AD7111A データシートの表示（PDF） - Analog Devices
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AD7111A Datasheet PDF : 8 Pages
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AD7111/AD7111A
AD7111A–ELECTRICAL
CHARACTERISTICS
(VDD = +5 V, VIN = –10 V dc, IOUT = AGND = DGND = O V output amplifier
AD711 except where noted)
Parameter
NOMINAL RESOLUTION
ACCURACY RELATIVE TO
0 dB ATTENUATION
0.375 dB Steps:
Accuracy ≤ ± 0.17 dB
Monotonic
0.75 dB Steps:
Accuracy ≤ ± 0.35 dB
Monotonic
1.5 dB Steps:
Accuracy ≤ ± 0.7 dB
Monotonic
3.0 dB Steps:
Accuracy ≤ ± 1.4 dB
Monotonic
6.0 dB Steps:
Accuracy ≤ ± 2.7 dB
Monotonic
GAIN ERROR
VIN INPUT RESISTANCE
RFB INPUT RESISTANCE
DIGITAL INPUTS
VIH (Input High Voltage)
VIL (Input High Voltage)
Input Leakage Current
SWITCHING CHARACTERISTICS1
tCS
tCH
tWR
tDS
tDH
POWER SUPPLY
VDD
IDD
AD7111AC Grade
TA = +25؇C TA = TMIN, TMAX
0.375
0.375
0 to 36
0 to 54
0 to 36
0 to 54
0 to 48
0 to 72
0 to 42
0 to 66
0 to 54
0 to 48
Full Range 0 to 78
0 to 66
0 to 54
Full Range Full Range
0 to 72
0 to 60
Full Range Full Range
± 0.1
± 0.15
9/11/15
9/11/15
9.3/11.5/15.7 9.3/11.5/15.7
2.4
2.4
0.8
0.8
±1
± 10
0
0
0
0
57
57
25
25
10
10
+5
+5
1
2
1
1
AD7111AB Grade
TA = +25؇C TA = TMIN, TMAX
0.375
0.375
Units
dB
0 to 30
0 to 48
0 to 30
0 to 48
0 to 42
0 to 72
0 to 36
0 to 60
0 to 48
0 to 85.5
0 to 42
0 to 72
0 to 60
0 to 48
Full Range Full Range
0 to 60
0 to 48
Full Range Full Range
± 0.15
± 0.20
7/11/18
7/11/18
7.3/11.5/18.8 7.3/11.5/18.8
2.4
2.4
0.8
0.8
±1
± 10
0
0
0
0
57
57
25
25
10
10
+5
+5
1
2
1
1
dB min
dB min
dB min
dB min
dB min
dB min
dB min
dB min
dB min
dB min
dB max
kΩ min/typ/max
kΩ min/typ/max
V min
V max
µA max
ns min
ns min
ns min
ns min
ns min
V
mA max
mA max
NOTE
1Sample tested at +25°C to ensure compliance.
Specifications subject to change without notice.
Conditions/Comments
Guaranteed Attenuation Ranges
for Specified Step Sizes
Full Range Is from 0 dB
to 88.5 dB
Digital Inputs = VDD
Chip Select to Write Setup Time
Chip Select to Write Hold Time
Write Pulse Width
Data Valid to Write Setup Time
Data Valid to Write Hold Time
Digital Inputs = VIL or VIH
CS = WR = 0 V
Digital Inputs = 0 V or VDD;
See Figure 6
AC PERFORMANCE CHARACTERISTICS These characteristics are included for design guidance only and are not subject
to test. VDD = +5 V, VIN = –10 V dc except where noted, IOUT = AGND = DGND = O V, output amplifier AD711 except where noted.
Parameter
DC Supply Rejection, ∆Gain/∆VDD
Propagation Delay
Digital-to-Analog Glitch Impulse
Output Capacitance, Pin 1
Input Capacitance, Pin 15 and Pin 16
Feedthrough at 1 kHz
Total Harmonic Distortion
Output Noise Voltage Density
Digital Input Capacitance
AD7111AC Grade
TA = +25؇C TA = TMIN, TMAX
0.001
1
0.005
1.5
10
20
50
50
7
7
–94
–90
–91
–91
70
70
7
7
AD7111AB Grade
TA = +25؇C TA = TMIN, TMAX Units
Conditions/Comments
0.001
1
10
0.005
1.5
20
50
50
7
7
–92
–90
–91
–91
70
70
7
7
dB per % max
µs max
nV secs typ
pF max
pF max
dB max
dB typ
nV/√Hz max
pF max
∆VDD = ± 10%, Input Code = 00000000
Full-Scale Change Measured from
WR Going High, CS = 0 V
Measured with AD843 as Output
Amplifier for Code Transition
10000000 to 00000000
C1 of Figure 1 is 0 pF
VIN = 6 V rms at 1 kHz
Includes AD711 Amplifier Noise
Specifications subject to change without notice.
REV. 0
–3–
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