EVAL-AD7780EBZ Analog Devices Inc, EVAL-AD7780EBZ Datasheet - Page 3
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EVAL-AD7780EBZ
Manufacturer Part Number
EVAL-AD7780EBZ
Description
ADC Converter Evaluation Board
Manufacturer
Analog Devices Inc
Datasheet
1.AD7780BRUZ.pdf
(16 pages)
Specifications of EVAL-AD7780EBZ
Silicon Manufacturer
Analog Devices
Application Sub Type
ADC
Kit Application Type
Data Converter
Silicon Core Number
AD7780
Kit Contents
Board And Literature
Number Of Adc's
1
Number Of Bits
24
Sampling Rate (per Second)
16.7
Data Interface
SPI™
Inputs Per Adc
1 Differential
Input Range
±5 V
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 105°C
Utilized Ic / Part
AD7780
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
SPECIFICATIONS
AV
Table 2.
Parameter
ADC CHANNEL
ANALOG INPUTS
REFERENCE
BRIDGE POWER-DOWN SWITCH (BPDSW)
INTERNAL CLOCK
Output Update Rate (f
No Missing Codes
Resolution Peak-to-Peak
RMS Noise
Integral Nonlinearity
Offset Error
Offset Error Drift vs. Temperature
Full-Scale Error
Gain Drift vs. Temperature
Power Supply Rejection
Normal-Mode Rejection
Common-Mode Rejection
Differential Input Voltage Range
Absolute AIN Voltage Limits
Average Input Current
Average Input Current Drift
Frequency
Duty Cycle
External REFIN Voltage
Reference Voltage Range
Absolute REFIN Voltage Limits
Average Reference Input Current
Average Reference Input Current Drift
Normal-Mode Rejection
Common-Mode Rejection
R
Allowable Current
DD
ON
50 Hz, 60 Hz
50 Hz, 60 Hz
DC
50 Hz, 60 Hz
= 2.7 V to 5.25 V, V
2
2
ADC
2
)
REF
2
2
= AV
2
DD
, DV
Min
24
63
72
GND + 100 mV
GND + 450 mV
GND + 1.1
GND + 1.5
0.5
GND − 30 mV
64 − 3%
DD
= 2.7 V to 5.25 V, GND = 0 V, all specifications T
Typ
10
16.7
±6
±6
±200
±1
±2
±10
±150
±10
±0.25
±2
100
120
75
90
90
90
110
±V
±1
±250
±3
AV
400
±0.15
110
50:50
REF
DD
Rev. A | Page 3 of 16
/gain
Max
AV
AV
9
30
AV
AV
AV
AV
64 + 3%
DD
DD
DD
DD
DD
DD
− 100 mV
− 1.1
− 1.1
− 1.5
+ 30 mV
Unit
Hz
Hz
Bits
ppm of FSR
μV
μV
μV
μV
nV/°C
nV/°C
nV/°C
% of FS
ppm/°C
dB
dB
dB
dB
dB
dB
dB
V
V
V
V
V
nA
pA typ
pA/°C
V
V
V
nA/V
nA/V/°C
dB
Ω
mA
kHz
%
MIN
to T
MAX
, unless otherwise noted.
FILTER = 1, settling time = 3/f
FILTER = 0, settling time = 2/f
See
See
Gain = 128 with FILTER = 1
Gain = 1 with FILTER = 1
Gain = 128 with FILTER = 0
Gain = 1 with FILTER = 0
Gain = 128
Gain = 1, AIN = 1 V
Gain = 128, AIN = 7.81 mV
Gain = 1
Same as for analog inputs
Controlled via the PDRST pin
Test Conditions/Comments
Gain = 1 with FILTER = 1
Gain = 1 with FILTER = 0
Gain = 128, FILTER = 1, AIN = 7.81 mV
Gain = 128, FILTER = 0, AIN = 7.81 mV
50 Hz ± 1 Hz, 60 Hz ± 1 Hz, f
16.7 Hz
50 Hz ± 1 Hz, 60 Hz ± 1 Hz, f
50 Hz ± 1 Hz, 60 Hz ± 1 Hz
V
or 128
Gain = 1
Gain = 128, FILTER = 0
Gain = 128, FILTER = 1, AV
Gain = 128, FILTER = 1, AV
Gain = 128
REFIN = REFIN(+) − REFIN(−)
Continuous current
REF
= REFIN(+) − REFIN(−), gain = 1
Table 7
Table 7
and
and
Table 8
Table 8
AD7780
1
ADC
DD
DD
ADC
≤ 3.6 V
> 3.6 V
= 10 Hz
ADC
ADC
=