參數(shù)資料
型號(hào): LTC1667IG
廠商: LINEAR TECHNOLOGY CORP
元件分類: DAC
英文描述: 12-Bit, 14-Bit, 16-Bit, 50Msps DACs
中文描述: PARALLEL, WORD INPUT LOADING, 0.02 us SETTLING TIME, 14-BIT DAC, PDSO28
封裝: 5.30 MM, PLASTIC, SSOP-28
文件頁數(shù): 8/24頁
文件大?。?/td> 888K
代理商: LTC1667IG
8
LTC1666/LTC1667/LTC1668
LTC1667
REFOUT (Pin 15):
Internal Reference Voltage Output.
Nominal value is 2.5V. Requires a 0.1
μ
F bypass capacitor
to AGND.
I
REFIN
(Pin 16):
Reference Input Current. Nominal value is
1.25mA for I
FS
= 10mA. I
FS
= I
REFIN
8.
AGND (Pin 17):
Analog Ground.
LADCOM (Pin 18):
Attenuator Ladder Common. Normally
tied to GND.
I
OUT B
(Pin 19):
Complementary DAC Output Current. Full-
scale output current occurs when all data bits are 0s.
I
OUT A
(Pin 20):
DAC Output Current. Full-scale output
current occurs when all data bits are 1s.
COMP1 (Pin 21):
Current Source Control Amplifier Com-
pensation. Bypass to V
SS
with 0.1
μ
F.
COMP2 (Pin 22):
Internal Bypass Point. Bypass to V
SS
with 0.1
μ
F.
V
SS
(Pin 23):
Negative Supply Voltage. Nominal value is
–5V.
DGND (Pin 24):
Digital Ground.
V
DD
(Pin 25):
Positive Supply Voltage. Nominal value is 5V.
CLK (Pin 26):
Clock Input. Data is latched and the output
is updated on positive edge of clock.
DB13 to DB0 (Pins 27, 28, 1 to 12 ):
Digital Input Data Bits.
LTC1668
REFOUT (Pin 15):
Internal Reference Voltage Output.
Nominal value is 2.5V. Requires a 0.1
μ
F bypass capacitor
to AGND.
I
REFIN
(Pin 16):
Reference Input Current. Nominal value is
1.25mA for I
FS
= 10mA. I
FS
= I
REFIN
8.
AGND (Pin 17):
Analog Ground.
LADCOM (Pin 18):
Attenuator Ladder Common. Normally
tied to GND.
I
OUT B
(Pin 19):
Complementary DAC Output Current. Full-
scale output current occurs when all data bits are 0s.
I
OUT A
(Pin 20):
DAC Output Current. Full-scale output
current occurs when all data bits are 1s.
COMP1 (Pin 21):
Current Source Control Amplifier Com-
pensation. Bypass to V
SS
with 0.1
μ
F.
COMP2 (Pin 22):
Internal Bypass Point. Bypass to V
SS
with 0.1
μ
F.
V
SS
(Pin 23):
Negative Supply Voltage. Nominal value is
–5V.
DGND (Pin 24):
Digital Ground.
V
DD
(Pin 25):
Positive Supply Voltage. Nominal value is 5V.
CLK (Pin 26):
Clock Input. Data is latched and the output
is updated on positive edge of clock.
DB15 to DB0 (Pins 27, 28, 1 to 14 ):
Digital Input Data Bits.
PIU
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