interface (IOVDD) supplies
- Implement star-point grounding at ADC ground pins
- Place decoupling capacitors within 2 mm of supply pins

 Signal Routing 
- Route analog inputs as differential pairs with controlled impedance
- Maintain symmetry in input trace lengths (<50 mil mismatch)
- Keep digital outputs away from analog inputs and clock signals
- Use ground

Alternative Part Number

  • LTC2208CUP --: 16-bit 130Msps high-speed ADC with similar resolution and speed class, suitable as a functional alternative in many digitizer designs.
  • AD9268BCPZ-125 --: 16-bit 125Msps dual ADC offering comparable bandwidth and dynamic performance for high-speed signal acquisition.
  • ADC16DV160CILQ --: 16-bit 160Msps dual-channel ADC from the same vendor family, providing similar high-speed conversion capability with a different series name.
  • MAX19588ETL+ --: 16-bit high-speed ADC with similar sampling capability, usable as an alternative when TI part is unavailable, though pinout and interface differ.

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