OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LTC1458IG#TRPBF

P1-P3P4-P6P7-P9P10-P12
1
LTC1458/LTC1458L
Quad 12-Bit Rail-to-Rail
Micropower DACs
Daisy-Chained Control Outputs
The LTC
®
1458/LTC1458L are complete single supply,
quad rail-to-rail voltage output, 12-bit digital-to-analog
converters (DACs) in SO-28 and SSOP-28 packages. They
include an output buffer amplifier with variable gain (×1 or
×2) and an easy-to-use 3-wire cascadable serial interface.
The LTC1458 has an onboard reference of 2.048V and a
full-scale output of 4.095V in a ×2 gain configuration. It
operates from a single 4.5V to 5.5V supply dissipating
only 5.5mW (I
CC
= 1.1mA typ).
The LTC1458L has an onboard 1.22V reference and a full-
scale output of 2.5V in a ×2 gain configuration. It operates
from a single supply of 2.7V to 5.5V dissipating 2.4mW.
Excellent DNL, low supply current and a wide range of
built-in functions allow these parts to be used in a host of
applications when flexibility, power and single supply
operation are important.
■
Quad 12-Bit DAC
■
Buffered True Rail-to-Rail Voltage Output
■
Maximum DNL Error: 0.5LSB
■
5V Operation, I
CC
: 1.1mA Typ (LTC1458)
■
3V Operation, I
CC
: 800µA Typ (LTC1458L)
■
Internal or External Reference Operation
■
Settling Time: 14µs to ±0.5LSB
■
Schmitt Trigger On Clock Input Allows Direct
Optocoupler Interface
■
Power-On Reset and CLR Pin
■
SSOP-28 Package
■
3-Wire Cascadable Serial Interface with 250kHz
Update Rate
■
Low Cost
Functional Block Diagram: Quad 12-Bit Rail-to-Rail DAC
Differential Nonlinearity
vs Input Code
■
Digital Calibration
■
Industrial Process Control
■
Automatic Test Equipment
■
Low Power Systems
1458 BD01
48-BIT
SHIFT REGISTER
AND
DAC REGISTER
CLK
D
IN
5V (LTC1458)
3V TO 5V (LTC1458L)
2.048V (LTC1458)
1.22V (LTC1458L)
REFHI C
REFOUT
V
OUT C
V
CC
REFLO C
X1/X2 C
X1/X2 D
X1/X2 A
X1/X2 B
REFHI D
V
OUT D
REFLO D
REFHI B
FROM µP
V
OUT B
REFLO B
REFHI A
V
OUT A
REFLO A
D
OUT
CS/LD
CLR
DAC D
DAC C
DAC B
DAC A
CODE
0
DNL (LSB)
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
1024
2048
2560
1458 G09
512 1536
3072
3584
4095
DESCRIPTIO
U
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
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
UU
W
3
LTC1458/LTC1458L
ELECTRICAL CHARACTERISTICS
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.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference Input Capacitance 15 pF
Short-Circuit Current REFOUT Shorted to GND ● 45 120 mA
Power Supply
V
CC
Positive Supply Voltage For Specified Performance, LTC1458 ● 4.5 5.5 V
LTC1458L ● 2.7 5.5 V
I
CC
Supply Current 4.5V ≤ V
CC
≤ 5.5V (Note 5) , LTC1458 ● 1100 2400 µA
2.7V ≤ V
CC
≤ 5.5V (Note 5), LTC1458L ● 800 2000 µA
Op Amp DC Performance
Short-Circuit Current Low V
OUT
Shorted to GND ● 60 120 mA
Short-Circuit Current High V
OUT
Shorted to V
CC
● 70 120 mA
Output Impedance to GND Input Code = 0 ● 40 160 Ω
AC Performance
Voltage Output Slew Rate (Note 3) ● 0.5 1.0 V/µs
Voltage Output Settling Time (Notes 3, 4) to ±0.5LSB 14 µs
Digital Feedthrough 0.3 nV• s
AC Feedthrough REFHI = 1kHz, 2V
P-P
, (Code: All 0s) –95 dB
SINAD Signal-to-Noise + Distortion REFHI = 1kHz, 2V
P-P
, (Code: All 1s) 85 dB
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
= 5V (LTC1458), 3V (LTC1458L), unless otherwise noted.
LTC1458 LTC1458L
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Digital I/O
V
IH
Digital Input High Voltage ● 2.4 2.0 V
V
IL
Digital Input Low Voltage ● 0.8 0.6 V
V
OH
Digital Output High Voltage I
OUT
= –1mA ● V
CC
– 1.0 V
CC
– 0.7 V
V
OL
Digital Output Low Voltage I
OUT
= 1mA ● 0.4 0.4 V
I
LEAK
Digital Input Leakage V
IN
= GND to V
CC
● ±10 ±10 µA
C
IN
Digital Input Capacitance Guaranteed by Design, ● 10 10 pF
Not Subject to Test
Switching
t
1
D
IN
Valid to CLK Setup ● 40 60 ns
t
2
D
IN
Valid to CLK Hold ● 00ns
t
3
CLK High Time ● 40 60 ns
t
4
CLK Low Time ● 40 60 ns
t
5
CS/LD Pulse Width ● 50 80 ns
t
6
LSB CLK to CS/LD ● 40 60 ns
t
7
CS/LD Low to CLK ● 20 30 ns
t
8
D
OUT
Output Delay C
LOAD
= 15pF ● 150 220 ns
t
9
CLK Low to CS/LD Low ● 20 30 ns
P1-P3P4-P6P7-P9P10-P12

LTC1458IG#TRPBF

Mfr. #:
Buy LTC1458IG#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC L/P,Single 5V,Quad 12-Bit Vout DAC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet