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General Description

The MAX19506 dual-channel, analog-to-digital converter

(ADC) provides 8-bit resolution and a maximum sample

rate of 100Msps.

The MAX19506 analog input accepts a wide 0.4V to

1.4V input common-mode voltage range, allowing DC-

coupled inputs for a wide range of RF, IF, and base-

band front-end components. The MAX19506 provides

excellent dynamic performance from baseband to high

input frequencies beyond 400MHz, making the device

ideal for zero-intermediate frequency (ZIF) and high-

intermediate frequency (IF) sampling applications. The

typical signal-to-noise ratio (SNR) performance is

49.8dBFS and typical spurious-free dynamic range

(SFDR) is 69dBc at f

= 70MHz and f

CLK

= 100MHz.

The MAX19506 operates from a 1.8V supply.

Additionally, an integrated, self-sensing voltage regula-

tor allows operation from a 2.5V to 3.3V supply (AVDD).

The digital output drivers operate on an independent

supply voltage (OVDD) over the 1.8V to 3.5V range.

The analog power consumption is only 57mW per chan-

nel at V

AVDD

= 1.8V. In addition to low operating

power, the MAX19506 consumes only 1mW in power-

down mode and 17mW in standby mode.

Various adjustments and feature selections are avail-

able through programmable registers that are

accessed through the 3-wire serial-port interface.

Alternatively, the serial-port interface can be disabled,

with the three pins available to select output mode,

data format, and clock-divider mode. Data outputs are

available through a dual parallel CMOS-compatible out-

put data bus that can also be configured as a single

multiplexed parallel CMOS bus.

The MAX19506 is available in a small 7mm x 7mm, 48-

pin thin QFN package and is specified over the -40°C

to +85°C extended temperature range.

Refer to the MAX19515, MAX19516, and MAX19517

data sheets for pin- and feature-compatible 10-bit,

65Msps, 100Msps, and 130Msps versions, respectively.

Refer to the MAX19505 and MAX19507 data sheets for

pin- and feature-compatible 8-bit, 65Msps and 130Msps

versions, respectively.

Applications

IF and Baseband Communications, Including

Cellular Base Stations and Point-to-Point

Microwave Receivers

Ultrasound and Medical Imaging

Portable Instrumentation and Low-Power Data

Acquisition

Digital Set-Top Boxes

Features

o Very-Low-Power Operation (57mW/Channel at

100Msps)

o 1.8V or 2.5V to 3.3V Analog Supply

o Excellent Dynamic Performance

49.8dBFS SNR at 70MHz

69dBc SFDR at 70MHz

o User-Programmable Adjustments and Feature

Selection through an SPI™ Interface

o Selectable Data Bus (Dual CMOS or Single

Multiplexed CMOS)

o DCLK Output and Programmable Data Output

Timing Simplifies High-Speed Digital Interface

o Very Wide Input Common-Mode Voltage Range

(0.4V to 1.4V)

o Very High Analog Input Bandwidth (> 850MHz)

o Single-Ended or Differential Analog Inputs

o Single-Ended or Differential Clock Input

o Divide-by-One (DIV1), Divide-by-Two (DIV2), and

Divide-by-Four (DIV4) Clock Modes

o Two’s Complement, Gray Code, and Offset Binary

Output Data Format

o Out-of-Range Indicator (DOR)

o CMOS Output Internal Termination Options

(Programmable)

o Reversible Bit Order (Programmable)

o Data Output Test Patterns

o Small 7mm x 7mm, 48-Pin Thin QFN Package with

Exposed Pad

MAX19506

Dual-Channel, 8-Bit, 100Msps ADC

________________________________________________________________

Maxim Integrated Products

Ordering Information

19-4312; Rev 0; 10/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

EVALUATION KIT

AVAILABLE

PART TEMP RANGE PIN-PACKAGE

MAX19506ETM+

-40°C to +85°C 48 TQFN-EP*

Denotes a lead-free/RoHS-compliant package.

EP = Exposed pad.

Pin Configuration appears at end of data sheet.

SPI is a trademark of Motorola, Inc.

1 2 3 4 5 6 ... 33 34

MAX19506 1

Resumo do Conteúdo

Página 1 - MAX19506

General DescriptionThe MAX19506 dual-channel, analog-to-digital converter(ADC) provides 8-bit resolution and a maximum samplerate of 100Msps.The MAX19

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10 ______________________________________________________________________________________Typical Operating Characteristics (continued)(VAVDD= VOVDD= 1

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Typical Operating Characteristics (continued)(VAVDD= VOVDD= 1.8V, internal reference, differential clock, VCLK= 1.5VP-P, fCLK= 100MHz, AIN= -0.5dBFS,

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC12 ______________________________________________________________________________________Pin DescriptionPIN NA

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 13Detailed DescriptionT

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC14 ______________________________________________________________________________________T/HINA+CMAREFIOCMBINA

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 15Reference Input/Outpu

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC16 ______________________________________________________________________________________Serial Programming In

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 17BIT NO. VALUE DESCRIP

Página 10

MAX19506Dual-Channel, 8-Bit, 100Msps ADC18 ______________________________________________________________________________________HPS_SHDN0 STBY_SHDN0

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 19Digital Output Power

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RATI

Página 13

MAX19506Dual-Channel, 8-Bit, 100Msps ADC20 ______________________________________________________________________________________Data/DCLK Timing (03h

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 21CHA Data Output Termi

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC22 ______________________________________________________________________________________Clock Divide/Data For

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 23Common Mode (08h)Soft

Página 17

Clock InputsThe input clock interface provides for flexibility in therequirements of the clock driver. The MAX19506accepts a fully differential clock

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 25Format/Test Pattern r

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC26 ______________________________________________________________________________________SYNCSYNC2x INPUT CLK4

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 27SYNCSYNC2x INPUT CLK4

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC28 ______________________________________________________________________________________Digital OutputsThe MA

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 29Figure 15. Recommende

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC_______________________________________________________________________________________ 3PARAMETER SYMBOL COND

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC30 ______________________________________________________________________________________Integrated Voltage Re

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 31Applications Informat

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC32 ______________________________________________________________________________________The circuit of Figure

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC______________________________________________________________________________________ 33Small-Signal Noise Fl

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MAX19506Dual-Channel, 8-Bit, 100Msps ADCMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC4 _______________________________________________________________________________________ELECTRICAL CHARACTERI

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC_______________________________________________________________________________________ 5ELECTRICAL CHARACTERI

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC6 _______________________________________________________________________________________ELECTRICAL CHARACTERI

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MAX19506Dual-Channel, 8-Bit, 100Msps ADC_______________________________________________________________________________________ 7ELECTRICAL CHARACTERI

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MAX19506 toc06FREQUENCY (MHz)AMPLITUDE (dBFS)40302010-80-70-60-50-40-30-20-100-100-900 50fIN1 = 172.50290MHzfIN2 = 177.49523MHz175MHz TWO-TONE FFT PLO

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ANALOG SUPPLY CURRENT vs. SUPPLY VOLTAGESUPPLY VOLTAGE (V)ANALOG SUPPLY CURRENT (mA)MAX19506 toc181.65 1.70 1.75 1.80 1.85 1.90 1.955557596163656769MA

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