AD7190 Analog Devices, AD7190 Datasheet - Page 5

• Manufacturer Part Number: AD7190
• Description: 4.8 kHz Ultra-Low Noise 24-Bit Sigma-Delta ADC with PGA
• Manufacturer: Analog Devices

Specifications of AD7190

• Resolution (bits): 24bit
• # Chan: 4
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref/PGA Gain) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

Parameter
TEMPERATURE SENSOR
BRIDGE POWER-DOWN SWITCH
BURNOUT CURRENTS
DIGITAL OUTPUTS (P0 to P3)
INTERNAL/EXTERNAL CLOCK
LOGIC INPUTS
LOGIC OUTPUT (DOUT/RDY)
SYSTEM CALIBRATION
Normal Mode Rejection
Common-Mode Rejection
Reference Detect Levels
Accuracy
Sensitivity
R
Allowable Current
AIN Current
Output High Voltage, V
Output Low Voltage, V
Floating-State Leakage Current
Floating-State Output
Internal Clock
External Clock/Crystal
Input High Voltage, V
Input Low Voltage, V
Hysteresis
Input Currents
Output High Voltage, V
Output Low Voltage, V
Output High Voltage, V
Output Low Voltage, V
Floating-State Leakage Current
Floating-State Output
Data Output Coding
Full-Scale Calibration Limit
Zero-Scale Calibration Limit
Input Span
ON
Capacitance
Frequency
Duty Cycle
Frequency
Input Low Voltage, V
Input High Voltage, V
Input Current
Capacitance
2
2
2
INL
INH
2
OL
OL
OL
2
OH
INL
OH
OH
2
INH
2
2
2
2
2
2
2
AD7190B
Same as for analog inputs
95
0.3
0.6
±2
2815
10
30
500
4
0.4
±100
10
4.92 ± 4%
50:50
4.9152
2.4576/5.12
0.8
0.4
2.5
3.5
±10
2
0.8
0.1/0.25
±10
DV
0.4
4
0.4
±10
10
Offset binary
1.05 × FS
−1.05 × FS
0.8 × FS
2.1 × FS
DD
− 0.6
Rev. B | Page 5 of 40
Unit
dB typ
V min
V max
°C typ
Codes/°C typ
Ω max
mA max
nA nom
V min
V max
nA max
pF typ
MHz min/max
% typ
MHz nom
MHz min/max
V max
V max
V min
V min
μA max
V min
V max
V min/V max
μA max
V min
V max
V min
V max
μA max
pF typ
V max
V min
V min
V max
Test Conditions/Comments
Applies after user calibration at 25°C.
Bipolar mode.
Continuous current.
Analog inputs must be buffered and chop
disabled.
AV
AV
DV
DV
DV
DV
DV
DV
DV
DV
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
= 5V, I
= 5V, I
= 5 V.
= 3 V.
= 3 V.
= 5 V.
= 3 V, I
= 3 V, I
= 5 V, I
= 5 V, I
SOURCE
SINK
SOURCE
SINK
SOURCE
SINK
= 800 μA.
= 100 μA.
= 1.6 mA.
= 200 μA.
= 100 μA.
= 200 μA.
1
AD7190