參數(shù)資料
型號: LTC1657
廠商: Linear Technology Corporation
英文描述: Parallel 16-Bit Rail-to-Rail Micropower DAC(并行16位,微功耗滿幅度電壓輸出數(shù)模轉(zhuǎn)換器)
中文描述: 并行16位軌至軌微數(shù)模轉(zhuǎn)換器(并行16位,微功耗滿幅度電壓輸出數(shù)模轉(zhuǎn)換器)
文件頁數(shù): 3/12頁
文件大?。?/td> 166K
代理商: LTC1657
3
LTC1657
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 4.5V to 5.5V, V
OUT
unloaded, REFOUT tied to REFHI,
REFLO tied to GND, X1/X2 tied to GND, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
External reference REFHI = 2.2V. V
CC
= 5V.
Note 3:
Nonlinearity is defined from code 128 to code 65535 (full scale).
See Applications Information.
Note 4:
Digital inputs at 0V or V
CC
.
Note 5:
DAC switched between all 1s and all 0s.
Note 6:
Guaranteed by design. Not subject to test.
SYMBOL
AC Performance
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Voltage Output Slew Rate
Voltage Output Settling Time
(Note 5)
(Note 5) to 0.0015% (16-Bit Settling Time)
(Note 5) to 0.012% (13-Bit Settling Time)
G
±
0.3
±
0.7
20
10
0.3
8
250
V/
μ
s
μ
s
μ
s
nVs
nVs
nV/
Hz
Digital Feedthrough
Midscale Glitch Impulse
Output Voltage Noise Spectral Density
DAC Switch Between 8000
H
and 7FFF
H
At 1kHz
Digital I/O
V
IH
V
IL
V
OH
V
OL
I
LEAK
C
IN
Switching Characteristics
t
CS
CS (MSB or LSB) Pulse Width
t
WR
WR Pulse Width
t
CWS
CS to WR Setup
t
CWH
CS to WR Hold
t
DWS
Data Valid to WR Setup
t
DWH
Data Valid to WR Hold
t
LDAC
LDAC Pulse Width
t
CLR
CLR Pulse Width
Reference Output (REFOUT)
Reference Output Voltage
Reference Output
Temperature Coefficient
Reference Line Regulation
Reference Load Regulation
Short-Circuit Current
Reference Input
REFHI, REFLO Input Range
Digital Input High Voltage
Digital Input Low Voltage
Digital Output High Voltage
Digital Output Low Voltage
Digital Input Leakage
Digital Input Capacitance
G
2.4
V
V
V
V
G
0.8
G
V
CC
– 1
G
0.4
±
10
10
V
IN
= GND to V
CC
(Note 6)
G
μ
A
pF
G
40
40
0
0
40
0
40
40
ns
ns
ns
ns
ns
ns
ns
ns
G
G
G
G
G
G
G
G
2.036
2.048
15
2.060
V
ppm/
°
C
V
CC
= 4.5V to 5.5V
Measured at I
OUT
= 100
μ
A
REFOUT Shorted to GND
G
±
1.5
5
100
mV/V
mV/A
mA
G
G
50
(Note 6) See Applications Information
X1/X2 Tied to V
OUT
X1/X2 Tied to GND
G
G
0
0
V
CC
– 1.5
V
CC
/2
V
V
REFHI Input Resistance
G
16
25
k
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