Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

HI5905 Datasheet(PDF) 8 Page - Intersil Corporation

Part # HI5905
Description  14-Bit, 5MSPS A/D Converter
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

HI5905 Datasheet(HTML) 8 Page - Intersil Corporation

Back Button HI5905 Datasheet HTML 3Page - Intersil Corporation HI5905 Datasheet HTML 4Page - Intersil Corporation HI5905 Datasheet HTML 5Page - Intersil Corporation HI5905 Datasheet HTML 6Page - Intersil Corporation HI5905 Datasheet HTML 7Page - Intersil Corporation HI5905 Datasheet HTML 8Page - Intersil Corporation HI5905 Datasheet HTML 9Page - Intersil Corporation HI5905 Datasheet HTML 10Page - Intersil Corporation HI5905 Datasheet HTML 11Page - Intersil Corporation  
Zoom Inzoom in Zoom Outzoom out
 8 / 11 page
background image
8
twenty bit result to the digital error correction logic. The digital
error correction logic uses the supplementary bits to correct
any error that may exist before generating the final fourteen
bit digital data output of the converter.
Because of the pipeline nature of this converter, the digital
data representing an analog input sample is output to the
digital data bus on the 4th cycle of the clock after the analog
sample is taken. This time delay is specified as the data
latency. After the data latency time, the digital data
representing each succeeding analog sample is output
during the following clock cycle. The digital output data is
synchronized to the external sampling clock with a latch. The
digital output data is available in two’s complement binary
format (see Table 1, A/D Code Table).
Internal Reference Generator, VROUT and VRIN
The HI5905 has an internal reference generator, therefore,
no external reference voltage is required. VROUT must be
connected to VRIN when using the internal reference
voltage.
The HI5905 can be used with an external reference. The
converter requires only one external reference voltage
connected to the VRIN pin with VROUT left open.
The HI5905 is tested with VROUT, equal to 4.0V, connected
to VRIN. Internal to the converter, two reference voltages of
1.3V and 3.3V are generated for a fully differential input
signal range of
±2V.
In order to minimize overall converter noise, it is
recommended that adequate high frequency decoupling be
provided at the reference voltage input pin, VRIN.
Analog Input, Differential Connection
The analog input to the HI5905 can be configured in various
ways depending on the signal source and the required level
of performance. A fully differential connection (Figure 9) will
give the best performance for the converter.
Since the HI5905 is powered off a single +5V supply, the
analog input must be biased so it lies within the analog input
common mode voltage range of 1.0V to 4.0V. The
performance of the ADC does not change significantly with
the value of the analog input common mode voltage.
A 2.3V DC bias voltage source, VDC, half way between the
top and bottom internal reference voltages, is made
available to the user to help simplify circuit design when
using a differential input. This low output impedance voltage
source is not designed to be a reference but makes an
excellent bias source and stays within the analog input
common mode voltage range over temperature.
The difference between the converter’s two internal voltage
references is 2V. For the AC coupled differential input, (Figure
9), if VIN is a 2VP-P sinewave with -VIN being 180 degrees out
of phase with VIN, then VIN+ is a 2VP-P sinewave riding on a
DC bias voltage equal to VDC and VIN- is a 2VP-P sinewave
riding on a DC bias voltage equal to VDC. Consequently, the
converter will be at positive full scale, resulting in a digital data
output code with D13 (MSB) equal to a logic “0” and D0-D12
equal to logic “1” (see Table 1, A/D Code Table), when the
VIN+ input is at VDC+1V and the VIN- input is at VDC-1V
(VIN+ - VIN- = 2V). Conversely, the ADC will be at negative full
scale, resulting in a digital data output code with D13 (MSB)
equal to a logic “1” and D0-D12 equal to logic “0” (see Table 1,
A/D Code Table), when the VIN+ input is equal to VDC-1V and
VIN- is at VDC+1V (VIN+-VIN- = -2V). From this, the converter
is seen to have a peak-to-peak differential analog input voltage
range of ±2V.
The analog input can be DC coupled (Figure 10) as long as
the inputs are within the analog input common mode voltage
range (1.0V
≤ VDC ≤ 4.0V).
The resistors, R, in Figure 10 are not absolutely necessary
but may be used as load setting resistors. A capacitor, C,
connected from VIN+ to VIN- will help filter any high
frequency noise on the inputs, also improving performance.
Values around 20pF are sufficient and can be used on AC
coupled inputs as well. Note, however, that the value of
capacitor C chosen must take into account the highest
frequency component of the analog input signal.
VIN+
VDC
VIN-
HI5905
VIN
-VIN
FIGURE 9. AC COUPLED DIFFERENTIAL INPUT
VIN+
VDC
VIN-
HI5905
VIN
-VIN
R
R
C
VDC
VDC
FIGURE 10. DC COUPLED DIFFERENTIAL INPUT
HI5905


Similar Part No. - HI5905

ManufacturerPart #DatasheetDescription
logo
Intersil Corporation
HI5905 INTERSIL-HI5905 Datasheet
108Kb / 11P
   14-Bit, 5 MSPS A/D Converter
logo
Renesas Technology Corp
HI5905 RENESAS-HI5905 Datasheet
598Kb / 11P
   14-Bit, 5MSPS A/D Converter
March 2003
logo
Intersil Corporation
HI5905EVAL2 INTERSIL-HI5905EVAL2 Datasheet
108Kb / 11P
   14-Bit, 5 MSPS A/D Converter
HI5905EVAL2 INTERSIL-HI5905EVAL2 Datasheet
93Kb / 8P
   14-Bit, 5 MSPS, Military A/D Converter
logo
Renesas Technology Corp
HI5905EVAL2 RENESAS-HI5905EVAL2 Datasheet
598Kb / 11P
   14-Bit, 5MSPS A/D Converter
March 2003
More results

Similar Description - HI5905

ManufacturerPart #DatasheetDescription
logo
Renesas Technology Corp
HI5905 RENESAS-HI5905 Datasheet
598Kb / 11P
   14-Bit, 5MSPS A/D Converter
March 2003
HI5805 RENESAS-HI5805 Datasheet
581Kb / 12P
   12-Bit, 5MSPS A/D Converter
logo
Intersil Corporation
HI5805 INTERSIL-HI5805 Datasheet
113Kb / 12P
   12-Bit, 5MSPS A/D Converter
HI5805 INTERSIL-HI5805_05 Datasheet
613Kb / 12P
   12-Bit, 5MSPS A/D Converter
logo
Maxwell Technologies
7872 MAXWELL-7872 Datasheet
154Kb / 11P
   14-Bit A/D Converter
logo
National Semiconductor ...
DAC14135 NSC-DAC14135 Datasheet
842Kb / 12P
   14-bit, 135MSPS D/A Converter
CLC5958 NSC-CLC5958 Datasheet
1Mb / 13P
   14-bit, 52MSPS A/D Converter
logo
Intersil Corporation
HI5905 INTERSIL-HI5905 Datasheet
108Kb / 11P
   14-Bit, 5 MSPS A/D Converter
logo
Analog Devices
AD6645 AD-AD6645 Datasheet
2Mb / 20P
   14-Bit, 80 MSPS A/D Converter
REV. 0
AD9444 AD-AD9444 Datasheet
1Mb / 40P
   14-Bit, 80 MSPS, A/D Converter
REV. 0
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11


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
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com