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AD7403-8BRIZ Datasheet(PDF) 4 Page - Analog Devices

Part # AD7403-8BRIZ
Description  16-Bit, Isolated Sigma-Delta Modulator
Download  25 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7403-8BRIZ Datasheet(HTML) 4 Page - Analog Devices

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Data Sheet
AD7403
SPECIFICATIONS
AD7403
VDD1 = 4.5 V to 5.5 V, VDD2 = 3 V to 5.5 V, VIN+ = −250 mV to +250 mV, VIN− = 0 V, TA = −40°C to +125°C, fMCLKIN1 = 5 MHz to 20 MHz,
tested with sinc3 filter, 256 decimation rate, as defined by Verilog code, unless otherwise noted. All voltages are relative to their respective
ground.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
STATIC PERFORMANCE
Resolution
16
Bits
Filter output truncated to 16 bits
Integral Nonlinearity (INL)2
±2
±12
LSB
Differential Nonlinearity (DNL)2
±0.99
LSB
Guaranteed no missed codes to 16 bits
Offset Error2
±0.2
±0.75
mV
Offset Drift vs. Temperature3
1.6
3.8
µV/°C
1.3
3.1
µV/°C
0°C to 85°C
Offset Drift vs. VDD13
50
µV/V
Gain Error2
±0.2
±0.8
% FSR
fMCLKIN = 16 MHz
±0.2
±0.8
% FSR
fMCLKIN = 20 MHz, TA = −40°C to +85°C
±0.2
±1.2
% FSR
fMCLKIN = 20 MHz
Gain Error Drift vs. Temperature3
65
95
ppm/°C
40
60
µV/°C
Gain Error Drift vs. VDD13
±0.6
mV/V
ANALOG INPUT
Input Voltage Range
−320
+320
mV
Full-scale range
−250
+250
mV
For specified performance
Input Common-Mode Voltage Range
−200 to +300
mV
Dynamic Input Current
±45
±50
µA
VIN+ = ±250 mV, VIN− = 0 V
0.05
µA
VIN+ = 0 V, VIN− = 0 V
DC Leakage Current
±0.01
±0.6
µA
Input Capacitance
14
pF
DYNAMIC SPECIFICATIONS
VIN+ = 1 kHz
Signal-to-Noise-and-Distortion Ratio (SINAD)2
81
87
dB
83
87
dB
−40°C to +85°C
Signal-to-Noise Ratio (SNR)2
86
88
dB
Total Harmonic Distortion (THD)2
−96
dB
Peak Harmonic or Spurious Noise (SFDR)2
−97
dB
Effective Number of Bits (ENOB)2
13.1
14.2
Bits
13.4
14.2
Bits
−40°C to +85°C
Noise Free Code Resolution2
14
Bits
ISOLATION TRANSIENT IMMUNITY2
25
30
kV/µs
LOGIC INPUTS
CMOS with Schmitt trigger
Input High Voltage (VIH)
0.8 × VDD2
V
Input Low Voltage (VIL)
0.2 × VDD2
V
Input Current (IIN)
±0.6
µA
Input Capacitance (CIN)
10
pF
LOGIC OUTPUTS
Output High Voltage (VOH)
VDD2 − 0.1
V
IO = −200 µA
Output Low Voltage (VOL)
0.4
V
IO = +200 µA
Rev. B | Page 3 of 24


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