AD7680 データシートの表示（PDF） - Analog Devices
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AD7680 Datasheet PDF : 24 Pages
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AD7680
SPECIFICATIONS1
Table 2. VDD = 4.5 V to 5.5 V, fSCLK = 2.5 MHz, fSAMPLE = 100 kSPS, unless otherwise noted; TA = TMIN to TMAX, unless otherwise noted
Parameter
A, B Versions1 Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal-to-Noise + Distortion (SINAD)2
83
dB min
fIN = 10 kHz sine wave
85
dB typ
Signal-to-Noise Ratio (SNR)2
84
dB min
86
dB typ
Total Harmonic Distortion (THD)2
−97
dB typ
Peak Harmonic or Spurious Noise (SFDR)2
−95
dB typ
Intermodulation Distortion (IMD)2
Second-Order Terms
−94
dB typ
Third-Order Terms
−100
dB typ
Aperture Delay
20
ns max
Aperture Jitter
30
ps typ
Full Power Bandwidth
8
MHz typ
@ −3 dB
2.2
MHz typ
@ −0.1 dB
DC ACCURACY
No Missing Codes
15
Bits typ
Integral Nonlinearity2
±4
LSB typ
Offset Error2
±1.68
mV max
Gain Error2
±0.038
% FS max
ANALOG INPUT
Input Voltage Ranges
0 to VDD
V
DC Leakage Current
±0.3
μA max
Input Capacitance
30
pF typ
LOGIC INPUTS
Input High Voltage, VINH
2.8
V min
Input Low Voltage, VINL
0.4
V max
Input Current, IIN
Input Capacitance, CIN2, 3
±0.3
μA max
Typically 10 nA, VIN = 0 V or VDD
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDD − 0.2
V min
ISOURCE = 200 μA
Output Low Voltage, VOL
Floating-State Leakage Current
0.4
V max
ISINK = 200 μA
±0.3
μA max
Floating-State Output Capacitance2, 3
10
pF max
Output Coding
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
8
μs max
20 SCLK cycles with SCLK at 2.5 MHz
9.6
μs max
24 SCLK cycles with SCLK at 2.5 MHz
Track-and-Hold Acquisition Time
1.5
μs max
400
ns max
Sine wave input ≤ 10 kHz
Throughput Rate
100
kSPS
See the Serial Interface section
POWER REQUIREMENTS
VDD
4.5/5.5
V min/V max
IDD
Digital I/PS = 0 V or VDD
Normal Mode (Static)
5.2
mA max
SCLK on or off. VDD = 5.5 V
Normal Mode (Operational)
4.8
mA max
fSAMPLE = 100 kSPS. VDD = 5.5 V; 3.3 mA typ
Full Power-Down Mode
Power Dissipation4
0.5
μA max
SCLK on or off. VDD = 5.5 V
VDD = 5.5 V
Normal Mode (Operational)
26.4
mW max
fSAMPLE = 100 kSPS
Full Power-Down
2.75
μW max
1Temperature range as follows: B Version: −40°C to +85°C.
2 See the Terminology section.
3 Sample tested during initial release to ensure compliance.
4 See the Power vs. Throughput Rate section.
Rev. A | Page 3 of 24
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