Datasheet

2
LTC1458/LTC1458L
(Note 1)
V
CC
to GND .............................................. –0.5V to 7.5V
Logic Inputs to GND ................................ –0.5V to 7.5V
V
OUT A
, V
OUT B
, V
OUT C
, V
OUT D
,
X1/X2 A, X1/X2 B, X1/X2 C,
X1/X2 D ......................................... –0.5V to V
CC
+ 0.5V
REFHI A, REFHI B, REFHI C, REFHI D,
REFLO A, REFLO B, REFLO C,
REFLO D ........................................ –0.5V to V
CC
+ 0.5V
Maximum Junction Temperature ......................... 125°C
Operating Temperature Range
LTC1458C/LTC1458LC ............................ 0°C to 70°C
LTC1458I/LTC1458LI ........................ –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
ORDER PART
NUMBER
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= T
MIN
to T
MAX
. V
CC
= 4.5V to 5.5V (LTC1458), 2.7V to 5.5V (LTC1458L),
X1/X2 = REFLO = GND, REFHI = REFOUT, V
OUT
unloaded, unless otherwise noted.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
G PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
CC
X1/X2 B
V
OUT B
CLR
REFHI B
GND
REFLO B
REFLO A
REFHI A
REFOUT
NC
V
OUT A
X1/X2 A
V
CC
X1/X2 C
V
OUT C
CS/LD
D
IN
REFHI C
GND
REFLO C
REFLO D
REFHI D
D
OUT
CLK
NC
V
OUT D
X1/X2 D
SW PACKAGE
28-LEAD PLASTIC SO
T
JMAX
= 125°C, θ
JA
= 100°C/W (G)
T
JMAX
= 125°C, θ
JA
= 150°C/W (SW)
LTC1458CG
LTC1458CSW
LTC1458LCG
LTC1458LCSW
LTC1458IG
LTC1458ISW
LTC1458LIG
LTC1458LISW
Consult factory for Military grade parts.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DAC
Resolution ● 12 Bits
DNL Differential Nonlinearity Guaranteed Monotonic (Note 2) ● ±0.5 LSB
INL Integral Nonlinearity T
A
= 25°C ±1.75 ±4.0 LSB
(Note 2) ● ±2.25 ±4.5 LSB
V
OS
Offset Error T
A
= 25°C ±3.0 ±12 mV
● ±6.0 ±18 mV
V
OS
TC Offset Error Temperature ±15 µV/°C
Coefficient
V
FS
Full-Scale Voltage When Using Internal Reference, LTC1458, T
A
= 25°C 4.065 4.095 4.125 V
LTC1458 ● 4.045 4.095 4.145 V
When Using Internal Reference, LTC1458L, T
A
= 25°C 2.470 2.500 2.530 V
LTC1458L ● 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 LTC1458 ● 2.008 2.048 2.088 V
LTC1458L ● 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, LTC1458 ● 0.2 1.5 LSB
LTC1458L ● 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
ELECTRICAL CHARACTERISTICS
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
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