2
LTC7545A
WU
U
PACKAGE
/
O
RDER I FOR ATIO
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
V
DD
to AGND ............................................ –0.5V to 17V
V
DD
to DGND .............................................–0.5V to 17V
AGND to DGND.............................. –0.5V to V
DD
+ 0.5V
DGND to AGND.............................. –0.5V to V
DD
+ 0.5V
V
REF
to AGND,DGND ............................................. ±25V
R
FB
to AGND,DGND ............................................. . ±25V
Digital Inputs to DGND ................. –0.5V to V
DD
+ 0.5V
V
OUT1
to AGND, DGND ................. –0.5V to V
DD
+ 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
LTC7545ABG
LTC7545ABN
LTC7545ABSW
LTC7545ACG
LTC7545ACN
LTC7545ACSW
LTC7545AKG
LTC7545AKN
LTC7545AKSW
LTC7545ALG
LTC7545ALN
LTC7545ALSW
ORDER PART
NUMBER
T
JMAX
= XXX°C, θ
JA
= XXX°C/W (G)
T
JMAX
= 150°C, θ
JA
= 100°C/W (N)
T
JMAX
= 150°C, θ
JA
= 130°C/W (SW)
Consult factory for Military grade parts.
V
DD
= 5V or 15V, V
REF
= 10V, V
OUT1
= AGND = 0V, T
A
= T
MIN
to T
MAX,
unless otherwise noted.
ELECTRICAL CHARACTERISTICS
LTC7545AK/AB LTC7545AL/AC
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Accuracy
Resolution ● 12 12 Bits
INL Integral Nonlinearity (Note 1) T
A
= 25°C ±0.5 ±0.5 LSB
(Relative Accuracy) T
MIN
to T
MAX
● ±0.5 ±0.5 LSB
DNL Differential Nonlinearity Guaranteed Monotonic T
A
= 25°C ±1 ±0.5 LSB
T
MIN
to T
MAX
T
MIN
to T
MAX
● ±1 ±0.5 LSB
GE Gain Error (Note 2) T
A
= 25°C ±2 ±1LSB
T
MIN
to T
MAX
● ±3 ±2LSB
Gain Temperature Coefficient (Note 3) ∆Gain/∆Temperature ● 1 5 1 5 ppm/°C
I
LKG
OUT1 Leakage Current (Note 4) T
A
= 25°C ±10 ±10 nA
T
MIN
to T
MAX
● ±50 ±50 nA
PSRR Power Supply Rejection ● ±0.002 ±0.002 %/%
Reference Input
R
REF
V
REF
Input Resistance (Note 5) ● 8 11 15 8 11 15 kΩ
AC Performance
Output Current Settling Time (Notes 3, 6, 7) ● 11µs
Propagation Delay (Notes 3, 6, 8) ● 150 150 ns
Digital-to-Analog Glitch Impulse (Notes 6, 9) ● 5 5 nV-sec
Multiplying Feedthrough Error V
REF
= ±10V, 10kHz Sine Wave ● 55mV
P-P
Analog Outputs
C
OUT
Output Capacitance (Note 3) DB0 to DB11 = 0V, C
OUT1
● 30 70 30 70 pF
WR, CS = 0V
DB0 to DB11 = V
DD,
C
OUT1
● 60 150 60 150 pF
WR, CS = 0V
OUT1
AGND
DGND
DB11 (MSB)
DB10
DB9
DB8
DB7
DB6
DB5
R
FB
V
REF
V
DD
WR
CS
DB0 (LSB)
DB1
DB2
DB3
DB4
1
2
3
4
5
6
7
8
9
10
TOP VIEW
20
19
18
17
16
15
14
13
12
11
N PACKAGE
20-LEAD PDIP
SW PACKAGE
20-LEAD PLASTIC SO WIDE
G PACKAGE
20-LEAD PLASTIC SSOP