February 1, 2008
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 pow-
er consumption, while providing excellent dynamic perfor-
mance. 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, in-
cluding 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 in1.2V 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 user choice of 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
■
3.0V operation
■
Selectable full-scale input swing
■
400 MHz −3 dB input bandwidth
■
Low power consumption
■
Standby mode
■
On-chip reference and sample-and-hold amplifier
■
Offset binary or two’s complement data format
■
Separate adjustable output driver supply
Key Specifications
■
Resolution
10 Bits
■
Conversion Rate
80 MSPS
■
Full Power Bandwidth
400 MHz
■
DNL
±0.25 LSB (typ)
■
SNR (f
IN
= 10 MHz)
59.5 dB (typ)
■
SFDR (f
IN
= 10 MHz)
−78.7 dB (typ)
■
Power Consumption, 80 Msps
78.6 mW
Applications
■
Ultrasound and Imaging
■
Instrumentation
■
Cellular Base Stations/Communications Receivers
■
Sonar/Radar
■
xDSL
■
Wireless Local Loops
■
Data Acquisition Systems
■
DSP Front Ends
Connection Diagram
20048501
© 2008 National Semiconductor Corporation
200485
www.national.com
ADC10080 10-Bit 80 MSPS 3V, 78.6 mW A/D Converter
