Rainbow-electronics MAX12553 Bedienungsanleitung PDF herunterladen

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

= 3MHz/175MHz

90.6dBc/80.7dBc SFDR at f

= 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)

MAX12553

14-Bit, 65Msps, 3.3V ADC

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3343; Rev 0; 8/04

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

PKG

CODE

MAX12553ETL

-40°C to

+85°C

40 Thin QFN

(6mm x 6mm x 0.8mm)

T4066-3

Pin-Compatible Versions

PART

SAMPLING

RATE (Msps)

RESOLUTION

(BITS)

TARGET

APPLICATION

MAX12553 65 14 IF/Baseband

MAX1209 80 12 IF

MAX1211 65 12 IF

MAX1208 80 12 Baseband

MAX1207 65 12 Baseband

MAX1206 40 12 Baseband

Pin Configuration appears at end of data sheet.

1 2 3 4 5 6 ... 27 28

MAX12553 1
14-Bit, 65Msps, 3.3V ADC 1

Inhaltsverzeichnis

Seite 1 - 14-Bit, 65Msps, 3.3V ADC

General DescriptionThe MAX12553 is a 3.3V, 14-bit, 65Msps analog-to-digitalconverter (ADC) featuring a fully differential widebandtrack-and-hold (T/H)

Seite 2

MAX1255314-Bit, 65Msps, 3.3V ADC10 ______________________________________________________________________________________SNR, SINAD vs. TEMPERATUREMAX

Seite 3

MAX1255314-Bit, 65Msps, 3.3V ADC______________________________________________________________________________________ 11REFERENCE OUTPUT VOLTAGELOAD

Seite 4

MAX1255314-Bit, 65Msps, 3.3V ADC12 ______________________________________________________________________________________PIN NAME FUNCTION1 REFPPositi

Seite 5

MAX1255314-Bit, 65Msps, 3.3V ADC______________________________________________________________________________________ 13PIN NAME FUNCTION28 D4 CMOS D

Seite 6

MAX12553Detailed DescriptionThe MAX12553 uses a 10-stage, fully differential,pipelined architecture (Figure 1) that allows for high-speed conversion w

Seite 7

REFOUT sources up to 1.0mA and sinks up to 0.1mAfor external circuits with a load regulation of 35mV/mA.Short-circuit protection limits IREFOUTto a 2.

Seite 8

MAX12553All three modes of reference operation require thesame bypass capacitor combinations. Bypass COMwith a 2.2µF capacitor to GND. Bypass REFP and

Seite 9

System-Timing RequirementsFigure 6 shows the relationship between the clock, ana-log inputs, DAV indicator, DOR indicator, and the result-ing output d

Seite 10

MAX12553Data Out-of-Range Indicator (DOR)The DOR digital output indicates when the analog inputvoltage is out of range. When DOR is high, the analogin

Seite 11

MAX1255314-Bit, 65Msps, 3.3V ADC______________________________________________________________________________________ 19GRAY CODEOUTPUT CODE(G/T = 1)

Seite 12

MAX1255314-Bit, 65Msps, 3.3V ADC2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECT

Seite 13

MAX1255314-Bit, 65Msps, 3.3V ADC20 ______________________________________________________________________________________low, the MAX12553 is in norma

Seite 14

MAX1255314-Bit, 65Msps, 3.3V ADC______________________________________________________________________________________ 21BINARY-TO-GRAY CODE CONVERSIO

Seite 15

MAX1255314-Bit, 65Msps, 3.3V ADC22 ______________________________________________________________________________________the common-mode rejection, al

Seite 16

MAX1255314-Bit, 65Msps, 3.3V ADC______________________________________________________________________________________ 23Buffered External Reference D

Seite 17

MAX1255314-Bit, 65Msps, 3.3V ADC24 ______________________________________________________________________________________Unbuffered External Reference

Seite 18

MAX1255314-Bit, 65Msps, 3.3V ADC______________________________________________________________________________________ 25respectively. The feedback ar

Seite 19

MAX1255314-Bit, 65Msps, 3.3V ADC26 ______________________________________________________________________________________fundamental, the first six ha

Seite 20

MAX1255314-Bit, 65Msps, 3.3V ADC______________________________________________________________________________________ 27actual sampling instant. Aper

Seite 21

MAX1255314-Bit, 65Msps, 3.3V ADCMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product.

Seite 22

MAX1255314-Bit, 65Msps, 3.3V ADC_______________________________________________________________________________________ 3ELECTRICAL CHARACTERISTICS (c

Seite 23

MAX1255314-Bit, 65Msps, 3.3V ADC4 _______________________________________________________________________________________ELECTRICAL CHARACTERISTICS (c

Seite 24

MAX1255314-Bit, 65Msps, 3.3V ADC_______________________________________________________________________________________ 5ELECTRICAL CHARACTERISTICS (c

Seite 25

MAX1255314-Bit, 65Msps, 3.3V ADC6 _______________________________________________________________________________________Note 1: Specifications ≥+25°C

Seite 26

MAX1255314-Bit, 65Msps, 3.3V ADC_______________________________________________________________________________________ 7SINGLE-TONE FFT PLOT(8192-POI

Seite 27

MAX1255314-Bit, 65Msps, 3.3V ADC8 _______________________________________________________________________________________SNR, SINADvs. SAMPLING RATEMA

Seite 28

MAX1255314-Bit, 65Msps, 3.3V ADC_______________________________________________________________________________________ 9SNR, SINADvs. ANALOG INPUT AM

Kommentare zu diesen Handbüchern

Keine Kommentare

Rainbow-electronics MAX12553 Bedienungsanleitung

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Sensoren Rainbow-electronics MAX12553 herunter. Rainbow Electronics MAX12553 User Manual Benutzerhandbuch

Inhaltsverzeichnis

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sensoren Rainbow-electronics MAX12553