AD7112JR Ver la hoja de datos (PDF) - Analog Devices
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AD7112JR Datasheet PDF : 12 Pages
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AD7112–SPECIFICATIONS (VDD = +5 V ؎ 5%; OUT A = OUT B = AGND = DGND = 0 V; VIN A = VIN B = 10 V.
Output amplifier AD712 except where noted. All specifications TMIN to TMAX unless otherwise noted.)
Parameter
C Version1
TA =
+25؇C
TA =
TMIN, TMAX
B Version
TA =
+25؇C
TA =
TMIN, TMAX Units
Conditions/Comments
ACCURACY
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
Output Leakage Current
OUT A, OUT B
Input Resistance,
VIN A, VIN B
Input Resistance Match
Feedback Resistance,
RFB A, RFB B
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
± 50
± 400
9/15
9/15
±1
±1
9.3/15.7 9.3/15.7
0.375
0.375
dB
Guaranteed Attenuation
Ranges for Specified Step Sizes.
0 to 30
0 to 48
0 to 30
0 to 48
dB min
dB min
0 to 42
0 to 72
0 to 36
0 to 60
dB min
dB min
0 to 48 0 to 42
0 to 85.5 0 to 72
dB min
dB min
Full Range Is 0 dB to 88.5 dB.
0 to 60 0 to 48
dB min
Full Range Full Range dB min
0 to 60 0 to 60
Full Range Full Range
± 0.15
± 0.2
dB min
dB min
dB max
Measured Using RFB A,
RFB B. Both DAC Registers
Loaded With All 0s.
± 50
± 400
nA max
9/15
9/15
±2
±2
kΩ min/max Typically 12 kΩ.
% max
9.3/15.7 9.3/15.7
kΩ min/max
LOGIC INPUTS
CS, WR,
DAC A/DAC B,
DB0–DB7
Input Low Voltage, VINL 0.8
0.8
Input High Voltage, VINH 2.4
2.4
Input Leakage Current ± 1
± 10
Input Capacitance2
10
10
0.8
0.8
2.4
2.4
±1
± 10
10
10
V max
V min
µA max
pF max
POWER REQUIREMENTS
VDD, Range3
4.75/5.25
2
2
4.75/5.25
2
2
4.75/5.25
2
2
NOTES
lTemperature range as follows: B, C Versions: –40°C to +85°C.
2Guaranteed by design, not production tested.
3The part will function with VDD = 5 V ± 10% with degraded performance.
Specifications subject to change without notice.
4.75/5.25
2
2
V min/max For Specified Performance.
mA max Logic Inputs = VIL or VIH
mA max Logic Inputs = 0 V or VDD
–2–
REV. 0
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