AD7714
(AVDD = DVDD = +2.7 V to +3.3 V or 4.75 V to 5.25 V, REF IN(+) = +1.25 V; with AVDD = 3 V
and +2.5 V with AVDD = 5 V; REF IN(–) = AGND; MCLK IN = 2.4576 MHz unless otherwise noted. All specifications TMIN to TMAX unless otherwise noted.)
AD7714Y–SPECIFICATIONS
Parameter
Y Versions1
Units
Conditions/Comments
STATIC PERFORMANCE
No Missing Codes
24
22
18
15
Bits min
Bits min
Bits min
Bits min
Bits min
Guaranteed by Design. For Filter Notches ≤ 60 Hz
For Filter Notch = 100 Hz
For Filter Notch = 250 Hz
For Filter Notch = 500 Hz
For Filter Notch = 1 kHz
12
Output Noise
See Tables I to IV
Depends on Filter Cutoffs and Selected Gain
Filter Notches ≤ 60 Hz.
Integral Nonlinearity
Unipolar Offset Error
Unipolar Offset Drift3
±0.001
See Note 2
0.4
% of FSR max
µV/°C typ
µV/°C typ
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
0.1
Bipolar Zero Error
Bipolar Zero Drift3
See Note 2
0.4
0.1
See Note 2
0.4
0.1
µV/°C typ
µV/°C typ
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Positive Full-Scale Error4
Full-Scale Drift3, 5
µV/°C typ
µV/°C typ
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Gain Error6
See Note 2
0.2
Gain Drift3, 7
ppm of FSR/
°C typ
% of FSR max
% of FSR max
µV/°C typ
Bipolar Negative Full-Scale Error2
Bipolar Negative Full-Scale Drift3
±0.0015
±0.003
1
AVDD = 5 V. Typically ±0.0004%
AVDD = 3 V. Typically ±0.0004%
For Gains of 1 to 4
0.6
µV/°C typ
For Gains of 8 to 128
ANALOG INPUTS/REFERENCE INPUTS
Input Common-Mode Rejection (CMR)8
Normal-Mode 50 Hz Rejection8
Specifications for AIN and REF IN Unless Noted
At DC. Typically 102 dB.
For Filter Notches of 10 Hz, 25 Hz, 50 Hz, ±0.02 × fNOTCH
For Filter Notches of 10 Hz, 30 Hz, 60 Hz, ±0.02 × fNOTCH
For Filter Notches of 10 Hz, 25 Hz, 50 Hz, ±0.02 × fNOTCH
For Filter Notches of 10 Hz, 30 Hz, 60 Hz, ±0.02 × fNOTCH
90
100
100
150
dB min
dB min
dB min
dB min
dB min
V min to V max
V min
V max
V min
V max
nA max
pF max
Normal-Mode 60 Hz Rejection8
Common-Mode 50 Hz Rejection8
Common-Mode 60 Hz Rejection8
150
Absolute/Common-Mode REF IN Voltage8
AGND to AVDD
AGND – 30 mV
AVDD + 30 mV
AGND + 50 mV
AVDD – 1.5 V
1
9
Absolute/Common-Mode AIN Voltage8,
BUF Bit of Setup Register = 0
BUF Bit of Setup Register = 1
Absolute/Common-Mode AIN Voltage8, 9
AIN DC Input Current8
AIN Sampling Capacitance8
AIN Differential Voltage Range10
7
0 to +VREF/GAIN11 nom
Unipolar Input Range (B/U Bit of Filter High Register = 1)
Bipolar Input Range (B/U Bit of Filter High Register = 0)
For Gains of 1 to 4
±VREF/GAIN
GAIN × fCLK IN/64
fCLK IN/8
nom
AIN Input Sampling Rate, fS
For Gains of 8 to 128
Reference Input Range
REF IN(+) – REF IN(–) Voltage
REF IN(+) – REF IN(–) Voltage
REF IN Input Sampling Rate, fS
1/1.75
1/3.5
fCLK IN/64
V min/max
V min/max
AVDD = 2.7 V to 3.3 V. VREF = 1.25 ±1% for Specified Performance
AVDD = 4.75 V to 5.25 V. VREF = 2.5 ±1% for Specified Performance
LOGIC INPUTS
Input Current
±10
µA max
All Inputs Except MCLK IN
VINL, Input Low Voltage
0.8
0.4
2.4
2
V max
V max
V min
V min
DVDD = 5 V
DVDD = 3 V
DVDD = 5 V
DVDD = 3 V
VINH, Input High Voltage
SCLK & DIN Only (Schmitt Triggered Input)
VT+
VT–
VT+ – VT–
DVDD = 5 V NOMINAL
1.4/3
0.8/1.4
0.4/0.8
V min/V max
V min/V max
V min/V max
SCLK & DIN Only (Schmitt Triggered Input)
VT+
VT–
DVDD = 3 V NOMINAL
1/2.5
0.4/1.1
0.375/0.8
V min/V max
V min/V max
V min/V max
VT+ – VT–
MCLK In Only
DVDD = 5 V NOMINAL
DVDD = 3 V NOMINAL
VINL, Input Low Voltage
VINH, Input High Voltage
MCLK In Only
0.8
3.5
V max
V min
VINL, Input Low Voltage
VINH, Input High Voltage
0.4
2.5
V max
V min
LOGIC OUTPUTS (Including MCLK OUT)
VOL, Output Low Voltage
VOL, Output Low Voltage
0.4
0.4
4
V max
V max
V min
ISINK = 800 µA with DVDD = 5 V. Except for MCLK OUT12
ISINK = 100 µA with DVDD = 3 V. Except for MCLK OUT12
ISOURCE = 200 µA with DVDD = 5 V. Except for MCLK OUT12
VOH, Output High Voltage
–5–
REV. C
ADI [ ADI ]
