AD7170 Analog Devices, AD7170 Datasheet - Page 3

• Manufacturer Part Number: AD7170
• Description: 12-Bit Low Power ??? ADC
• Manufacturer: Analog Devices

Specifications of AD7170

• Resolution (bits): 12bit
• # Chan: 1
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

Data Sheet
SPECIFICATIONS
V
Table 1.
Parameter
ADC CHANNEL
ANALOG INPUTS
REFERENCE
INTERNAL CLOCK
LOGIC INPUTS
DD
Output Data Rate (f
No Missing Codes
Noise Free Resolution
Resolution Peak-to-Peak (p-p)
Effective Resolution (ENOB)
RMS Noise
Integral Nonlinearity
Offset Error
Offset Error Drift vs. Temperature
Full-Scale Error
Gain Drift vs. Temperature
Power Supply Rejection
Differential Input Voltage Range
Absolute AINx Voltage Limits
Average Input Current
Average Input Current Drift
DC Common-Mode Rejection
Absolute REFIN Voltage Limits
Average Reference Input Current
Frequency
SCLK, PDRST
SCLK (Schmitt-Triggered Input)
External REFIN Voltage
Reference Voltage Range
Average Reference Input Current
DC Common-Mode Rejection
= 2.7 V to 5.25 V, V
Drift
Hysteresis
Input Currents
Input Capacitance
Input Low Voltage, V
Input High Voltage, V
2
2
2
ADC
REF
)
2
INL
INH
= V
2
DD
2
2
, GND = 0 V, all specifications T
2
Min
12
GND − 0.03
0.5
GND − 0.03
64 − 5%
1.8
2.4
AD7170B
Typ
125
12
12
12
See Table 6
±0.1
±200
±250
±0.015
±0.07
85
±V
±400
±60
90
V
400
±0.15
110
100
140
±2
5
DD
REF
Rev. A | Page 3 of 16
1
MIN
to T
Max
64 + 5%
V
V
V
0.4
0.8
DD
DD
DD
+ 0.03
MAX
+ 0.03
, unless otherwise noted.
Unit
Hz
Bits
Bits
Bits
Bits
μV
LSB
μV
nV/°C
% of FS
LSB/°C
dB
V
V
nA/V
pA/V/°C
dB
V
V
V
nA/V
nA/V/°C
dB
kHz
V
V
V
V
mV
mV
μA
pF
Test Conditions/Comments
Settling time = 3/f
V
V
V
V
V
V
Input current varies with input
voltage
V
REFIN = REFIN(+) − REFIN(−)
V
V
V
V
V
V
V
All digital inputs
INx
INx
INx
INx
INx
REF
INx
DD
DD
DD
DD
DD
DD
IN
= V
= 0 V, V
= 0 V, V
= 0 V, V
= 0 V, V
= 1 V
= 1 V
= 3 V
= 5 V
= 3 V
= 5 V
= 3 V
= 5 V
= REFIN(+) − REFIN(−)
DD
or GND
REF
REF
REF
REF
= V
= V
= V
= V
DD
DD
DD
DD
ADC
AD7170