Datasheet

2
LTC7541A
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
ELECTRICAL CHARACTERISTICS
V
DD
= 15V, V
REF
= 10V, OUT 1 = OUT 2 = GND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.
V
DD
to GND............................................... –0.5V to 17V
V
REF
to GND.......................................................... ±25V
R
FB
to GND ........................................................... ±25V
Digital Inputs to GND.................. –0.5V to (V
DD
+ 0.5V)
OUT 1, OUT 2 to GND .................. –0.5V to (V
DD
+ 0.5V)
Power Dissipation............................................. 450mW
(Derate 6mW/°C Above 75°C)
Maximum Junction Temperature ......... –65°C to 125°C
Operating Temperature Range
Commercial (J, K Versions).................. 0°C to 70°C
Industrial (B Version) ...................... –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
LTC7541ABN
LTC7541ABSW
LTC7541AJN
LTC7541AKN
LTC7541AJSW
LTC7541AKSW
ORDER PART
NUMBER
Consult factory for Military grade parts.
T
JMAX
= 150°C, θ
JA
= 100°C/ W (N)
T
JMAX
= 150°C, θ
JA
= 130°C/ W (SW)
LTC7541AK/LTC7541AB
1
2
3
4
5
6
7
8
9

TOP VIEW
N PACKAGE
18-LEAD PDIP
SW PACKAGE
18-LEAD PLASTIC SO WIDE
18
17
16
15
14
13
12
11
10

OUT 1
OUT 2
GND
BIT 1 (MSB)
BIT 2
BIT 3
BIT 4
BIT 5
BIT 6


R
FB

V
REF

V
DD

BIT 12 (LSB)
BIT 11
BIT 10
BIT 9
BIT 8
BIT 7
LTC7541AJ
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Accuracy
Resolution ● 12 12 Bits
INL Integral Nonlinearity (Note 1)
● ±1 ±0.5 LSB
(Relative Accuracy)
DNL Differential Nonlinearity Guaranteed Monotonic, T
MIN
to T
MAX
● ±1 ±0.5 LSB
GE Gain Error (Note 2) T
A
= 25°C ±6 ±1 LSB
T
MIN
to T
MAX
● ±8 ±2 LSB
Gain Temperature Coefficient (Note 3) ● 15 15ppm/°C
I
LKG
Output Leakage Current (Note 4) T
A
= 25°C ±5 ±5nA
T
MIN
to T
MAX
● ±10 ±10 nA
PSRR Power Supply Rejection V
DD
= 15V ±5% ● ±0.002 ±0.002 %/%
Reference Input
R
REF
V
REF
Input Resistance ● 7 11 15 7 11 15 kΩ
V
REF
Input Resistance –100 –100 ppm/°C
Temperature Coefficient