MAX12553 Datasheet, PDF (1/28 Pages) Maxim Integrated Products – 14-Bit, 65Msps, 3.3V ADC

19-3343; Rev 0; 8/04
EVAALVUAAILTAIOBNLEKIT
14-Bit, 65Msps, 3.3V ADC
General Description
The MAX12553 is a 3.3V, 14-bit, 65Msps analog-to-digital
converter (ADC) featuring a fully differential wideband
track-and-hold (T/H) input amplifier, driving a low-noise
internal quantizer. The analog input stage accepts single-
ended or differential signals. The MAX12553 is optimized
for low-power, small size, and high dynamic perfor-
mance. Excellent dynamic performance is maintained
from baseband to input frequencies of 175MHz and
beyond, making the MAX12553 ideal for intermediate-
frequency (IF) sampling applications.
Powered from a single 3.15V to 3.60V supply, the
MAX12553 consumes only 363mW while delivering a
typical signal-to-noise (SNR) performance of 71dB at
an input frequency of 175MHz. In addition to low oper-
ating power, the MAX12553 features a 150µW power-
down mode to conserve power during idle periods.
A flexible reference structure allows the MAX12553 to use
the internal 2.048V bandgap reference or accept an
externally applied reference. The reference structure
allows the full-scale analog input range to be adjusted
from ±0.35V to ±1.10V. The MAX12553 provides a com-
mon-mode reference to simplify design and reduce exter-
nal component count in differential analog input circuits.
The MAX12553 supports both a single-ended and dif-
ferential input clock drive. Wide variations in the clock
duty cycle are compensated with the ADC’s internal
duty-cycle equalizer (DCE).
ADC conversion results are available through a 14-bit,
parallel, CMOS-compatible output bus. The digital out-
put format is pin selectable to be either two’s comple-
ment or Gray code. A data-valid indicator eliminates
external components that are normally required for reli-
able digital interfacing. A separate digital power input
accepts a wide 1.7V to 3.6V supply, allowing the
MAX12553 to interface with various logic levels.
The MAX12553 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.
See the Pin-Compatible Versions table for a complete
family of 14-bit and 12-bit high-speed ADCs.
Applications
IF and Baseband Communication Receivers
Cellular, Point-to-Point Microwave, HFC, WLAN
Ultrasound and Medical Imaging
Portable Instrumentation
Low-Power Data Acquisition
Features
♦ Direct IF Sampling Up to 400MHz
♦ Excellent Dynamic Performance
74.0dB/71dB SNR at f_IN = 3MHz/175MHz
90.6dBc/80.7dBc SFDR at f_IN = 3MHz/175MHz
♦ Low Noise Floor: -76dBFS
♦ 3.3V Low-Power Operation
337mW (Single-Ended Clock Mode)
363mW (Differential Clock Mode)
150µW (Power-Down Mode)
♦ Fully Differential or Single-Ended Analog Input
♦ Adjustable Full-Scale Analog Input Range: ±0.35V
to ±1.10V
♦ Common-Mode Reference
♦ CMOS-Compatible Outputs in Two’s Complement
or Gray Code
♦ Data-Valid Indicator Simplifies Digital Interface
♦ Data Out-of-Range Indicator
♦ Miniature, 40-Pin Thin QFN Package with Exposed
Paddle
♦ Evaluation Kit Available (Order MAX12555EVKIT)
Ordering Information
PART
MAX12553ETL
TEMP _PIN-PACKAGE
RANGE
PKG
CODE
-40°C to
+85°C
40 Thin QFN
(6mm x 6mm x 0.8mm)
T4066-3
Pin-Compatible Versions
PART
MAX12553
MAX1209
MAX1211
MAX1208
MAX1207
MAX1206
SAMPLING
RATE (Msps)
65
80
65
80
65
40
RESOLUTION
(BITS)
14
12
12
12
12
12
TARGET
APPLICATION
IF/Baseband
IF
IF
Baseband
Baseband
Baseband
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.