ADC1215S - Single 12-bit ADC for up to 125 Msps

The ADC1215S is a single channel 12-bit Analog-to-Digital Converter (ADC) optimized for high dynamic performances and low power consumption at sample rates up to 125 Msps. Pipelined architecture and output error correction ensure the ADC1215S is accurate enough to guarantee zero missing codes over the entire operating range. Supplied from a single 3 V source, it can handle output logic levels from 1.8 V to 3.3 V in CMOS mode, thanks to a separate digital output supply.

The ADC1215S supports the Low Voltage Differential Signalling (LVDS) Double Data Rate (DDR) output standard. An integrated Serial Peripheral Interface (SPI) allows the user to easily configure the ADC.

The device also includes a SPI programmable full-scale to allow flexible input voltage range from 1 V to 2 V (peak-to-peak). With excellent dynamic performance from the baseband to input frequencies of 170 MHz or more, the ADC1215S is ideal for use in communications, imaging and medical applications - especially in high Intermediate Frequency (IF) applications thanks to the integrated input buffer. The input buffer ensures that the input impedance remains constant and low and the performance consistent over a wide frequency range.

Key Features

SNR, 70 dBFS / SFDR, 86 dBc
Sample rate up to 125 Msps
12-bit pipelined ADC core
Clock input divider by 2 for less jitter contribution
Integrated input buffer
Flexible input voltage range: 1 V (p-p) to 2 V (p-p)
CMOS or LVDS DDR digital outputs
Pin compatible with the ADC1415S series, the ADC1015S series and the ADC1115S125
HVQFN40 package
Input bandwidth 600 MHz
Power dissipation 635 mW at 80 Msps, including analog input buffer
SPI
Duty cycle stabilizer
Fast OuT of Range (OTR) detection
INL ±1.25 LSB, DNL ±0.25 LSB
Offset binary, two’s complement, gray code
Power-down and Sleep modes