MAX19506ETM+;MAX19506ETM+T;中文规格书,Datasheet资料

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 IN = 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 MAX19517data 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

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

*EP = Exposed pad.

Pin Configuration appears at end of data sheet.SPI is a trademark of Motorola, Inc.

M A X 19506

Dual-Channel, 8-Bit, 100Msps ADC 2_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(V AVDD = V OVDD = 1.8V, internal reference, differential clock, V CLK = 1.5V P-P , f CLK = 100MHz, A IN = -0.5dBFS, data output termina-

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

OVDD, AVDD to GND............................................-0.3V to +3.6V CMA, CMB, REFIO, INA+, INA-, INB+,

INB- to GND ......................................................-0.3V to +2.1V CLK+, CLK-, SYNC, SPEN , CS , SCLK, SDIN

to GND..........-0.3V to the lower of (V AVDD + 0.3V) and +3.6V DCLKA, DCLKB, D7A–D0A, D7B–D0B, DORA, DORB

to GND..........-0.3V to the lower of (V OVDD + 0.3V) and +3.6V Continuous Power Dissipation (T A = +70°C)

48-Pin Thin QFN, 7mm x 7mm x 0.8mm (derate 40mW/°C above +70°C).............................................................3200mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°C Soldering Temperature (reflow).......................................+260°C

MAX19506

Dual-Channel, 8-Bit, 100Msps ADC

_______________________________________________________________________________________3

ELECTRICAL CHARACTERISTICS (continued)

(V AVDD = V OVDD = 1.8V, internal reference, differential clock, V CLK = 1.5V P-P , f CLK = 100MHz, A IN = -0.5dBFS, data output termina-

M A X 19506

Dual-Channel, 8-Bit, 100Msps ADC 4_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V AVDD = V OVDD = 1.8V, internal reference, differential clock, V CLK = 1.5V P-P , f CLK = 100MHz, A IN = -0.5dBFS, data output termina-tion = 50?, T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)

MAX19506

Dual-Channel, 8-Bit, 100Msps ADC

_______________________________________________________________________________________5

ELECTRICAL CHARACTERISTICS (continued)

(V AVDD = V OVDD = 1.8V, internal reference, differential clock, V CLK = 1.5V P-P , f CLK = 100MHz, A IN = -0.5dBFS, data output termina-

M A X 19506

Dual-Channel, 8-Bit, 100Msps ADC 6_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V AVDD = V OVDD = 1.8V, internal reference, differential clock, V CLK = 1.5V P-P , f CLK = 100MHz, A IN = -0.5dBFS, data output termina-

MAX19506

Dual-Channel, 8-Bit, 100Msps ADC

_______________________________________________________________________________________7

ELECTRICAL CHARACTERISTICS (continued)

(V AVDD = V OVDD = 1.8V, internal reference, differential clock, V CLK = 1.5V P-P , f CLK = 100MHz, A IN = -0.5dBFS, data output termina-

FREQUENCY (MHz)

A M P L I T U D E (d

B F S )

40302010-80-70-60-50-40-30-20-100

-100

-90050

175MHz TWO-TONE FFT PLOT

FREQUENCY (MHz)A M P L I T U D E (d B F S )

40302010-80-70-60-50-40-30-20-100-90-100

050

70MHz TWO-TONE FFT PLOT

FREQUENCY (MHz)A M P L I T U D E (d B F S )

-80-70-60-50-40-30-20-100-90

50175MHz INPUT FFT PLOT

FREQUENCY (MHz)

A M P L I T U D E (d

B F S )

37.525.012.5-80-70-60-50-40-30-20-100

-90

050.0

70MHz INPUT FFT PLOT

FREQUENCY (MHz)

A M P L I T U D E (d

B F S )

40302010-80-70-60-50-40-30-20-100-90

0503MHz SINGLE-ENDED INPUT FFT PLOT

M A X 19506

Dual-Channel, 8-Bit, 100Msps ADC 8

_______________________________________________________________________________________

Typical Operating Characteristics

(V AVDD = V OVDD = 1.8V, internal reference, differential clock, V CLK = 1.5V P-P , f CLK = 100MHz, A IN = -0.5dBFS, data output termina-tion = 50?, T A = +25°C, unless otherwise noted.)

3MHz INPUT FFT PLOT

FREQUENCY (MHz)A M P L I T U D E (d B F S )

-80-70-60-50-40-30-20-100-90

DIGITAL OUTPUT CODE I N L (L S B )

192

128

-0.06-0.08-0.04-0.0200.020.040.060.080.10-0.10

256INTEGRAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

DIGITAL OUTPUT CODE

D N L (L S B )

19212864-0.06-0.08-0.04-0.0200.020.040.060.080.10-0.10

256

DIFFERENTIAL NONLINEARITY vs. DIGITAL OUTPUT CODE

INPUT FREQUENCY (MHz)

P E R F O R M A N C E (d B F S )

300

200

100

55606570758085

450

400

PERFORMANCE vs. INPUT FREQUENCY

ANALOG SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

A N A L O G S U P P L Y C U R R E N T (m A )

M A X 19506 t o c 18

1.65 1.70

1.75 1.80 1.85 1.90 1.95

57596163656769

ANALOG INPUT AMPLITUDE (dBFS)

P E R F O R M A N C E (d B F S )

-10

-20

-50

-40

-30

5560657075808545-60

PERFORMANCE

vs. ANALOG INPUT AMPLITUDE

INPUT FREQUENCY (MHz)

P E R F O R M A N C E (d B F S )

505560657075808545

SINGLE-ENDED PERFORMANCE

vs. INPUT FREQUENCY

Typical Operating Characteristics (continued)

(V AVDD = V OVDD = 1.8V, internal reference, differential clock, V CLK = 1.5V P-P , f CLK = 100MHz, A IN = -0.5dBFS, data output termina-tion = 50?, T A = +25°C, unless otherwise noted.)

MAX19506

Dual-Channel, 8-Bit, 100Msps ADC

_______________________________________________________________________________________

SAMPLING FREQUENCY (Msps)

P E R F O R M A N C E (d B F S )

100

55606570758085

110

PERFORMANCE

vs. SAMPLING FREQUENCY

COMMON-MODE VOLTAGE (V)P E R F O R M A N C E (d B F S )

1.15

0.95

0.55

0.75

5055606570758085450.35

1.35

PERFORMANCE

vs. COMMON-MODE VOLTAGE

ANALOG SUPPLY VOLTAGE (V)P E R F O R M A N C E (d B F S )

1.851.801.75505560657075808545

1.65 1.90 1.951.70PERFORMANCE

vs. ANALOG SUPPLY VOLTAGE

ANALOG SUPPLY VOLTAGE (V)

P E R F O R M A N C E (d B F S )

3.12.92.75055606570758085

2.3

3.3 3.5

2.5PERFORMANCE

vs. ANALOG SUPPLY VOLTAGE

ANALOG SUPPLY CURRENT vs. SAMPLING FREQUENCY

SAMPLING FREQUENCY (MHz)

A N A L O G S U P P L Y C U R R E N T (m A )

M A X 19506 t o c 16

6065707580859095100105110

525456586062646668ANALOG SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

A N A L O G S U P P L Y C U R R E N T (m A )

M A X 19506 t o c 17

-40-20

020********

57596163656769

10______________________________________________________________________________________

Typical Operating Characteristics (continued)

(V AVDD = V OVDD = 1.8V, internal reference, differential clock, V CLK = 1.5V P-P , f CLK = 100MHz, A IN = -0.5dBFS, data output termina-tion = 50?, T A = +25°C, unless otherwise noted.)

ANALOG SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

A N A L O G S U P P L Y C U R R E N T (m A )M A X 19506 t o c 19

2.3

2.5

2.7 2.9

3.1 3.3

3.56

4.0

64.565.065.566.066.567.067.5M A X 1

9506

Dual-Channel, 8-Bit, 100Msps ADC DIGITAL SUPPLY CURRENT vs. SAMPLING FREQUENCY

SAMPLING FREQUENCY (Msps)

D I G I T A L S U P P L Y C U R R

E N T (m A )

708090

1001100

26481014121618DIGITAL SUPPLY CURRENT vs. SAMPLING FREQUENCY

SAMPLING FREQUENCY (Msps)

D I G I T A L S U P P L Y C U R R

E N T (m A )

708090100110

15102030253540

DIGITAL SUPPLY CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

D I G I T A L S U P P L Y C U R R

E N T (m A )

-40

-20

02060

4080

1020

DIGITAL SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

D I G I T A L S U P P L Y C U R R

E N T (m A )

1.8

2.0

2.2 2.4

3.22.8

3.02.6 3.4

5152010253035DIGITAL SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

D I G I T A L S U P P L Y C U R R

E N T (m A )

1.7 1.9

2.1 2.3

3.12.7 2.92.5 3.3

3.5

51510203025CLOCK DUTY CYCLE (%)

P E R F O R M A N C E (d B F S )

50556065

707580854530

PERFORMANCE vs. CLOCK DUTY CYCLE

TEMPERATURE (°C)

P E R F O R M A N C E (d B F S )

505560

7075808545

-40

-20

PERFORMANCE vs. TEMPERATURE

GAIN ERROR vs. TEMPERATURE

TEMPERATURE (°C)

G A I N E R R O R (%)M A X 19506 t o c 27

-40

40200-20

-0.05

-0.010.010.020.030-0.03

-0.04-0.020.040.05

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MAXIM

MAX19506ETM+MAX19506ETM+T