max555ccbtd Maxim Integrated Products, Inc., max555ccbtd Datasheet

max555ccbtd

Manufacturer Part Number

max555ccbtd

Description

Max555 300msps, 12-bit Dac With Complementary Voltage Outputs

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX555CCBTD.pdf (12 pages)

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The MAX555 is an advanced, monolithic, 12-bit digital-

to-analog converter (DAC) with complementary 50Ω

outputs. Fabricated using an oxide-isolated bipolar

process, the MAX555 is designed for signal-reconstruc-

tion applications at an output update rate of 300Msps.

It incorporates an analog multiplying function with

10MHz useable input bandwidth. The voltage-output

DAC uses precision laser trimming to achieve 12-bit

accuracy with ±1/2LSB integral and differential linearity

(±0.012% FS). Absolute gain error is a low 1% of full

scale. Full-scale transitions occur in less than 0.5ns.

Internal registers and a unique decoder reduce glitch-

ing and allow the MAX555 to achieve precise RF perfor-

mance with over 73dBc of spurious-free dynamic range

at 50Msps with f

with f

The MAX555 operates from a single -5.2V supply and

dissipates 980mW (nominal). It comes in a 64-pin TQFP

package with exposed paddle for enhanced thermal

dissipation.

________________________Applications

19-0297; Rev 3; 6/02

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.

___________________________________________________Simplified Block Diagram

OUT

Direct Digital Synthesis

Arbitrary Waveform Generation

HDTV/High-Resolution Graphics

Instrumentation

Communications Local Oscillators

Automated Tester Applications

= 18.6MHz.

12-BIT

LINES

ECL

OUT

________________________________________________________________ Maxim Integrated Products

= 3.1MHz, or 62dBc at 300Msps

General Description

CLK

BYPASS

CLK

DECODED

Complementary Voltage Outputs

LINES

BIT

MAX555

300Msps, 12-Bit DAC with

o 12-Bit Resolution

o ±1/2LSB Integral and Differential Nonlinearity

o Capable of 300Msps (min) Update Rate

o Complementary 50Ω Outputs

o Multiplying Reference Input

o Low Glitch Energy (5.6pVs)

o Single -5.2V Power Supply

o On-Chip Data Registers

o ECL-Compatible Inputs with Differential Clock

____________________________Features

*EP = Exposed pad.

Pin Configuration appears at end of data sheet.

MAX555CCB

PART

-20mA

TEMP RANGE

0°C to +70°C

50Ω

Ordering Information

50Ω

800Ω

PIN-PACKAGE

64 TQFP-EP*

ROFFSET

REF

VOUT

LGND

VOUT

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max555ccbtd Summary of contents

Page 1

Rev 3; 6/02 General Description The MAX555 is an advanced, monolithic, 12-bit digital- to-analog converter (DAC) with complementary 50Ω outputs. Fabricated using an oxide-isolated bipolar process, the MAX555 is designed for signal-reconstruc- tion applications at an output update rate ...

Page 2

DAC with Complementary Voltage Outputs ABSOLUTE MAXIMUM RATINGS Analog Supply Voltage (AV ) .................................-7V to +0.3V EE Digital Supply Voltage (DV ) ..................................-7V to +0.3V EE Digital Input Voltage (D0–D11) ...................................-5. Reference Input Voltage (V ) ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) ( -5.2V 1.000V REF PARAMETER SYMBOL DIGITAL INPUTS Input Current, Logic High Input Current, Logic Low Logic "1" Voltage V Logic "0" Voltage DIGITAL TIMING Data Update Rate Data-to-Clock ...

Page 4

DAC with Complementary Voltage Outputs __________________________________________Typical Operating Characteristics ( -5.2V 0.75V REF A SPURIOUS-FREE DYNAMIC RANGE vs 50MHz) OUT CLK ...

Page 5

PIN NAME 1, 14, 16–19, 27, 28, 29, 31–38, 48, AGND 49 54, 60 DGND D10 D11 9, 10, 11, 13, 39, N.C. 46 LBIAS ...

Page 6

DAC with Complementary Voltage Outputs DIGITAL SECTION LSB (D0) MASTER REGISTER 12 INPUTS 4 MSB (D11) DECODER CLK 2 CLK BYPASS REF/2 400Ω 400Ω REF (1V FS) 800Ω ROFFSET Figure 1. Functional Diagram weighted currents), which are applied ...

Page 7

Table 1. Output Coding VOUT DIGITAL CODE (D11–D0) (V) 000000000000 -0.999756 000000000001 -0.999512 011111111111 -0.500000 100000000000 -0.499756 111111111111 0 The DAC’s control amplifier has a typical open-loop volt- age gain of 85dB, and its gain-magnitude bandwidth is flat up to ...

Page 8

DAC with Complementary Voltage Outputs possible latchup. Appropriate decoupling is needed to prevent digital-section current spikes from affecting the analog section (Figure 4 recommended that a multilayer PC board be used, containing a solid ground and ...

Page 9

OUTPUT SPECTRUM (f = 5MHz 50MHz) OUT CLK -1 -11 -21 -31 -41 -51 -61 -71 -81 2.3MHz/div OUTPUT SPECTRUM (f = 9.3MHz 150MHz) OUT CLK -1 -11 -21 -31 -41 -51 -61 -71 -81 7MHz/div ...

Page 10

DAC with Complementary Voltage Outputs V REF 1.000V 0.1µF I REF 1.25mA 50Ω LINES 21, 22 REF REF/2 8 D11 (MSB) -2V 5 D10 - - - - -2V 61 ...

Page 11

Configuration TOP VIEW AGND 1 DGND D10 5 DGND D11 8 N.C. 9 N.C. 10 N.C. 11 LBIAS 12 N.C. 13 AGND 14 ALTCOMPC 15 AGND 16 *Exposed pad on ...

Page 12

DAC with Complementary Voltage Outputs (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any circuitry other ...

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