ADC14V155

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Supply Voltage (V_A, V_D)............ −0.3V to 4.2V
Supply Voltage (V_DR) .............−0.3V to 2.35V
|V_AV_D| ......................... 100 mV
Voltage on Any Input Pin
(Not to exceed 4.2V)...........−0.3V to (V_A +0.3V)
Voltage on Any Output Pin
(Not to exceed 2.35V)..........-0.3V to (V_DR +0.2V)
Input Current at Any Pin other
than Supply Pins (Note 3)..................5 mA
Package Input Current (Note 3) ............±50 mA
Max Junction Temp (T_J) ..................+150
Thermal Resistance (_JA) ................24°/W
Package Dissipation at T_A = 25 (Note 4)........5.2W
ESD Rating
Human Body Model (Note 5) ................2000 V
Machine Model (Note 5)....................200 V
Charge Device Model .................... 1000 V
Storage Temperature ..............−65°C to +150

Soldering process must comply with National Semiconductor's Reflow Temperature Profile specifications. Refer to www.national.com/packaging.

The ADC14V155 is a high-performance CMOS analog-todigital converter with LVDS outputs. It is capable of converting analog input signals into 14-Bit digital words at rates up to 155 Mega Samples Per Second (MSPS). Data leaves the chip in a DDR (Dual Data rate) format; this allows both edges of the output clock to be utilized while achieving a smaller package size. This converter uses a differential, pipelined architecture with digital error correction and an on-chip sample-and-hold circuit to minimize power consumption and the external component count, while providing excellent dynamic performance. A unique sample-and-hold stage yields a full-power bandwidth of 1.1 GHz. The ADC14V155 operates from dual +3.3V and +1.8V power supplies and consumes 951 mW of power at 155 MSPS.

The separate +1.8V supply for the digital output interface allows lower power operation with reduced noise. A powerdown feature reduces the power consumption to 15 mW while still allowing fast wake-up time to full operation. In addition there is a sleep feature which consumes 50 mW of power and has a faster wake-up time.

The differential inputs provide a full scale differential input swing equal to 2 times the reference voltage. A stable 1.0V internal voltage reference is provided, or the ADC14V155 can be operated with an external reference.

Clock mode (differential versus single-ended) and output data format (offset binary versus 2's complement) are pin-selectable. A duty cycle stabilizer maintains performance over a wide range of input clock duty cycles.

The ADC14V155 is pin-compatible with the ADC12V170. It is available in a 48-lead LLP package and operates over the industrial temperature range of −40 to +85.