Linear Technology LTC2634-HZ12: 12-Bit Vout Quad DAC , (Req DC590) DC1488A-C DC1488A-C 数据表
产品代码
DC1488A-C
LTC2634
2634fc
electrical characteristics
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
OUT
unloaded unless otherwise specified.
LTC2634-LMI12/-LMI10/-LMI8/-LMX12/-LMX10/-LMX8/-LZ12/-LZ10/-LZ8 (V
FS
= 2.5V)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Reference Input
V
V
REF
Input Voltage Range
l
1
V
CC
V
Resistance
l
120
160
200
kΩ
Capacitance
14
pF
I
REF
Reference Current, Power-Down Mode
DAC Powered Down
l
0.005
1.5
µA
Reference Output
Output Voltage
l
1.24
1.25
1.26
V
Reference Temperature Coefficient
±10
ppm/°C
Output Impedance
0.5
kΩ
Capacitive Load Driving
10
µF
Short-Circuit Current
V
CC
= 5.5V, REF Shorted to GND
2.5
mA
Digital I/O
V
V
IH
Digital Input High Voltage
V
CC
= 3.6V to 5.5V
V
CC
= 2.7V to 3.6V
l
l
2.4
2.0
V
V
V
IL
Digital Input Low Voltage
V
CC
= 4.5V to 5.5V
V
CC
= 2.7V to 4.5V
l
l
0.8
0.6
V
V
V
OH
Digital Output High Voltage
Load Current = –100µA
l
V
CC
– 0.4
V
V
OL
Digital Output Low Voltage
Load Current = 100µA
l
0.4
V
I
LK
Digital Input Leakage
V
IN
= GND to V
CC
l
±1
µA
C
IN
Digital Input Capacitance
(Note 8)
l
2.5
pF
AC Performance
t
t
S
Settling Time
V
CC
= 3V (Note 9)
±0.39% (±1LSB at 8 Bits)
±0.098% (±1LSB at 10 Bits)
±0.024% (±1LSB at 12 Bits)
3.3
3.8
4.2
µs
µs
µs
Voltage Output Slew Rate
1.0
V/µs
Capacitive Load Driving
500
pF
Glitch Impulse
At Mid-Scale Transition
2.1
nV•s
DAC-to-DAC Crosstalk
1 DAC Held at FS, 1 DAC Switch 0 – FS
2.1
nV•s
Multiplying Bandwidth
External Reference
320
kHz
e
n
Output Voltage Noise Density
At f = 1kHz, External Reference
At f = 10kHz, External Reference
At f = 1kHz, Internal Reference
At f = 10kHz, Internal Reference
180
160
200
180
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
Output Voltage Noise
0.1Hz to 10Hz, External Reference
0.1Hz to 10Hz, Internal Reference
0.1Hz to 200kHz, External Reference
0.1Hz to 200kHz, Internal Reference
C
REF
= 0.1µF
35
40
680
730
µV
P-P
µV
P-P
µV
P-P
µV
P-P