LTC1592C データシートの表示（PDF） - Linear Technology
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LTC1592C Datasheet PDF : 16 Pages
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LTC1588/LTC1589/LTC1592
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = TMIN to TMAX, VCC = 5V, VREF = 5V, IOUT2 = AGND = GND = 0V.
SYMBOL PARAMETER
Power Supply
VCC
Supply Voltage
ICC
Supply Current, VCC
CONDITIONS
Digital Inputs = 0V or VCC
MIN TYP MAX
q 4.5
5
5.5
q
10
UNITS
V
µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: ±1LSB = ±0.0015% of full scale = ±15.3ppm of full scale
(LTC1592). ±1LSB = ±0.006% of full scale = ±61.2ppm of full scale
(LTC1589). ±1LSB = 0.024% of full scale = ±244.8ppm of full scale
(LTC1588).
Note 3: Using internal feedback resistor.
Note 4: Guaranteed by design, not subject to test.
Note 5: IOUT1 with DAC register loaded to all 0s.
Note 6: Typical temperature coefficient is 100ppm/°C.
Note 7: To 0.0015% for a full-scale change, measured from the falling
edge of LD for the LTC1592 only.
Note 8: REF = 6VRMS at 1kHz. DAC register loaded with all 1s. Output
amplifier = LT1468.
Note 9: Calculation from en = √4kTRB where: k = Boltzmann constant
(1.38E-23 J/°K); R = resistance (Ω); T = temperature (°K); B = bandwidth
(Hz).
Note 10: Midscale transition code: 32767 to 32768 for the LTC1592, 8191
to 8192 for the LTC1589, 2047 to 2048 for the LTC1588.
Note 11: R1 and R2 are measured between R1 and RCOM, R2 and RCOM.
Note 12: If a continuous clock is used with data changing on the rising
edge of SCK, setup and hold time (t1, t2) will limit the maximum clock
frequency. If data changes on the falling edge of SCK then the setup time
will limit the maximum clock frequency to 8MHz (continuous 50% duty
cycle clock).
Note 13: SDO propagation delay and SDI setup time (t8, t1) limit the
maximum clock frequency for daisy chaining.
TYPICAL PERFOR A CE CHARACTERISTICS (LTC1588/LTC1589/LTC1592)
Midscale Glitch Impulse
40
USING AN LT1468
30 CFEEDBACK = 30pF
VREF = 10V
20
10
0
1nV-s TYPICAL
– 10
– 20
– 30
– 40
0
0.2
0.4
0.6
0.8 1.0
TIME (µs)
1588992 G03
Supply Current vs Input Voltage
5
VCC = 5V
ALL DIGITAL INPUTS
TIED TOGETHER
4
3
2
1
0
0
1
2
3
4
5
INPUT VOLTAGE (V)
1588992 G09
Logic Threshold vs Supply Voltage
3.0
2.5
2.0
1.5
1.0
0.5
0
01234567
SUPPLY VOLTAGE (V)
1588992 G10
4
1588992fa
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