16-Bit, 5 MSPS PULSAR Differential ADC

The AD7961 is a 16-bit, 5 MSPS charge redistribution successive approximation (SAR), analog-to-digital converter (ADC). The SAR architecture allows unmatched performance both in noise and in linearity. The AD7961 contains a low power, high speed, 16-bit sampling ADC, an internal conversion clock and an internal reference buffer. On the CNV edge, the AD7961 samples the voltage difference between the IN+ and IN− pins. The voltages on these pins swing in opposite phase between 0 V and 4.096 V/5 V. The reference voltage is applied to the part externally. All conversion results are available on a single LVDS self-clocked or echo-clocked serial interface.

The AD7961 is available in a 32-lead LFCSP (QFN) with operation specified from −40°C to +85°C.

APPLICATIONS

* Digital imaging systems

Digital X-rays

Computed tomography

IR cameras

* MRI gradient control

* High speed data acquisition

* Spectroscopy

* Test equipment

* Throughput: 5 MSPS

* 16-bit resolution with no missing codes

* SNR: 95.5 dB

* INL: ±0.2 LSB

* DNL: ±0.14 LSB

* Internal reference buffer