EVAL-AD7887CB 查看數據表（PDF） - Analog Devices
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EVAL-AD7887CB
Analog Devices
EVAL-AD7887CB Datasheet PDF : 24 Pages
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AD7887
SPECIFICATIONS
VDD = 2.7 V to 5.25 V, VREF = 2.5 V, external/internal reference unless otherwise noted, fSCLK = 2 MHz, TA = TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
DYNAMIC PERFORMANCE
Signal to Noise + Distortion Ratio (SNR)2, 3
Total Harmonic Distortion (THD)2
Peak Harmonic or Spurious Noise2
Intermodulation Distortion (IMD)2
Second-Order Terms
Third-Order Terms
Channel-to-Channel Isolation2
Full-Power Bandwidth
DC ACCURACY
Resolution
Integral Nonlinearity2
Differential Nonlinearity2
Offset Error2
Offset Error Match2
Gain Error2
Gain Error Match2
ANALOG INPUT
Input Voltage Ranges
Leakage Current
Input Capacitance
REFERENCE INPUT/OUTPUT
REFIN Input Voltage Range
Input Impedance
REFOUT Output Voltage
REFOUT Temperature Coefficient
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input Capacitance, CIN4
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
Floating-State Leakage Current
Floating-State Output Capacitance5
Output Coding
A Version1 B Version1
71
71
−80
−80
–80
−80
−80
−80
−80
−80
−80
−80
2.5
2.5
12
12
±2
±1
±2
±1
±3
±3
±4
±4
±6
±6
0.5
0.5
±2
±2
±1
±1
±6
±6
2
2
0 to VREF
±5
20
0 to VREF
±5
20
2.5/VDD
10
2.45/2.55
±50
2.5/VDD
10
2.45/2.55
±50
2.4
2.4
2.1
2.1
0.8
0.8
±1
±1
10
10
VDD − 0.5 VDD − 0.5
0.4
0.4
±1
±1
10
10
Straight (Natural) Binary
Unit
dB typ
dB typ
dB typ
dB typ
dB typ
dB typ
MHz typ
Bits
LSB max
LSB max
LSB max
LSB max
LSB typ
LSB max
LSB max
LSB max
LSB typ
LSB max
V
μA max
pF typ
V min/max
kΩ typ
V min/max
ppm/°C typ
V min
V min
V max
μA max
pF max
V min
V max
μA max
pF max
Test Conditions/Comments
fIN = 10 kHz sine wave, fSAMPLE = 125 kSPS
fIN = 10 kHz sine wave, fSAMPLE = 125 kSPS
fIN = 10 kHz sine wave, fSAMPLE = 125 kSPS
fa = 9.983 kHz, fb = 10.05 kHz, fSAMPLE = 125 kSPS
fa = 9.983 kHz, fb = 10.05 kHz, fSAMPLE = 125 kSPS
fIN = 25 kHz
@ 3 dB
Any channel
Guaranteed no missing codes to 11 bits (A Grade)
VDD = 5 V, dual-channel mode
VDD = 3 V, dual-channel mode
Single-channel mode
Dual-channel mode
Single-channel mode, external reference
Single-channel mode, internal reference
Functional from 1.2 V
Very high impedance if internal reference disabled
VDD = 4.75 V to 5.25 V
VDD = 2.7 V to 3.6 V
VDD = 2.7 V to 5.25 V
Typically 10 nA, VIN = 0 V or VDD
ISOURCE = 200 μA
VDD = 2.7 V to 5.25 V
ISINK = 200 μA
Rev. D | Page 3 of 24
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