Rainbow Electronics ADC10080 - Manual

ADC10080
10-Bit, 80 MSPS, 3V, 78.6 mW A/D Converter
General Description
The ADC10080 is a monolithic CMOS analog-to-digital con-
verter capable of converting analog input signals into 10-bit
digital words at 80 Megasamples per second (MSPS). This
converter uses a differential, pipeline architecture with digital
error correction and an on-chip sample-and-hold circuit to
provide a complete conversion solution, and to minimize
power consumption, while providing excellent dynamic per-
formance. A unique sample-and-hold stage yields a full-
power bandwidth of 400 MHz. Operating on a single 3.0V
power supply, this device consumes just 78.6 mW at
80 MSPS, including the reference current. The Standby
feature reduces power consumption to just 15 mW.
The differential inputs provide a full scale selectable input
swing of 2.0 V
P-P
, 1.5 V
P-P
, 1.0 V
P-P
, with the possibility of a
single-ended input. Full use of the differential input is recom-
mended for optimum performance. An internal +1.2V preci-
sion bandgap reference is used to set the ADC full-scale
range, and also allows the user to supply a buffered refer-
enced voltage for those applications requiring increased ac-
curacy. The output data format is 10-bit offset binary, or two’s
complement.
This device is available in the 28-lead TSSOP package and
will operate over the industrial temperature range of −40˚C to
+85˚C.
Features
n Single +3.0V operation
n Selectable 2.0 V
P-P
, 1.5 V
P-P
, or 1.0 V
P-P
full-scale input
swing
n 400 MHz −3 dB input bandwidth
n Low power consumption
n Standby mode
n On-chip reference and sample-and-hold amplifier
n Offset binary or two’s complement data format
n Separate adjustable output driver supply to
accommodate 2.5V and 3.3V logic families
n 28-pin TSSOP package
Key Specifications
n Resolution 10 Bits
n Conversion Rate 80 MSPS
n Full Power Bandwidth 400 MHz
n DNL ± 0.25 LSB (typ)
n SNR (f
IN
= 10 MHz) 59.5 dB (typ)
n SFDR (f
IN
= 10 MHz) −78.7 dB (typ)
n Data Latency 6 Clock Cycles
n Supply Voltage +3.0V
n Power Consumption, 80 MHz 78.6 mW
Applications
n Ultrasound and Imaging
n Instrumentation
n Cellular Based Stations/Communications Receivers
n Sonar/Radar
n xDSL
n Wireless Local Loops
n Data Acquisition Systems
n DSP Front Ends
Connection Diagram
20048501
November 2004
ADC10080
10-Bit
80
MSPS
3V
,
78.6
mW
A/D
Converter
© 2004 National Semiconductor Corporation DS200485 www.national.com