AD7112JR 查看數據表（PDF） - Analog Devices
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AD7112JR Datasheet PDF : 12 Pages
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AD7112
TIMING SPECIFICATIONS1 (VDD = +5 V ؎ 5%; 0UT A = OUT B = AGND = DGND = O V; VIN A = VIN B = 10 V)
Parameter
TA = +25؇C TA = –40؇C to +85؇C Units
Conditions/Comments
CS to WR Setup Time
tCS
0
0
CS to WR Hold Time
tCH
0
0
DAC Select to WR Setup Time
tAS
4
4
DAC Select to WR Hold Time
tAH
0
0
Data Valid to WR Setup Time
tDS
55
55
Data Valid to WR Hold Time
tDH
10
10
WR Pulse Width
tWR
53
53
ns min
ns min
ns min
ns min
ns min
ns min
ns min
See Figure 3.
NOTES
1Timing specifications guaranteed by design not production tested. All input signals are specified with tr = tf = 5 ns (10% to 90% of 5 V) and timed from a voltage
level of 1.6 V.
Specifications subject to change without notice.
AC PERFORMANCE CHARACTERISTICS1 (VDD = +5 V ؎ 5%; 0UT A = OUT B = AGND = DGND = 0 V; VIN A =
VIN B = 10 V. Output amplifier AD712 except where noted.)
Parameter
TA =
+25؇C
TA =
–40؇C to
+85؇C
Units
Conditions/Comments
DC Supply Rejection ∆ Gain/∆ VDD
Digital-to-Analog Glitch Impulse
0.001
10
Output Capacitance, COUT A, COUT B 50
AC Feedthrough
VIN A to OUT A
–94
VIN B to OUT B
–94
Channel-to-Channel Isolation
VIN A to OUT B
–87
VIN B to OUT A
–87
Digital Feedthrough
1
Output Noise Voltage Density
(30 Hz to 50 kHz)
15
Total Harmonic Distortion
–91
0.005
10
50
–90
–90
–87
–87
1
15
–91
dB/% max
nV s typ
pF max
∆ VDD = ± 5%. Input Code = 00000000
Measured with AD843 as output amplifier for input
code transition 10000000 to 00000000.
dB max
dB max
VIN A, VIN B = 6 V rms at 1 kHz. DAC
Registers loaded with all 1s.
dB typ
dB typ
nV s typ
VIN A = 6 V rms at 10 kHz sine wave,
VIN B = 0 V. DAC Registers loaded with all 0s.
VIN B = 6 V rms at 10 kHz sine wave,
VIN A = 0 V. DAC Registers loaded with all 0s.
Measured with input code transitions of all 0s to all 1s.
nV/√Hz typ
dB typ
Measured between RFB A and OUT A or between
RFB B and OUT B.
VIN A = VIN B = 6 V rms at 1 kHz. DAC
Registers loaded with all 0s.
NOTES
1Guaranteed by design, not production tested.
Specifications subject to change without notice.
REV. 0
–3–
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