Rainbow-electronics MAX19516 Manual do Utilizador descarregar pdf (Página 1)

General Description

The MAX19516 dual-channel, analog-to-digital convert-

er (ADC) provides 10-bit resolution and a maximum

sample rate of 100Msps.

The MAX19516 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 MAX19516 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

60dBFS and typical spurious-free dynamic range

(SFDR) is 82dBc at f

= 70MHz and f

CLK

= 100MHz.

The MAX19516 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 MAX19516 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 MAX19516 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 MAX19505, MAX19506, and MAX19507

data sheets for pin- and feature-compatible 8-bit,

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

Refer to the MAX19515 and MAX19517 data sheets for

pin- and feature-compatible 10-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

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

100Msps)

♦ 1.8V or 2.5V to 3.3V Analog Supply

♦ Excellent Dynamic Performance

60dBFS SNR at 70MHz

82dBc SFDR at 70MHz

♦ User-Programmable Adjustments and Feature

Selection through an SPI™ Interface

♦ Selectable Data Bus (Dual CMOS or Single

Multiplexed CMOS)

♦ DCLK Output and Programmable Data Output

Timing Simplifies High-Speed Digital Interface

♦ Very Wide Input Common-Mode Voltage Range

(0.4V to 1.4V)

♦ Very High Analog Input Bandwidth (> 850MHz)

♦ Single-Ended or Differential Analog Inputs

♦ Single-Ended or Differential Clock Input

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

Divide-by-Four (DIV4) Clock Modes

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

Output Data Format

♦ Out-of-Range Indicator (DOR)

♦ CMOS Output Internal Termination Options

(Programmable)

♦ Reversible Bit Order (Programmable)

♦ Data Output Test Patterns

♦ Small 7mm x 7mm 48-Pin Thin QFN Package with

Exposed Pad

MAX19516

Dual-Channel, 10-Bit, 100Msps ADC

________________________________________________________________

Maxim Integrated Products

Ordering Information

19-4226; Rev 0; 7/08

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.

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.

PART TEMP RANGE PIN-PACKAGE

MAX19516ETM+

-40°C to +85°C 48 TQFN-EP*

1 2 3 4 5 6 ... 33 34

MAX19516 1

Resumo do Conteúdo

Página 1 - MAX19516

General DescriptionThe MAX19516 dual-channel, analog-to-digital convert-er (ADC) provides 10-bit resolution and a maximumsample rate of 100Msps.The MA

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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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MAX19516Dual-Channel, 10-Bit, 100Msps ADC12 ______________________________________________________________________________________Pin DescriptionPIN N

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 13Detailed Description

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC14 ______________________________________________________________________________________T/HINA+CMAREFIOCMBIN

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 15Reference Input/Outp

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC16 ______________________________________________________________________________________Serial Programming I

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 17BIT NO. VALUE DESCRI

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC18 ______________________________________________________________________________________HPS_SHDN0STBY_SHDN0

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 19Digital Output Power

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RAT

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC20 ______________________________________________________________________________________Data/DCLK Timing (03

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 21CHA Data Output Term

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC22 ______________________________________________________________________________________Clock Divide/Data Fo

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 23Common Mode (08h)Sof

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Clock InputsThe input clock interface provides for flexibility in therequirements of the clock driver. The MAX19516accepts a fully differential clock

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 25Format/Test Pattern

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC26 ______________________________________________________________________________________SYNCINSYNCIN2x INPUT

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 27SYNCINSYNCIN2x INPUT

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC28 ______________________________________________________________________________________Digital OutputsThe M

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 29Figure 15. Recommend

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC_______________________________________________________________________________________ 3PARAMETERSYMBOLCONDI

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC30 ______________________________________________________________________________________Integrated Voltage R

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 31Applications Informa

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC32 ______________________________________________________________________________________The circuit of Figur

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC______________________________________________________________________________________ 33Small-Signal Noise F

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MAX19516Dual-Channel, 10-Bit, 100Msps ADCMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC4 _______________________________________________________________________________________ELECTRICAL CHARACTER

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC_______________________________________________________________________________________ 5ELECTRICAL CHARACTER

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC6 _______________________________________________________________________________________ELECTRICAL CHARACTER

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MAX19516Dual-Channel, 10-Bit, 100Msps ADC_______________________________________________________________________________________ 7ELECTRICAL CHARACTER

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175MHz TWO-TONE IMD PLOTFREQUENCY (MHz)AMPLITUDE (dBFS)MAX19516 toc06-120-100-80-60-40-2000 5 10 15 25 3020 40 45 5035fIN1 = 177.29835MHzfIN2 = 172.40

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ANALOG SUPPLY CURRENT vs. SUPPLY VOLTAGESUPPLY VOLTAGE (V)ANALOG SUPPLY CURRENT (mA)MAX19516 toc181.65 1.70 1.75 1.80 1.85 1.90 1.955557596163656769PE

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