LTC1605IG Просмотр технического описания (PDF) - Linear Technology
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LTC1605IG Datasheet PDF : 16 Pages
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LTC1605
ELECTRICAL CHARACTERISTICS
Note 11: With CS low the falling R/C edge starts a conversion. If R/C
returns high at a critical point during the conversion it can create small
errors. For best results ensure that R/C returns high within 3µs after the
start of the conversion.
Note 12: As measured with fixed resistors shown in Figure 4. Adjustable to
zero with external potentiometer.
Note 13: Full-scale error is the worst-case of –FS or +FS untrimmed
deviation from ideal first and last code transitions, divided by the transition
voltage (not divided by the full-scale range) and includes the effect of
offset error.
Note 14: All specifications in dB are referred to a full-scale ±10V input.
Note 15: Full-power bandwidth is defined as full-scale input frequency at
which a signal-to-(noise + distortion) degrades to 60dB or 10 bits of
accuracy.
Note 16: Recovers to specified performance after (2 • FS) input
overvoltage.
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Supply Voltage
12.5
fSAMPLE = 100kHz
12.0
11.5
11.0
10.5
10.0
9.5
4.50
4.75
5.00
5.25
5.50
SUPPLY VOLTAGE (V)
1605 • TPC01
Typical INL Curve
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
16384
32768
CODE
49152 65535
1605 • TPC04
Supply Current vs Temperature
12.0
fSAMPLE = 100kHz
11.5
11.0
10.5
10.0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1605 • TPC02
Change in CAP Voltage vs
Load Current
0.05
0.04
0.03
0.02
0.01
0
–0.01
–0.02
–0.03
–0.04
–0.05
–0.06
–0.07
–0.08
–0.09
–0.10
–80 –70 –60 –50 –40 –30 –20 –10 0 10
LOAD CURRENT (mA)
1605 • TPC03
Typical DNL Curve
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
16384
32768
CODE
49152 65535
1605 • TPC05
Power Supply Feedthrough vs
Ripple Frequency
– 20
– 30
– 40
– 50
– 60
– 70
1
10 100 1k 10k 100k 1M
RIPPLE FREQUENCY (Hz)
1605 • TPC06
5
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