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MP8775 Datasheet(PDF) 4 Page - Exar Corporation

Part No. MP8775
Description  CMOS 20 MSPS, 8-Bit, High Speed Analog-to-Digital Converter
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Maker  EXAR [Exar Corporation]
Homepage  http://www.exar.com
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MP8775 Datasheet(HTML) 4 Page - Exar Corporation

   
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CLK
PIPELINE DELAY
N + 1
N + 2
Sample “N”
t HL
t DL
N -- 3
N -- 2
N -- 1
DATA N
DATA
1/FS
tPWH
tPWL
Figure 1. MP8775 Timing Diagram
MP8775
4
Rev. 3.01
ELECTRICAL CHARACTERISTICS TABLE (CONT’D)
Description
Symbol
Min
Typ
Max
Units
Conditions
AC PARAMETERS
Differential Gain Error
dG
2
%
FS = 4 x NTSC
Differential Phase Error
dPH
1
°
FS = 4 x NTSC
POWER SUPPLIES
Operating Voltage (AVDD, DVDD)9
VDD
5
V
Current (AVDD + DVDD)
IDD
17
25
mA
Does not include ref. current
25
°C
Notes:
1
Tester measures code transitions by dithering the voltage of the analog input (VIN). The difference between the measured and the
ideal code width (VREF/256) is the DNL error (Figure 2.). The INL error is the maximum distance (in LSBs) from the best fit line to
any transition voltage (Figure 3.). Accuracy is a function of the sampling rate (FS).
2
Guaranteed. Not tested.
3
Specified values guarantee functionality. Refer to other parameters for accuracy.
4
--1 dB bandwidth is a measure of performance of the A/D input stage (S/H + amplifier). Refer to other parameters for accuracy within
the specified bandwidth.
5
See VIN input equivalent circuit (Figure 4.). Switched capacitor analog input requires driver with low output resistance.
6
All inputs have diodes to DVDD and DGND. Input DC currents will not exceed specified limits for any input voltage between
DGND and DVDD.
7
tR, tF should be limited to >5 ns for best results.
8
Depends on the RC load connected to the output pin.
9
AGND and DGND pins are connected through the silicon substrate. Connect together at the package and to the analog ground plane.
Specifications are subject to change without notice
ABSOLUTE MAXIMUM RATINGS (TA = +25°C unless otherwise noted)1, 2, 3
VDD to GND
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VRT & VRB
VDD +0.5 to GND --0.5 V
. . . . . . . . . . . . . . . . . . . .
VIN
VDD +0.5 to GND --0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . .
All Inputs
VDD +0.5 to GND --0.5 V
. . . . . . . . . . . . . . . . . . . . .
All Outputs
VDD +0.5 to GND --0.5 V
. . . . . . . . . . . . . . . . . . .
Storage Temperature
--65 to +150°C
. . . . . . . . . . . . . . . . . . .
Lead Temperature (Soldering 10 seconds)
+300°C
. . . . . . .
Package Power Dissipation Rating @ 75°C
SOIC, SSOP, PDIP
700 mW
. . . . . . . . . . . . . . . . . . . . . . .
Derates above 75°C
9 mW/°C
. . . . . . . . . . . . . . . . . . . . . .
Notes:
1
Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a
stress rating only and functional operation at or above this specification is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.
2
Any input pin which can see a value outside the absolute maximum ratings should be protected by Schottky diode clamps
(HP5082-2835) from input pin to the supplies. All inputs have protection diodes which will protect the device from short
transients outside the supplies of less than 100mA for less than 100ms.
3
VDD refers to AVDD and DVDD. GND refers to AGND and DGND.


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