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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

= 32.5MHz

88.7dBc SFDR at f

= 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.

1 2 3 4 5 6 ... 28 29

65Msps, 12-Bit ADC 1

Resumo do Conteúdo

Página 1 - 65Msps, 12-Bit ADC

General DescriptionThe MAX1207 is a 3.3V, 12-bit analog-to-digital converter(ADC) featuring a fully differential wideband track-and-hold (T/H) input,

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MAX120765Msps, 12-Bit ADC10 ______________________________________________________________________________________Typical Operating Characteristics (c

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MAX120765Msps, 12-Bit ADC______________________________________________________________________________________ 11Typical Operating Characteristics (c

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MAX120765Msps, 12-Bit ADC12 ______________________________________________________________________________________Typical Operating Characteristics (c

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MAX120765Msps, 12-Bit ADC______________________________________________________________________________________ 13Typical Operating Characteristics (c

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MAX120765Msps, 12-Bit ADC14 ______________________________________________________________________________________Typical Operating Characteristics (c

Página 7

MAX120765Msps, 12-Bit ADC______________________________________________________________________________________ 15OFFSET ERRORvs. TEMPERATUREMAX1207 t

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MAX120765Msps, 12-Bit ADC16 ______________________________________________________________________________________Pin Description (continued)PIN NAME

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MAX120765Msps, 12-Bit ADC______________________________________________________________________________________ 17Detailed DescriptionThe MAX1207 uses

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MAX120765Msps, 12-Bit ADC18 ______________________________________________________________________________________Reference Output (REFOUT)An internal

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MAX120765Msps, 12-Bit ADC______________________________________________________________________________________ 19edge to have the lowest possible jit

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MAX120765Msps, 12-Bit ADC2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSStresses bey

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MAX120765Msps, 12-Bit ADC20 ______________________________________________________________________________________GRAY CODEOUTPUT CODE(G/TTTT = 1)TWO’

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MAX120765Msps, 12-Bit ADC______________________________________________________________________________________ 21DOR is high impedance when the MAX12

Página 15

MAX120765Msps, 12-Bit ADC22 ______________________________________________________________________________________BINARY-TO-GRAY CODE CONVERSION1) TH

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MAX120765Msps, 12-Bit ADC______________________________________________________________________________________ 23In power-down mode, all internal cir

Página 17

MAX120765Msps, 12-Bit ADC24 ______________________________________________________________________________________Unbuffered External Reference Drives

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MAX120765Msps, 12-Bit ADC______________________________________________________________________________________ 25Parameter DefinitionsIntegral Nonlin

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MAX120765Msps, 12-Bit ADC26 ______________________________________________________________________________________21.5kΩ1% 21.5kΩ1% 21.5kΩ1% 21.5kΩ

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MAX120765Msps, 12-Bit ADC______________________________________________________________________________________ 27Gain ErrorIdeally, the positive full

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MAX120765Msps, 12-Bit ADC28 ______________________________________________________________________________________Intermodulation Distortion (IMD)IMD

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MAX120765Msps, 12-Bit ADCMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No cir

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MAX120765Msps, 12-Bit ADC_______________________________________________________________________________________ 3ELECTRICAL CHARACTERISTICS (continue

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MAX120765Msps, 12-Bit ADC4 _______________________________________________________________________________________ELECTRICAL CHARACTERISTICS (continue

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MAX120765Msps, 12-Bit ADC_______________________________________________________________________________________ 5ELECTRICAL CHARACTERISTICS (continue

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MAX120765Msps, 12-Bit ADC6 _______________________________________________________________________________________ELECTRICAL CHARACTERISTICS (continue

Página 27

MAX120765Msps, 12-Bit ADC_______________________________________________________________________________________ 7Typical Operating Characteristics(VD

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MAX120765Msps, 12-Bit ADC8 _______________________________________________________________________________________SIGNAL-TO-NOISE RATIOvs. SAMPLING RA

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MAX120765Msps, 12-Bit ADC_______________________________________________________________________________________ 9Typical Operating Characteristics (c

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Rainbow-electronics MAX1207 Manual do Utilizador

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