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AD7761BSTZ Datasheet(PDF) 7 Page - Analog Devices

No. de pieza AD7761BSTZ
Descripción Electrónicos  8-Channel, 16-Bit, Simultaneous Sampling ADC with Power Scaling, 110.8 kHz BW
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD7761BSTZ Datasheet(HTML) 7 Page - Analog Devices

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AD7761
Data Sheet
Rev. A | Page 6 of 75
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
EXTERNAL REFERENCE
Reference Voltage
VREF = (REFx+) − (REFx−)
1
AVDD1 − AVSS
V
Absolute Reference Voltage Limits2
Precharge reference buffers off
AVSS −
0.05
AVDD1 + 0.05
V
Precharge reference buffers on
AVSS
AVDD1
V
Average Reference Current
Fast mode
Precharge reference buffers off
±72
µA/V/channel
Precharge reference buffers on
±16
µA/V/channel
Average Reference Current Drift
Fast mode
Precharge reference buffers off
±1.7
nA/V/°C
Precharge reference buffers on
±49
nA/V/°C
Common-Mode Rejection
95
dB
DIGITAL FILTER RESPONSE
Low Ripple Wideband Filter
FILTER = 0
Decimation Rate
Up to six selectable decimation rates
32
1024
Group Delay
Latency
34/ODR
sec
Settling Time
Complete settling
68/ODR
sec
Pass-Band Ripple2
±0.005
dB
Pass Band
±0.005 dB bandwidth
0.4 × ODR
Hz
−0.1 dB bandwidth
0.409 × ODR
Hz
−3 dB bandwidth
0.433 × ODR
Hz
Stop Band Frequency
Attenuation > 105 dB
0.499 × ODR
Hz
Stop Band Attenuation
105
dB
Sinc5 Filter
FILTER = 1
Decimation Rate
Up to six selectable decimation rates
32
1024
Group Delay
Latency
3/ODR
sec
Settling Time
Complete settling
7/ODR
sec
Pass Band
−3 dB bandwidth
0.204 × ODR
Hz
REJECTION
AC Power Supply Rejection Ratio
(PSRR)
VIN = 0.1 V, AVDD1 = 5 V, AVDD2 =
5 V, IOVDD = 2.5 V
AVDD1
90
dB
AVDD2
100
dB
IOVDD
75
dB
DC PSRR
VIN = 1 V
AVDD1
100
dB
AVDD2
118
dB
IOVDD
90
dB
Analog Input Common-Mode
Rejection Ratio (CMRR)
DC
VIN = 0.1 V
95
dB
AC
Up to 10 kHz
95
dB
Crosstalk
−0.5 dBFS input on adjacent channels
−120
dB
CLOCK
See the Clock Selection section for
data sheet performance functionality
Crystal Frequency
8
32.768
34
MHz
External Clock (MCLK)
32.768
MHz
Duty Cycle
50:50
%
MCLK Pulse Width2
Logic Low
12.2
ns
Logic High
12.2
ns
CMOS Clock Input Voltage
See the Logic Inputs parameter
High, VINH
Low, VINL


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