Rainbow-electronics MAX1182 Manual do Utilizador descarregar pdf (Página 1)

General Description

The MAX1182 is a +3V, dual 10-bit analog-to-digital

converter (ADC) featuring fully-differential wideband

track-and-hold (T/H) inputs, driving two pipelined, 9-

stage ADCs. The MAX1182 is optimized for low-power,

high-dynamic performance applications in imaging,

instrumentation and digital communication applications.

This ADC operates from a single +2.7V to +3.6V sup-

ply, consuming only 195mW while delivering a typical

signal-to-noise ratio (SNR) of 59dB at an input frequen-

cy of 20MHz and a sampling rate of 65Msps. The T/H

driven input stages incorporate 400MHz (-3dB) input

amplifiers. The converters may also be operated with

single-ended inputs. In addition to low operating power,

the MAX1182 features a 2.8mA sleep mode as well as a

1µA power-down mode to conserve power during idle

periods.

An internal +2.048V precision bandgap reference sets

the full-scale range of the ADC. A flexible reference

structure allows the use of the internal or an externally

derived reference, if desired for applications requiring

increased accuracy or a different input voltage range.

The MAX1182 features parallel, CMOS-compatible

three-state outputs. The digital output format is set to

two’s complement or straight offset binary through a

single control pin. The device provides for a separate

output power supply of +1.7V to +3.6V for flexible inter-

facing. The MAX1182 is available in a 7mm x 7mm, 48-

pin TQFP package, and is specified for the extended

industrial (-40°C to +85°C) temperature range.

Pin-compatible higher and lower speed versions of the

MAX1182 are also available. Please refer to the

MAX1180 datasheet for 105Msps, the MAX1181

datasheet for 80Msps, the MAX1183 datasheet for

40Msps, and the MAX1184 datasheet for 20Msps. In

addition to these speed grades, this family includes a

20Msps multiplexed output version (MAX1185), for

which digital data is presented time-interleaved on a

single, parallel 10-bit output port.

Applications

High Resolution Imaging

I/Q Channel Digitization

Multchannel IF Undersampling

Instrumentation

Video Application

Features

♦ Single +3V Operation

♦ Excellent Dynamic Performance:

59dB SNR at f

= 20MHz

77dB SFDR at f

= 20MHz

♦ Low Power:

65mA (Normal Operation)

2.8mA (Sleep Mode)

1µA (Shutdown Mode)

♦ 0.02dB Gain and 0.25° Phase Matching (typ)

♦ Wide ±1V

P-P

Differential Analog Input Voltage

Range

♦ 400MHz -3dB Input Bandwidth

♦ On-Chip +2.048V Precision Bandgap Reference

♦ User-Selectable Output Format—Two’s

Complement or Offset Binary

♦ 48-Pin TQFP Package with Exposed Pad for

Improved Thermal Dissipation

♦ Evaluation Kit Available

MAX1182

Dual 10-Bit, 65Msps, +3V, Low-Power ADC with

Internal Reference and Parallel Outputs

________________________________________________________________ Maxim Integrated Products 1

D1A

D0A

OGND

D0B

D1B

D2B

D3B

D4B

D5B

COM

GND

INA+

INA-

GND

INB-

INB+

GND

CLK

48 TQFP-EP

MAX1182

GND

T/B

SLEEP

D9B

D8B

D7B

D6B

REFN

REFP

REFIN

REFOUT

D9A

D8A

D7A

D6A

D5A

D4A

D3A

D2A

Pin Configuration

19-2094; Rev 0; 7/01

Ordering Information

PART TEMP. RANGE PIN-PACKAGE

MAX1182ECM -40°C to +85°C 48 TQFP-EP

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.

1 2 3 4 5 6 ... 20 21

Resumo do Conteúdo

Página 1 - Ordering Information

General DescriptionThe MAX1182 is a +3V, dual 10-bit analog-to-digitalconverter (ADC) featuring fully-differential widebandtrack-and-hold (T/H) inputs

Página 2 - ELECTRICAL CHARACTERISTICS

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs10 _________________________________________________________

Página 3

Detailed DescriptionThe MAX1182 uses a 9-stage, fully-differentialpipelined architecture (Figure 1) that allows for high-speed conversion while minimi

Página 4

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs12 _________________________________________________________

Página 5 - ±0.2 mV/V

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 6 - MAX1182 toc07

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs14 _________________________________________________________

Página 7

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 8

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs16 _________________________________________________________

Página 9 - Pin Description

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 10 - Pin Description (continued)

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs18 _________________________________________________________

Página 11 - Detailed Description

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 12

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs2 __________________________________________________________

Página 13

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel OutputsGNDREFERENCEOUTPUTDRIVERSCONTROLT/HT/HPIPELINEADCDECOUTPUTDR

Página 14 - Applications Information

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel OutputsPackage Information48L,TQFP.EPSMaxim cannot assume responsib

Página 15 - Grounding, Bypassing, and

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 16

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs4 __________________________________________________________

Página 17 - Dynamic Parameter Definitions

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 18 - Signal-to-Noise Ratio (SNR)

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs6 __________________________________________________________

Página 19 - Chip Information

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 20 - Functional Diagram

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs8 __________________________________________________________

Página 21 - Package Information

MAX1182Dual 10-Bit, 65Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

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Rainbow-electronics MAX1182 Manual do Utilizador Página 1

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