Rainbow-electronics MAX11043 Manuel d'utilisateur télécharger pdf

General Description

The MAX11043 features 4 single-ended or differential

channels of simultaneous-sampling ADCs with 16-bit

resolution. The MAX11043 contains a versatile filter

block and programmable-gain amplifier (PGA) per

channel. The filter consists of seven cascaded 2nd-

order filter sections for each channel, allowing the con-

struction of a 14th-order filter. The filter coefficients are

user-programmable. Configure each 2nd-order filter as

lowpass (LP), highpass (HP), or bandpass (BP) with

optional rectification. Gain and phase mismatch of the

analog signal path is better than -50dB.

The ADC can sample up to 800ksps per channel. A

40MHz serial interface provides communication to and

from the device. The SPI™ interface provides through-

put of 1600ksps; 4 channels at 400ksps per channel or

2 channels at 800ksps per channel. A software-selec-

table scan mode allows reading the ADC results while

simultaneously updating the DAC. Other features of the

MAX11043 include an internal (+2.5V) or external

(+2.0V to +2.8V) reference, power-saving modes, and

a PGA with gains of 1 to 64. The PGA includes an

equalizer (EQ) function that automatically boosts low-

amplitude, high-frequency signals for applications such

as CW-chirp radar.

The MAX11043 includes two 8-bit coarse DACs that set

the high and low references for a second-stage 12-bit

fine DAC, typically used for VCO control. Use software

controls to write to the DAC or step the DAC up and

down under hardware control in programmable steps.

The device operates from a +3.0V to +3.6V supply. The

MAX11043 is available in a 40-pin, 6mm x 6mm TQFN

package and operates over the extended -40°C to

+125°C temperature range.

Applications

Automotive Radar Systems

Data Acquisition Systems

Industrial Controls

Power-Grid Monitoring

Features

♦ 4 Single-Ended or Differential Channels of

Simultaneous-Sampling, 16-Bit ADCs

♦ ±10 LSB INL, ±1 LSB DNL, No Missing Codes

♦ 90dB SFDR, -86dB THD, 76dB SINAD,

77dB SNR at 100kHz Input

♦ PGA with Gain of 1, 2, 4, 8, 16, 32, or 64 for

Each Channel

♦ EQ Function Automatically Boosts

High-Frequency, Low-Amplitude Signals

♦ Seven-Stage Internal Programmable Biquad

Filters per Channel

♦ High Throughput, 400ksps per Channel for 4

Channels or 800ksps per Channel for 2 Channels

♦ Dual-Stage DAC

Two 8-Bit Coarse Reference DACs

12-Bit Fine DAC

♦ +2.5V Internal Reference or +2.0V to +2.8V

External Reference

♦ Single +3.3V Operation

♦ Shutdown and Power-Saving Modes

♦ 40-Pin, 6mm x 6mm TQFN Package

♦ -40°C to +125°C Operating Temperature

MAX11043

4-Channel, 16-Bit, Simultaneous-Sampling ADCs

with PGA, Filter, and 8-/12-Bit Dual-Stage DAC

________________________________________________________________

Maxim Integrated Products

MAX11043

TQFN

TOP VIEW

REFA

AINAP

AVDD

AGND

DGND

AINBN

REFDACL

AOUT

AGND

REFDACH

REFDAC

REFD

DGND

DVDD

REFBP

4567

27282930 26 24 23 22

I.C.

AINCN

EOC

I.C.

SCLK

DIN

AINAN

AVDD

AINCP

DOUT

REFC

REFB

AINBP

CONVRUN

DACSTEP

*CONNECT EP TO AGND.

*EP

AGND

OSCIN

AINDP

OSCOUT

DVDD

DVREG

UP/DWN

SHDN

8910

AINDN

Pin Configuration

Ordering Information

19-4250; Rev 0; 8/08

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.

PART TEMP RANGE PIN-PACKAGE

MAX11043ATL+

-40°C to +125°C

40 TQFN-EP*

Denotes a lead-free/RoHS-compliant package.

EP = Exposed pad.

SPI is a trademark of Motorola, Inc.

1 2 3 4 5 6 ... 31 32

MAX11043 1

Résumé du contenu

Page 1 - MAX11043

General DescriptionThe MAX11043 features 4 single-ended or differentialchannels of simultaneous-sampling ADCs with 16-bitresolution. The MAX11043 cont

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MAX110434-Channel, 16-Bit, Simultaneous-Sampling ADCswith PGA, Filter, and 8-/12-Bit Dual-Stage DAC10 ________________________________________________

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