AD7713 Analog Devices, AD7713 Datasheet - Page 2

• Manufacturer Part Number: AD7713
• Description: CMOS, Low Power 24-Bit Sigma-Delta, Signal Conditioning ADC with Matched RTD Current Sources
• Manufacturer: Analog Devices

Specifications of AD7713

• Resolution (bits): 24bit
• # Chan: 3
• Sample Rate: 3.9kSPS
• Interface: Ser
• Analog Input Type: Diff-Bip,Diff-Uni,SE-Uni
• Ain Range: (2Vref/PGA Gain) p-p,Uni (Vref) x 4,Uni (Vref)/(PGA Gain)
• Adc Architecture: Sigma-Delta
• Pkg Type: DIP,SOIC

AD7713–SPECIFICATIONS
MCLK IN = 2 MHz, unless otherwise noted. All specifications T
Parameter
STATIC PERFORMANCE
ANALOG INPUTS
No Missing Codes
Output Noise
Integral Nonlinearity
Positive Full-Scale Error
Full-Scale Drift
Unipolar Offset Error
Unipolar Offset Drift
Bipolar Zero Error
Bipolar Zero Drift
Gain Drift
Bipolar Negative Full-Scale Error
Bipolar Negative Full-Scale Drift
Input Sampling Rate, f
Normal-Mode 50 Hz Rejection
Normal-Mode 60 Hz Rejection
AIN1, AIN2
AIN3
Input Voltage Range
Common-Mode Rejection (CMR)
Common-Mode 50 Hz Rejection
Common-Mode 60 Hz Rejection
Common-Mode Voltage Range
DC Input Leakage Current @ 25°C
Sampling Capacitance
Input Voltage Range
Gain Error
Gain Drift
Offset Error
Input Impedance
T
MIN
to T
7
11
11
MAX
5
5
2, 4
5
2, 4
S
8
2, 3, 4
6
6
6
5
2
10
6
6
A, S Versions
24
22
18
15
12
See Tables I and II
± 0.0015
1
0.3
0.5
0.25
0.5
0.25
2
± 0.0004
1
0.3
See Table III
100
100
0 to +V
± V
100
90
150
150
AGND to AV
10
1
20
0 to + 4
± 0.05
1
4
30
REF
(AV
REF
DD
9
V
MIN
= 5 V
REF
DD
to T
1
MAX
–2–
5%; DV
, unless otherwise noted.)
Unit
Bits min
Bits min
Bits min
Bits min
Bits min
% of FSR max
µV/°C typ
µV/°C typ
µV/°C typ
µV/°C typ
µV/°C typ
µV/°C typ
ppm/°C typ
% of FSR max
µV/°C typ
µV/°C typ
dB min
dB min
V max
V max
dB min
dB min
dB min
dB min
V min to V max
pA max
nA max
pF max
V max
% typ
ppm/°C typ
mV max
kΩ min
DD
= 5 V
5%; REF IN(+) = 2.5 V; REF IN(–) = AGND;
Conditions/Comments
Guaranteed by Design.
For Filter Notches ≤ 12 Hz.
For Filter Notch = 20 Hz.
For Filter Notch = 50 Hz.
For Filter Notch = 100 Hz.
For Filter Notch = 200 Hz.
Depends on Filter Cutoffs and Selected Gain.
Filter Notches ≤ 12 Hz; Typically ± 0.0003%.
For Gains of 1, 2.
For Gains of 4, 8, 16, 32, 64, 128.
For Gains of 1, 2.
For Gains of 4, 8, 16, 32, 64, 128.
For Gains of 1, 2.
For Gains of 4, 8, 16, 32, 64, 128.
Typically ± 0.0006%.
For Gains of 1, 2.
For Gains of 4, 8, 16, 32, 64, 128.
For Filter Notches of 2 Hz, 5 Hz, 10 Hz,
25 Hz, 50 Hz, ± 0.02
For Filter Notches of 2 Hz, 6 Hz, 10 Hz,
30 Hz, 60 Hz, ± 0.02
For Normal Operation.
Depends on Gain Selected.
Unipolar Input Range
(B/U Bit of Control Register = 1).
Bipolar Input Range
(B/U Bit of Control Register = 0).
At dc and AV
At dc and AV
For Filter Notches of 2 Hz, 5 Hz, 10 Hz,
25 Hz, 50 Hz, ± 0.02
For Filter Notches of 2 Hz, 6 Hz, 10 Hz,
30 Hz, 60 Hz, ± 0.02
For Normal Operation. Depends on Gain
Selected.
Additional Error Contributed by Resistor
Attenuator.
Additional Drift Contributed by Resistor
Attenuator.
Additional Error Contributed by Resistor
Attenuator.
DD
DD
= 5 V.
= 10 V.
f
f
f
f
NOTCH
NOTCH
NOTCH.
NOTCH.
.
.
REV. D