LTC1668IG 查看數據表（PDF） - Linear Technology

零件编号

产品描述 (功能)

生产厂家

LTC1668IG

12-Bit, 14-Bit, 16-Bit, 50Msps DACs

Linear Technology 

LTC1666/LTC1667/LTC1668

TYPICAL PERFOR A CE CHARACTERISTICS (LTC1668)

Differential Nonlinearity

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

0

16384 32768 49152

DIGITAL INPUT CODE

65535

1666/7/8 G19

PI FU CTIO S

LTC1666

REFOUT (Pin 15): Internal Reference Voltage Output.

Nominal value is 2.5V. Requires a 0.1µF bypass capacitor

to AGND.

IREFIN (Pin 16): Reference Input Current. Nominal value is

1.25mA for IFS = 10mA. IFS = IREFIN • 8.

AGND (Pin 17): Analog Ground.

LADCOM (Pin 18): Attenuator Ladder Common. Normally

tied to GND.

IOUT B (Pin 19): Complementary DAC Output Current. Full-

scale output current occurs when all data bits are 0s.

IOUT 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 VSS with 0.1µF.

COMP2 (Pin 22): Internal Bypass Point. Bypass to VSS

with 0.1µF.

VSS (Pin 23): Negative Supply Voltage. Nominal value is

– 5V.

DGND (Pin 24): Digital Ground.

VDD (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.

DB11 to DB0 (Pins 27, 28, 1 to 10 ): Digital Input Data Bits.

7

Share Link: