LTC2704IGW-14#PBF Linear Technology, LTC2704IGW-14#PBF Datasheet - Page 18

• Manufacturer Part Number: LTC2704IGW-14#PBF
• Description: IC DAC 14BIT QUAD VOUT 44-SSOP
• Manufacturer: Linear Technology

Specifications of LTC2704IGW-14#PBF

• Settling Time: 9µs
• Number Of Bits: 14
• Data Interface: Serial, SPI™
• Number Of Converters: 4
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power Dissipation (max): -

LTC2704
APPLICATIONS INFORMATION
Voltage Output/Feedback and Compensation
The LTC2704 provides separate voltage output and feedback
pins for each DAC. This allows compensation for resistance
between the output and load, or a current boosting stage
such as an LT1970 may be inserted without affecting ac-
curacy. When OUTx is connected directly to RFBx and no
18
AGND UNDER LTC2704
SEPARATED FROM
GND1 TRACE,
ALLOWS GROUNDING TO PROTOTYPE CIRCUITS
EXPOSED GROUND PLANE AROUND EDGE
Figure 3. DC752 Top Layer
AGND UNDER LTC2704
SEPARATED FROM
GND2 TRACE,
2704 F03
additional capacitance is present, the internal frequency
compensation is suffi cient for stability and is optimized
for fast settling time. If a low bandwidth booster stage is
used, then a compensation capacitor from OUTx to C1x
may be required. Similarly, extra compensation may be
required to drive a heavy capacitive load.
Figure 4. DC752 Analog Ground Layer. No Currents Are Returned
to this Plane, so it May Be Used As a Reference Point for Precise
Voltage Measurements
FROM COUPLING INTO ANALOG GROUND PLANE. NOTE
THAT THERE IS A PLANE IN THIS REGION ON LAYER 3
CUTOUT PREVENTS DIGITAL RETURN CURRENTS
2704 F04
2704fc