Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

ADC12DJ2700 Datasheet(PDF) 38 Page - Texas Instruments

Click here to check the latest version.
Part No. ADC12DJ2700
Description  5.4-GSPS Single-Channel or 2.7-GSPS Dual-Channel, 12-Bit, RF-Sampling Analog-to-Digital Converter (ADC)
Download  146 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADC12DJ2700 Datasheet(HTML) 38 Page - Texas Instruments

Back Button ADC12DJ2700 Datasheet HTML 34Page - Texas Instruments ADC12DJ2700 Datasheet HTML 35Page - Texas Instruments ADC12DJ2700 Datasheet HTML 36Page - Texas Instruments ADC12DJ2700 Datasheet HTML 37Page - Texas Instruments ADC12DJ2700 Datasheet HTML 38Page - Texas Instruments ADC12DJ2700 Datasheet HTML 39Page - Texas Instruments ADC12DJ2700 Datasheet HTML 40Page - Texas Instruments ADC12DJ2700 Datasheet HTML 41Page - Texas Instruments ADC12DJ2700 Datasheet HTML 42Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 38 / 146 page
background image
ADC
50
50
INA+, INB+
INA-, INB-
AGND
Analog input
protection
diodes.
Input Buffer
Copyright © 2017, Texas Instruments Incorporated
38
ADC12DJ2700
SLVSEH9 – JANUARY 2018
www.ti.com
Product Folder Links: ADC12DJ2700
Submit Documentation Feedback
Copyright © 2018, Texas Instruments Incorporated
coupled input signals must have a common-mode voltage that meets the device input common-mode
requirements specified as VCMI in the Recommended Operating Conditions table. The 0-V input common-mode
voltage simplifies the interface to split-supply, fully-differential amplifiers and to a variety of transformers and
baluns. The ADC12DJ2700 includes internal analog input protection to protect the ADC inputs during overranged
input conditions; see the Analog Input Protection section. Figure 64 provides a simplified analog input model.
Figure 64. ADC12DJ2700 Analog Input Internal Termination and Protection Diagram
There is minimal degradation in analog input bandwidth when using single-channel mode versus dual-channel
mode. In single-channel mode, INA± is strongly recommended to be used as the input to the ADC because ADC
performance is optimized for INA±. However, either analog input (INA+ and INA– or INB+ and INB–) can be
used. Using INB± results in degraded performance unless custom trim routines are used to optimize performance
for INB± in each device. The desired input can be chosen using SINGLE_INPUT in the input mux control
register.
NOTE
INA± is strongly recommended to be used as the input to the ADC in single-channel mode
for optimized performance.
7.3.2.1 Analog Input Protection
The analog inputs are protected against overdrive conditions by internal clamping diodes that are capable of
sourcing or sinking input currents during overrange conditions, see the voltage and current limits in the Absolute
Maximum Ratings table. The overrange protection is also defined for a peak RF input power in the Absolute
Maximum Ratings table, which is frequency independent. Operation above the maximum conditions listed in the
Recommended Operating Conditions table results in an increase in failure-in-time (FIT) rate, so the system must
correct the overdrive condition as quickly as possible. Figure 64 shows the analog input protection diodes.
7.3.2.2 Full-Scale Voltage (VFS) Adjustment
Input full-scale voltage (VFS) adjustment is available, in fine increments, for each analog input through the
FS_RANGE_A register setting (see the INA full-scale range adjust register) and FS_RANGE_B register setting
(see the INB full-scale range adjust register) for INA± and INB±, respectively. The available adjustment range is
specified in the Electrical Characteristics: DC Specifications table. Larger full-scale voltages improve SNR and
noise floor (in dBFS/Hz) performance, but can degrade harmonic distortion. The full-scale voltage adjustment is
useful for matching the full-scale range of multiple ADCs when developing a multi-converter system or for
external interleaving of multiple ADC12DJ2700s to achieve higher sampling rates.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99  100   ...More


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn