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MP8830 Datasheet(PDF) 5 Page - Exar Corporation

Part No. MP8830
Description  Triple 10-bit High Speed Analog-to-Digital Converter with Digitally Controlled References
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Maker  EXAR [Exar Corporation]
Homepage  http://www.exar.com
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MP8830 Datasheet(HTML) 5 Page - Exar Corporation

 
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MP8830
5
Rev. 1.00
Parameter
Test Conditions/Comments
Units
Max
Typ
Min
Symbol
Offset DAC
Resolution
N
6
Bits
Differential Non-Linearity
DNL
–0.5
0.5
LSB
Integral Non-Linearity
INL
1
LSB
VRB Range
ZSR
152
158
164
mV
This is measured as the voltage difference at
the clamp pin of the selected channel when
the offset DAC changed from 000 (hex) to 3F
(hex) with the gain DAC at 1FF (hex). Refer
to VRT and VRB EQNs in the theory of opera-
tion section.
Maximum Offset Change per Cycle2
MOC
100
% FSR
After the specified maximum change in offset
DAC setting, the ADC should output the same
code
1 LSB for all of the following conver-
sions assuming the analog input remains
fixed, i.e. DC.
Full Scale Settling Time2
ts-od
200
ns
For a 00 (hex) to 3F (hex) change of offset
DAC code.
Black Level Clamp Switch
On Resistance
RON
100
150
Effective RIN at clamp pin.
Input Leakage
ILCLP
25
nA
Offset DAC at 00 (hex) (worst case condition).
Clamp Switching Charge Injection2
QCLP
50
pC
Offset DAC at 00 (hex) (worst case condition).
Voltage at Clamp Pin
VCLP
170
180
190
mV
Offset by 4 LSB from bottom tap of ADC lad-
der. Gain = 000 (H). Offset DAC = 00.
Reference Voltage Requirements (See Theory of Operation)
Reference Voltage
VREF
0.93
1
1.07
V
All linearity specifications assume the refer-
ence voltage = AVDD X ( 0.2 ).
0.5
1.15
V
Functional.
Calibration Voltage
VCAL
AGND
AVDD V
Sense Pins Input Resistance
(ASENS, BSENS, CSENS)
RINS
560
RINS is measured from the sense pin to
AGND2, BGND2, CGND2 with the power
turned off and test voltage less than 250 mV.
Power Supplies (Note: All GND pins are substrate)
Analog Positive Supply
AVDD
4.75
5
5.25
V
Bypass power supply pins.
Digital Positive Supply
DVDD
AVDD
AVDD
AVDD V
Bypass power supply pins.
Analog Negative Supply
AGND
0
0
0
V
Digital Negative Supply
DGND
0
0
0
V
Power Supply Rejection
PSRR
–60
dB
f=1 KHz.
Supply Current
IDD
100
130
mA
During specified operation.
Digital Characteristics
Digital Input High Voltage for Control
Pins
VIH
3.5
V
All digital input pins other than DAC data
inputs.
Digital Input Low Voltage for Control
Pins
VIL
1.5
V
All digital input pins other than DAC data
inputs.
Digital Input High Voltage for DAC
Input Pins
VIH
2.4
V
DAC data inputs, CD0-CD14
Digital Input Low Voltage for DAC
Input Pins
VIL
0.4
V
DAC data inputs, CD0-CD14
VOL
VOL
0.5
V
@ IOL = 4 mA
VOH
VOH
4.5
@ IOH = 4 mA
Digital Input Leakage Current
IIN
–10
10
µA


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