- Overview
- Features
- Diagrams
- Max Ratings
- Part Numbers
Overview
 The AD7625 is a 16-bit, 6 MSPS, charge redistribution successive approximation register (SAR) based architecture analog-to-digital converter (ADC). SAR architecture allows unmatched performance both in noise (93 dB SNR) and in linearity (1 LSB). The AD7625 contains a high speed, 16-bit sampling ADC, an internal conversion clock, and an internal buffered reference. On the CNV± rising edge, it samples the voltage difference between the IN+ and IN– pins. The voltages on these pins swing in opposite phase between 0V and REF. The 4.096V reference voltage, REF, can be generated internally or applied externally.
All converted results are available on a single LVDS self-clocked or echoed-clock serial interface, reducing external hardware connections. Datasheet
The AD7625 is housed in a 32-lead, 5 mm × 5 mm LFCSP with operation specified from –40°C to +85°C. |
Features
Features
- Throughput: 6 MSPS
- SNR: 93 dB
- INL: ±0.45 LSB typical, ±1 LSB maximum
- DNL: ±0.3 LSB typical, ±0.5 LSB maximum
- Power dissipation: 135 mW
- 32-lead LFCSP (5 mm × 5 mm)
- SAR architecture. No latency/no pipeline delay
- 16-bit resolution with no missing codes
- Please see data sheet for additional features
|
|
|
|
Absolute Maximum Ratings
| Analog Inputs/Outputs |
|
| IN+, IN– to GND1 |
–0.3V to REF + 0.3V or ±130mA |
| REF2 to GND |
–0.3V to +6V |
| VCM, CAP2 to GND |
–0.3V to +6V |
| CAP1, REFIN to GND |
–0.3V to +2.7V |
| Supply Voltage |
|
| VDD1 |
–0.3V to +6V |
| VDD2, VIO |
–0.3V to +3V |
| Digital Inputs to GND |
–0.3V to VIO + 0.3V |
| Digital Outputs to GND |
–0.3V to VIO + 0.3V |
| Input Current to Any Pin Except Supplies3 |
±10mA |
| Operating Temperature Range (Commercial) |
–40°C to +85°C |
| Storage Temperature Range |
–65°C to +150°C |
| Junction Temperature |
150°C |
| ESD |
1kV |
| Datasheet |
Note 1: See the Analog Inputs section.
Note 2: Keep CNV+/CNV– low for any external REF voltage > 4.3V applied to the REF pin.
Note 3: Transient currents of up to 100mA do not cause SCR latch-up. |
|
Part Numbers
ADI P/N |
Digi-Key P/N |
Number of Bits |
Package |
Sampling Rate
(Per Second) |
Datasheet |
AD7625BCPZ |
|
16 |
32-LFCSP |
6M |
|
|
