ADC14L020

Features:

·Single +3.3V supply operation
·Internal sample-and-hold
·Internal reference
·Outputs 2.4V to 3.6V compatible
·Duty Cycle Stabilizer
·Power down mode




Application

·Medical Imaging
·Instrumentation
·Communications
·Digital Video




Pinout






Specifications

Resolution	14 bits
Channels	1 Channels
SNR	74 dB
SFDR	93 dB
ENOB	12 bits
Max Sample Rate	20 MSPS
Min Sample Rate	5 MSPS
Power Dissipation	0.15 Watt
PowerWise Rating 1	1.83 pJ/conv
INL (+/-)	1.4 LSB
SINAD	74 dB
DNL (+/-)	0.5 LSB
THD dB	-90 dB
Min Supply Voltage	3 Volt
Max Supply Voltage	3.6 Volt
Nominal Vin	2 Vpp
Temperature Min	-40 deg C
Temperature Max	85 deg C
Data Converter Type	ADC
PowerWise	Yes
View Using Catalog

V_A, V_D, V_DR 4.2V
|V_AV_D| 100 mV
Voltage on Any Input or Output Pin -0.3V to (V_A or V_D
+0.3V)
Input Current at Any Pin (Note 3) ±25 mA
Package Input Current (Note 3) ±50 mA
Package Dissipation at T_A = 25 See (Note 4)
ESD Susceptibility
Human Body Model (Note 5) 2500V
Machine Model (Note 5)250V
Storage Temperature -65 to +150




Description

The ADC14L020 is a low power monolithic CMOS analogto- digital converter capable of converting analog input signals into 14-bit digital words at 20 Megasamples per second (MSPS). This converter uses a differential, pipeline architecture with digital error correction and an on-chip sample-andhold circuit to minimize power consumption while providing excellent dynamic performance and a 150 MHz Full Power Bandwidth. Operating on a single +3.3V power supply, the ADC14L020 achieves 12.0 effective bits at nyquist and consumes just 150 mW at 20 MSPS . The Power Down feature reduces power consumption to 15 mW.

The differential inputs of ADC14L020 provide a full scale differential input swing equal to 2 times VREF with the possibility of a singleended input. Full use of the differential input is recommended for optimum performance. Duty cycle stabilization and output data format are selectable using a quad state function pin. The output data can be set for offset binary or two's complement.

To ease interfacing to lower voltage systems, the digital output driver power pins of the ADC14L020 can be connected to a separate supply voltage in the range of 2.4V to the analog supply voltage.

This device ADC14L020 is available in the 32-lead LQFP package and will operate over the industrial temperature range of -40 to +85. An evaluation board is available to ease the evaluation process.