Linear Technology LTC2634-HZ12: 12-Bit Vout Quad DAC , (Req DC590) DC1488A-C DC1488A-C 数据表

产品代码
DC1488A-C
下载
页码 30
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
REF
Input Voltage Range
l
1
V
CC
 
V
Resistance
l
120
160
200
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
Capacitive Load Driving
10
µF
Short-Circuit Current
V
CC
 = 5.5V, REF Shorted to GND
2.5
mA
Digital I/O
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
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
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
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