LTC7545 查看數據表（PDF） - Linear Technology
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LTC7545 Datasheet PDF : 8 Pages
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LTC7545A
ABSOLUTE AXI U RATI GS
VDD to AGND ............................................ –0.5V to 17V
VDD to DGND ............................................. –0.5V to 17V
AGND to DGND .............................. – 0.5V to VDD + 0.5V
DGND to AGND .............................. – 0.5V to VDD + 0.5V
VREF to AGND,DGND ............................................. ±25V
RFB to AGND,DGND ............................................. . ±25V
Digital Inputs to DGND ................. – 0.5V to VDD + 0.5V
VOUT1 to AGND, DGND ................. – 0.5V to VDD + 0.5V
Maximum Junction Temperature .......................... 150°C
Operating Temperature Range
Commercial (K, L Versions) .................... 0°C to 70°C
Industrial (B, C Versions)................... –40° C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER I FOR ATIO
OUT1 1
AGND 2
DGND 3
DB11 (MSB) 4
DB10 5
DB9 6
DB8 7
DB7 8
DB6 9
DB5 10
TOP VIEW
20 RFB
19 VREF
18 VDD
17 WR
16 CS
15 DB0 (LSB)
14 DB1
13 DB2
12 DB3
11 DB4
N PACKAGE
SW PACKAGE
20-LEAD PDIP 20-LEAD PLASTIC SO WIDE
TJMAX = 150°C, θJA = 100°C/W (N)
TJMAX = 150°C, θJA = 130°C/W (SW)
Consult factory for Military grade parts.
ORDER PART
NUMBER
LTC7545ABN
LTC7545ABSW
LTC7545ACN
LTC7545ACSW
LTC7545AKN
LTC7545AKSW
LTC7545ALN
LTC7545ALSW
ELECTRICAL CHARACTERISTICS
VDD = 5V or 15V, VREF = 10V, VOUT1 = AGND = 0V, TA = TMIN to TMAX, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LTC7545AK/AB
MIN TYP MAX
Accuracy
Resolution
q 12
INL
Integral Nonlinearity
(Relative Accuracy)
(Note 1)
TA = 25°C
TMIN to TMAX q
DNL
Differential Nonlinearity
Guaranteed Monotonic TA = 25°C
TMIN to TMAX
TMIN to TMAX q
GE
Gain Error
(Note 2)
TA = 25°C
TMIN to TMAX q
Gain Temperature Coefficient (Note 3) ∆Gain/∆Temperature
q
±0.5
±0.5
±1
±1
±2
±3
1
5
ILKG
PSRR
OUT1 Leakage Current
Power Supply Rejection
(Note 4)
TA = 25°C
TMIN to TMAX q
q
±10
±50
±0.002
Reference Input
RREF
VREF Input Resistance
AC Performance
(Note 5)
q8
11 15
Output Current Settling Time (Notes 3, 6, 7)
q
1
Propagation Delay
(Notes 3, 6, 8)
q
150
Digital-to-Analog Glitch Impulse (Notes 6, 9)
q
5
Multiplying Feedthrough Error VREF = ±10V, 10kHz Sine Wave
q
5
Analog Outputs
COUT
Output Capacitance (Note 3)
DB0 to DB11 = 0V, COUT1
q
WR, CS = 0V
30 70
DB0 to DB11 = VDD, COUT1
q
WR, CS = 0V
60 150
LTC7545AL/AC
MIN TYP MAX UNITS
12
Bits
±0.5 LSB
±0.5 LSB
±0.5 LSB
±0.5 LSB
±1
LSB
±2
LSB
1
5 ppm/°C
±10
nA
±50
nA
±0.002 %/%
8
11 15
kΩ
1
µs
150
ns
5
nV-sec
5
mVP-P
30 70
pF
60 150
pF
2
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