The 8-channel, 16-bit ADS52J65 analog-to-digital converter (ADC) uses CMOS process and innovative circuit techniques. It is designed to operate at low power and give very high signal-to-noise ratio (SNR) performance with a 2-Vpp full-scale input. The device gives 80-dBFS idle SNR and 78-dBFS full-scale SNR at 5 MHz. The large input bandwidth of 250 MHz makes the device suitable for a wide range of applications, such as high frequency medical ultrasound, magnetic resonance imaging, multi-channel data acquisition, flow cytometry, flow cytometer, and hematology analyzer. The ADC integrates an internal reference trimmed to match across devices. ADS52J65 has advanced digital features, including a digital I/Q demodulator with fractional decimation filter. The ADC data from each channel is encoded using an 8B to 10B format and is sent as a SerDes data stream using current-mode logic (CML) output buffers, as per the JESD204B standard. The ADC data from all eight channels can be output over a single CML buffer (1-lane SerDes) with the data rate limited to a maximum of 12.8 Gbps. Using SerDes outputs reduces the number of interface lines. This, together with the low-power design, enables eight channels to be packaged in a 9-mm × 9-mm VQFN allowing high system integration densities. ADS52J65 also supports modes where all ADC data is sent over four CML buffers (4-Lane SerDes), reducing the SerDes data rate per lane for low-cost FPGAs.The ADS52J65 is available in a non-magnetic VQFN package that does not create any magnetic artifact. The device is specified over –40°C to +85°C.
- 16-Bit Resolution, Idle SNR: 80 dBFS
- 70 mW/Ch at 125 MSPS, 4-CH per Lane
- 45 mW/Ch at 62.5 MSPS, 8-CH per Lane
- Full-Scale Input: 2 VPP
- Full-Scale SNR: 78 dBFS at fin = 10 MHz
- Full-Scale SFDR: –85 dBc at fin = 10 MHz
- Analog Input –3 dB Bandwidth = 250 MHz
- Maximum Input Signal Frequency for 2 VPP Input = 130 MHz
- Fast and Consistent Overload Recovery
- Advanced Digital Features
- Automatic DC Offset Correction
- Digital Average
- Digital I/Q Demodulator
- Fractional Decimation Filter M = 1 to 63 With Increments of 0.25
- Data Output Rate Reduction After Decimation
- 64 mW/Ch at 80 MSPS and Decimation = 2
- On-Chip RAM With 32 Preset Profiles
- JESD204B Subclass 0, 1, and 2
- 2, 4, or 8 Channels per JESD Lane
- 10-Gbps JESD Interface
- Supports lane rate up to 12.8 Gbps for short trace length (< 5 Inch)
- 64-Pin Non-Magnetic 9 × 9-mm Package
| Sample rate (max) (Msps) | 125 |
| Resolution (Bits) | 16 |
| Number of input channels | 8 |
| Interface type | JESD204B |
| Analog input BW (MHz) | 250 |
| Features | High Performance |
| Rating | Catalog |
| Peak-to-peak input voltage range (V) | 2 |
| Power consumption (typ) (mW) | 560 |
| Architecture | Pipeline |
| SNR (dB) | 78 |
| ENOB (Bits) | 13 |
| SFDR (dB) | 85 |
| Operating temperature range (°C) | -40 to 85 |
| Input buffer | No |