Datasheet

Parameter Y Versions
1
Units Conditions/Comments
STATIC PERFORMANCE
No Missing Codes 24 Bits min Guaranteed by Design. For Filter Notches ≤ 60 Hz
22 Bits min For Filter Notch = 100 Hz
18 Bits min For Filter Notch = 250 Hz
15 Bits min For Filter Notch = 500 Hz
12 Bits min For Filter Notch = 1 kHz
Output Noise See Tables I to IV Depends on Filter Cutoffs and Selected Gain
Integral Nonlinearity ±0.001 % of FSR max Filter Notches ≤ 60 Hz.
Unipolar Offset Error See Note 2
Unipolar Offset Drift
3
0.4 µV/°C typ For Gains of 1, 2, 4
0.1 µV/°C typ For Gains of 8, 16, 32, 64, 128
Bipolar Zero Error See Note 2
Bipolar Zero Drift
3
0.4 µV/°C typ For Gains of 1, 2, 4
0.1 µV/°C typ For Gains of 8, 16, 32, 64, 128
Positive Full-Scale Error
4
See Note 2
Full-Scale Drift
3, 5
0.4 µV/°C typ For Gains of 1, 2, 4
0.1 µV/°C typ For Gains of 8, 16, 32, 64, 128
Gain Error
6
See Note 2
Gain Drift
3, 7
0.2 ppm of FSR/
°C typ
Bipolar Negative Full-Scale Error
2
±0.0015 % of FSR max AV
DD
= 5 V. Typically ±0.0004%
±0.003 % of FSR max AV
DD
= 3 V. Typically ±0.0004%
Bipolar Negative Full-Scale Drift
3
1 µV/°C typ For Gains of 1 to 4
0.6 µV/°C typ For Gains of 8 to 128
ANALOG INPUTS/REFERENCE INPUTS Specifications for AIN and REF IN Unless Noted
Input Common-Mode Rejection (CMR)
8
90 dB min At DC. Typically 102 dB.
Normal-Mode 50 Hz Rejection
8
100 dB min For Filter Notches of 10 Hz, 25 Hz, 50 Hz, ±0.02 × f
NOTCH
Normal-Mode 60 Hz Rejection
8
100 dB min For Filter Notches of 10 Hz, 30 Hz, 60 Hz, ±0.02 × f
NOTCH
Common-Mode 50 Hz Rejection
8
150 dB min For Filter Notches of 10 Hz, 25 Hz, 50 Hz, ±0.02 × f
NOTCH
Common-Mode 60 Hz Rejection
8
150 dB min For Filter Notches of 10 Hz, 30 Hz, 60 Hz, ±0.02 × f
NOTCH
Absolute/Common-Mode REF IN Voltage
8
AGND to AV
DD
V min to V max
Absolute/Common-Mode AIN Voltage
8, 9
AGND – 30 mV V min BUF Bit of Setup Register = 0
AV
DD
+ 30 mV V max
Absolute/Common-Mode AIN Voltage
8, 9
AGND + 50 mV V min BUF Bit of Setup Register = 1
AV
DD
– 1.5 V V max
AIN DC Input Current
8
1 nA max
AIN Sampling Capacitance
8
7 pF max
AIN Differential Voltage Range
10
0 to +V
REF
/GAIN
11
nom Unipolar Input Range (B/U Bit of Filter High Register = 1)
±V
REF
/GAIN nom Bipolar Input Range (B/U Bit of Filter High Register = 0)
AIN Input Sampling Rate, f
S
GAIN × f
CLK␣ IN
/64 For Gains of 1 to 4
f
CLK␣ IN
/8 For Gains of 8 to 128
Reference Input Range
REF IN(+) – REF IN(–) Voltage 1/1.75 V min/max AV
DD
= 2.7 V to 3.3 V. V
REF
= 1.25 ±1% for Specified Performance
REF IN(+) – REF IN(–) Voltage 1/3.5 V min/max AV
DD
= 4.75 V to 5.25 V. V
REF
= 2.5 ±1% for Specified Performance
REF IN Input Sampling Rate, f
S
f
CLK IN
/64
LOGIC INPUTS
Input Current ±10 µA max
All Inputs Except MCLK IN
V
INL
, Input Low Voltage 0.8 V max DV
DD
= 5 V
0.4 V max DV
DD
= 3 V
V
INH
, Input High Voltage 2.4 V min DV
DD
= 5 V
2 V min DV
DD
= 3 V
SCLK & DIN Only (Schmitt Triggered Input) DV
DD
= 5 V NOMINAL
V
T+
1.4/3 V min/V max
V
T–
0.8/1.4 V min/V max
V
T+
– V
T–
0.4/0.8 V min/V max
SCLK & DIN Only (Schmitt Triggered Input) DV
DD
= 3 V NOMINAL
V
T+
1/2.5 V min/V max
V
T–
0.4/1.1 V min/V max
V
T+
– V
T–
0.375/0.8 V min/V max
MCLK In Only DV
DD
= 5 V NOMINAL
V
INL
, Input Low Voltage 0.8 V max
V
INH
, Input High Voltage 3.5 V min
MCLK In Only DV
DD
= 3 V NOMINAL
V
INL
, Input Low Voltage 0.4 V max
V
INH
, Input High Voltage 2.5 V min
LOGIC OUTPUTS (Including MCLK OUT)
V
OL
, Output Low Voltage 0.4 V max I
SINK
= 800␣ µA with DV
DD
= 5 V. Except for MCLK OUT
12
V
OL
, Output Low Voltage 0.4 V max I
SINK
= 100␣ µA with DV
DD
= 3 V. Except for MCLK OUT
12
V
OH
, Output High Voltage 4 V min I
SOURCE
= 200 µA with DV
DD
= 5 V. Except for MCLK OUT
12
AD7714Y–SPECIFICATIONS
(AV
DD
= DV
DD
= +2.7␣ V to +3.3␣ V or 4.75 V to 5.25 V, REF IN(+) = +1.25␣ V; with AV
DD
= 3 V
and +2.5 V with AV
DD
= 5 V; REF␣ IN(–) = AGND; MCLK IN = 2.4576␣ MHz unless otherwise noted. All specifications T
MIN
to T
MAX
unless otherwise noted.)
AD7714
REV. C
–5–