Datasheet

2
LTC1454/LTC1454L
ABSOLUTE MAXIMUM RATINGS
W
WW
U
WU
U
PACKAGE
/
O
RDER I FOR ATIO
V
CC
to GND .............................................. –0.5V to 7.5V
Logic Inputs to GND ................................ –0.5V to 7.5V
V
OUT A
, V
OUT B
, X1/X2 A,
X1/X2 B ..................................... –0.5V to V
CC
+ 0.5V
REFHI A, REFHI B, REFLO ............. –0.5V to V
CC
+ 0.5V
Maximum Junction Temperature ..........................125°C
Operating Temperature Range
LTC1454C/LTC1454LC ............................ 0°C to 70°C
LTC1454I/LTC1454LI ........................ –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
LTC1454CN
LTC1454IN
LTC1454CS
LTC1454IS
LTC1454LCN
LTC1454LIN
LTC1454LCS
LTC1454LIS
ORDER PART
NUMBER
T
JMAX
= 125°C, θ
JA
= 100°C/W (N)
T
JMAX
= 125°C, θ
JA
= 150°C/W (S)
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
V
CC
= 4.5V to 5.5V (LTC1454), 2.7V to 5.5V (LTC1454L), X1/X2 = REFLO = GND, REFHI = REFOUT, V
OUT
and REFOUT unloaded,
T
A
= T
MIN
to T
MAX
, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DAC
Resolution ● 12 Bits
DNL Differential Nonlinearity Guaranteed Monotonic (Note 1) ● ± 0.5 LSB
INL Integral Nonlinearity T
A
= 25°C ±2.0 ±4.0 LSB
(Note 1) ● ±2.5 ±4.5 LSB
V
OS
Offset Error T
A
= 25°C ±2.0 ±12 mV
● ±4.0 ±18 mV
V
OS
TC Offset Error Temperature ±15 µV/°C
Coefficient
V
FS
Full-Scale Voltage When Using Internal Reference, LTC1454, T
A
= 25°C 4.065 4.095 4.125 V
LTC1454 ● 4.045 4.095 4.145 V
When Using Internal Reference, LTC1454L, T
A
= 25°C 2.470 2.500 2.530 V
LTC1454L ● 2.460 2.500 2.540 V
V
FS
TC Full-Scale Voltage When Using Internal Reference ± 24 ppm/°C
Temperature Coefficient
Reference
Reference Output Voltage LTC1454 ● 2.008 2.048 2.088 V
LTC1454L ● 1.195 1.220 1.245 V
Reference Output ±20 ppm/°C
Temperature Coefficient
Reference Line Regulation ● 0.7 ±2.0 LSB/V
Reference Load Regulation 0 ≤ I
OUT
≤ 100µA, LTC1454 ● 0.2 1.5 LSB
LTC1454L ● 0.6 3.0 LSB
Reference Input Range V
REFHI
≤ V
CC
– 1.5V V
CC
/2 V
Reference Input Resistance ● 15 24 40 kΩ
Reference Input Capacitance 15 pF
Short-Circuit Current REFOUT Shorted to GND ● 40 120 mA
TOP VIEW
S PACKAGE
16-LEAD PLASTIC SO
N PACKAGE
16-LEAD PDIP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
X1/X2 B
CLR
CLK
D
IN
CS/LD
D
OUT
X1/X2 A
V
OUT A
V
OUT B
V
CC
REFHI B
GND
REFLO
REFHI A
REFOUT
V
CC