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MAX11043

更新时间： 2024-10-01 11:18:55
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
33页 843K
描述
4-Channel, 16-Bit, Simultaneous-Sampling ADCs with PGA, Filter, and 8-/12-Bit Dual-Stage DAC

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MAX11043 数据手册

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19-4250; Rev 2; 3/11  
4-Channel, 16-Bit, Simultaneous-Sampling ADCs  
with PGA, Filter, and 8-/12-Bit Dual-Stage DAC  
MAX1043  
General Description  
Features  
o 4 Single-Ended or Differential Channels of  
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.  
Simultaneous-Sampling, 16-Bit ADCs  
1ꢀ ꢁSB ꢂIꢁ, 1 ꢁSB DIꢁ, Io ꢃissing Codes  
o
o 93dB SFDR at 1ꢀꢀkHz ꢂnput  
o PGA with Gain of 1, 2, 4, 8, 16, 32, or 64 for  
Each Channel  
o EQ Function Automatically Boosts  
High-Frequency, ꢁow-Amplitude Signals  
o Seven-Stage ꢂnternal Programmable Biquad  
Filters per Channel  
o High Throughput, 4ꢀꢀksps per Channel for 4  
The ADC can digitize signals up to 200kHz. A 40MHz  
serial interface provides communication to and from the  
device. The SPI™ interface provides throughput 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.  
Channels  
o Dual-Stage DAC  
Two 8-Bit Coarse Reference DACs  
12-Bit Fine DAC  
o +2.5V ꢂnternal Reference or +2.ꢀV to +2.8V  
External Reference  
o Single +3.3V Operation  
o Shutdown and Power-Saving ꢃodes  
o 4ꢀ-Pin, 6mm x 6mm TQFI Package  
o -4ꢀ°C to +125°C Operating Temperature  
Ordering Information  
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.  
PART  
TEꢃP RAIGE  
-40°C to +125°C  
-40°C to +125°C  
PꢂI-PACKAGE  
40 TQFN-EP*  
40 TQFN-EP*  
MAX11043ATL+  
MAX11043ATL/V+**  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
/V denotes an automotive qualified part.  
*EP = Exposed pad.  
**Future product—contact factory for availability.  
Pin Configuration  
TOP VIEW  
Applications  
30 29 28 27 26 25 24 23 22 21  
20  
31  
32  
33  
OSCOUT  
AINDN  
AINDP  
AGND  
Automotive Radar Systems  
Data Acquisition Systems  
Industrial Controls  
19 OSCIN  
18 EOC  
17 I.C.  
REFBP 34  
16  
SCLK  
15 DIN  
14  
35  
36  
37  
38  
39  
40  
I.C.  
AINCN  
AINCP  
REFC  
Power-Grid Monitoring  
MAX11043  
DOUT  
13 CS  
12  
*EP  
+
CONVRUN  
11 DACSTEP  
REFB  
AINBP  
1
2
3
4
5
6
7
8
9
10  
SPI is a trademark of Motorola, Inc.  
TQFI  
*CONNECT EP TO AGND.  
________________________________________________________________ ꢃaxim ꢂntegrated Products  
1
For pricing, delivery, and ordering information, please contact ꢃaxim Direct at 1-888-629-4642,  
or visit ꢃaxim’s website at www.maxim-ic.com.  
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