AD7716BS Ver la hoja de datos (PDF) - Analog Devices
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AD7716BS Datasheet PDF : 16 Pages
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AD7716–SPECIFICATIONS1, 2
(fCLKIN = 8 MHz; MODE Pin Is High (Slave Mode Operation); AVDD = DVDD = +5 V
؎ 5%; AVSS = –5 V ؎ 5%; AGND = DGND = 0 V; VREF = 2.5 V; Filter Cutoff = 146 Hz; Noise Measurement Bandwidth = 146 Hz; AIN Source
Resistance = 750 ⍀2 with 1 nF to AGND at each AIN. TA = TMIN to TMAX, unless otherwise noted.)
Parameter
B Version
Units
Test Conditions/Comments
STATIC PERFORMANCE
Resolution
Integral Linearity Error
Gain Error
Gain Match Between Channels
Gain TC
Offset Error
Offset Match Between Channels
Offset TC
Noise
22
0.003
0.006
1
0.5
30
0.2
0.1
4
11
Bits
% FSR typ
% FSR max
% FSR max
% FSR max
µV/°C typ
% FSR max
% FSR max
µV/°C typ
µV rms max
DYNAMIC PERFORMANCE
Sampling Rate
Output Update Rate
Filter Cutoff Frequency
Settling Time
Usable Dynamic Range4
Total Harmonic Distortion
Absolute Group Delay3
Differential Group Delay3
Channel-to-Channel Isolation
fCLKIN/14
fCLKIN/(14 ϫ 256 ϫ 2N)
fCLKIN/(3.81 ϫ 14 ϫ 256 ϫ 2N)
(3 ϫ 14 ϫ 256 ϫ 2N/fCLKIN)
See Table I
–90
–100
(3 ϫ 14 ϫ 256 ϫ 2N)/2fCLKIN
10
–85
dB typ
dB typ
ns typ
dB typ
ANALOG INPUT
Input Range
Input Capacitance
Input Bias Current
LOGIC INPUTS
VINH, Input High Voltage
VINL, Input Low Voltage
IIN, Input Current
SDATA, RFS
TFS
All Other Inputs
CIN, Input Capacitance3
LOGIC OUTPUTS
VOH, Output High Voltage
VOL, Output Low Voltage
± 2.5
10
1
2.4
0.8
+10/-130
+10/-650
± 10
10
2.4
0.4
Volts
pF typ
nA typ
V min
V max
µA max
µA max
µA max
pF max
V min
V max
Guaranteed No Missed Codes to 21 Bits3
See Table I for Typical Noise Performance vs. Programmed
Cutoff Frequency
570 kHz for fCLKIN = 8 MHz
N Is Decimal Equivalent of FC2, FC1, FC0 in Control Register
Input Frequency = 35 Hz
AIN = ± 10 mV p-p
Feedthrough from Any One Channel to the Other Three, with
35 Hz Full-Scale Sine Wave Applied to that Channel
Internal 50 kΩ Pull-Up Resistors
Internal 10 kΩ Pull-Up Resistor
|IOUT| ≤ 40 µA
|IOUT| ≤ 1.6 mA
POWER SUPPLIES
Reference Input
AVDD
DVDD
AVSS
IDD
ISS
Power Consumption
Power Supply Rejection5
2.4/2.6
4.75/5.25
4.75/5.25
–4.75/–5.25
7.5
2.5
50
–70
V min/V max
V min/V max
V min/V max
V min/V max
mA max
mA max
mW max
dB typ
4.8 mA typ
1.8 mA typ
35 mW typ
NOTES
1Operating temperature ranges as follows : B Version; –40°C to +85°C.
2The AIN pins present a very high impedance dynamic load which varies with clock frequency.
3Guaranteed by design and characterization. Digital filter has linear phase.
4Usable dynamic range is guaranteed by measuring noise and relating this to the full-scale input range.
5100 mV p-p, 120 Hz sine wave applied to each supply.
Specifications subject to change without notice.
–2–
REV. A
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