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MAX19191

更新时间： 2024-11-30 11:18:15
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
20页 1331K
描述
Ultra-Low-Power, 10Msps, 8-Bit ADC

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MAX19191 数据手册

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19-5099; Rev 0; 1/10  
Ultra-Low-Power, 10Msps, 8-Bit ADC  
MAX91  
General Description  
Features  
The MAX19191 is an ultra-low-power, 8-bit, 10Msps  
analog-to-digital converter (ADC). The device features  
a fully differential wideband track-and-hold (T/H) input.  
This input has a 440MHz bandwidth and accepts fully  
differential or single-ended signals. The MAX19191  
delivers a typical signal-to-noise and distortion (SINAD)  
of 48.6dB at an input frequency of 1.875MHz and a  
sampling rate of 10Msps while consuming only  
15.3mW. This ADC operates from a 2.7V to 3.6V analog  
power supply. A separate 1.8V to 3.6V supply powers  
the digital output driver. In addition to ultra-low operat-  
ing power, the MAX19191 features three power-down  
modes to conserve power during idle periods. Excellent  
dynamic performance, ultra-low power, and small size  
make the MAX19191 ideal for applications in imaging,  
instrumentation, and digital communications.  
o Ultra-Low Power  
15.3mW (Normal Operation: 10Msps)  
2µW (Shutdown Mode)  
o Excellent Dynamic Performance  
48.6dB SNR at f = 1.875MHz  
IN  
70dBc SFDR at f = 1.875MHz  
IN  
o 2.7V to 3.6V Single Analog Supply  
o 1.8V to 3.6V TTL/CMOS-Compatible Digital  
Outputs  
o Fully Differential or Single-Ended Analog Inputs  
o Internal/External Reference Option  
o Multiplexed CMOS-Compatible Three-State Outputs  
o 28-Pin Thin QFN Package  
o Evaluation Kit Available (Order MAX19191EVKIT+)  
An internal 1.024V precision bandgap reference sets the  
full-scale range of the ADC to 0.512V. A flexible refer-  
ence structure allows the MAX19191 to use its internal  
reference or accept an externally applied reference for  
applications requiring increased accuracy.  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX19191ETI+  
MAX19191ETI/V+**  
-40°C to +85°C 28 Thin QFN-EP*  
-40°C to +85°C 28 Thin QFN-EP*  
The MAX19191 features parallel, CMOS-compatible  
three-state outputs. The digital output format is offset  
binary. A separate digital power input accepts a voltage  
from 1.8V to 3.6V for flexible interfacing to different logic  
levels. The MAX19191 is available in a 5mm × 5mm, 28-  
pin thin QFN package, and is specified for the extended  
industrial (-40°C to +85°C) temperature range.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
/V denotes an automotive qualified part.  
**Future product—contact factory for availability.  
Pin Configuration  
For higher sampling frequency applications, refer to the  
MAX1195–MAX1198 dual 8-bit ADCs. For a dual-channel,  
pin-compatible version, refer to the MAX19192 data  
sheet.  
TOP VIEW  
Applications  
Ultrasound and Medical Imaging  
Battery-Powered Portable Instruments  
Low-Power Video  
IN-  
IN+  
D0  
1
2
3
4
5
6
7
21  
20  
19  
18  
17  
16  
+
D1  
GND  
CLK  
GND  
GND  
GND  
D2  
WLAN, Mobile DSL, WLL Receiver  
Digital Audio Receiver Front-End  
D3  
MAX19191  
DVAL  
D4  
EXPOSED PAD  
15 D5  
5mm x 5mm THIN QFN  
________________________________________________________________ Maxim Integrated Products  
1
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.  
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