Rainbow Electronics MAX1207 - Manual

General Description
The MAX1207 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
MAX1207 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 316mW,
while delivering a typical signal-to-noise ratio (SNR) per-
formance of 68.5dB at a 32.5MHz input frequency. The
T/H-driven input stage accepts single-ended or differen-
tial inputs. In addition to low operating power, the
MAX1207 features a 0.15mW power-down mode to con-
serve power during idle periods.
A flexible reference structure allows the MAX1207 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 MAX1207 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 MAX1207 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 MAX1207 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/Lower Speed Versions table) for applications
that require high dynamic performance for IF input fre-
quencies.
Applications
Communication Receivers
Cellular, LMDS, Point-to-Point Microwave,
MMDS, HFC, WLAN
Ultrasound and Medical Imaging
Portable Instrumentation
Low-Power Data Acquisition
Features
♦ Excellent Dynamic Performance
68.5dB SNR at f IN = 32.5MHz
88.7dBc SFDR at f IN = 32.5MHz
♦ 3.3V Low-Power Operation
316mW (Single-Ended Clock Mode)
342mW (Differential Clock Mode)
♦ Differential or Single-Ended Clock
♦ Accepts 20% to 80% Clock Duty Cycle
♦ Fully Differential or Single-Ended Analog Input
♦ Adjustable Full-Scale Analog Input Range
♦ Common-Mode Reference
♦ Power-Down Mode
♦ CMOS-Compatible Outputs in Two’s Complement
or Gray Code
♦ Data-Valid Indicator Simplifies Digital Design
♦ Out-of-Range and Data-Valid Indicators
♦ Miniature, 40-Pin Thin QFN Package with Exposed
Paddle
♦ Pin-Compatible, IF Sampling ADC Available
(MAX1211ETL)
♦ Evaluation Kit Available (Order MAX1211EVKIT)
MAX1207
65Msps, 12-Bit ADC
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-3260; Rev 0; 5/04
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.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE PIN-PACKAGE
MAX1207ETL -40°C to +85°C 40 Thin QFN (6mm x 6mm)
Pin-Compatible Higher/Lower
Speed Versions
PART
SPEED GRADE
(Msps)
TARGET
APPLICATION
MAX1206 40 Baseband
MAX1207 65 Baseband
MAX1208 80 Baseband
MAX1211 65 IF
MAX1209 80 IF
Pin Configuration appears at end of data sheet.