MAX1206 Datasheet, PDF (1/29 Pages) Maxim Integrated Products – 40Msps, 12-Bit ADC

19-3259; Rev 0; 5/04
EVAALVUAAILTAIOBNLEKIT
40Msps, 12-Bit ADC
General Description
The MAX1206 is a 3.3V, 12-bit analog-to-digital converter
(ADC) featuring a fully differential wideband track-and-
hold (T/H) input, driving the internal quantizer. The
MAX1206 is optimized for low power, small size, and
high dynamic performance. This ADC operates from a
single 3.0V to 3.6V supply, consuming only 159mW,
while delivering a typical signal-to-noise ratio (SNR) per-
formance of 68.6dB at a 20MHz input frequency. The
T/H-driven input stage accepts single-ended or differen-
tial inputs. In addition to low operating power, the
MAX1206 features a 0.15mW power-down mode to con-
serve power during idle periods.
A flexible reference structure allows the MAX1206 to
use its internal precision bandgap reference or accept
an externally applied reference. A common-mode refer-
ence is provided to simplify design and reduce external
component count in differential analog input circuits.
The MAX1206 supports both a single-ended and differ-
ential input clock drive. Wide variations in the clock
duty cycle are compensated with the ADC’s internal
duty-cycle equalizer.
The MAX1206 features parallel, CMOS-compatible out-
puts. The digital output format is pin selectable to be
either two’s complement or Gray code. A data-valid indi-
cator eliminates external components that are normally
required for reliable digital interfacing. A separate power
input for the digital outputs accepts a voltage from 1.7V
to 3.6V for flexible interfacing with various logic levels.
The MAX1206 is available in a 6mm x 6mm x 0.8mm, 40-
pin thin QFN package with exposed paddle (EP), and is
specified for the extended industrial (-40°C to +85°C)
temperature range.
Refer to the MAX1209 and MAX1211 (see Pin-Compatible
Higher/Speed Versions table) for applications that require
high dynamic performance for IF input frequencies.
Applications
Communication Receivers
Cellular, LMDS, Point-to-Point Microwave,
MMDS, HFC, WLAN
Ultrasound and Medical Imaging
Portable Instrumentation
Low-Power Data Acquisition
Features
o Excellent Dynamic Performance
68.6dB SNR at f_IN = 20MHz
90dBc SFDR at f_IN = 20MHz
o Low-Power Operation
159mW at 3.0V (Single-Ended Clock)
181mW at 3.3V (Single-Ended Clock)
198mW at 3.3V (Differential Clock)
o Differential or Single-Ended Clock
o Accepts 20% to 80% Clock Duty Cycle
o Fully Differential or Single-Ended Analog Input
o Adjustable Full-Scale Analog Input Range
o Common-Mode Reference
o Power-Down Mode
o CMOS-Compatible Outputs in Two’s Complement
or Gray Code
o Data-Valid Indicator Simplifies Digital Design
o Out-of-Range and Data-Valid Indicators
o Miniature, 40-Pin Thin QFN Package with Exposed
Paddle
o Pin-Compatible, IF Sampling ADC Available
(MAX1211ETL)
o Evaluation Kit Available (Order MAX1211EVKIT)
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX1206ETL -40°C to +85°C 40 Thin QFN (6mm x 6mm)
PART
MAX1206
MAX1207
MAX1208
MAX1211
MAX1209
Pin-Compatible Higher
Speed Versions
SPEED GRADE
(Msps)
40
65
80
65
80
TARGET
APPLICATION
Baseband
Baseband
Baseband
IF
IF
Pin Configuration appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.