HI5660_14 Datasheet, PDF (9/9 Pages) Intersil Corporation – 8-Bit, 125/60MSPS, High Speed D/A Converte

HI5660
Pin Descriptions
PIN NO.
PIN NAME
PIN DESCRIPTION
1-8
9-14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
D7 (MSB) Through Digital Data Bit 7 (Most Significant Bit) through Digital Data Bit 0, (Least Significant Bit).
D0 (LSB)
DCOM
Connect to digital ground.
SLEEP
Control Pin for Power-Down mode. Sleep Mode is active high; Connect to ground for Normal Mode. Sleep
pin has internal 20µA active pulldown current.
REFLO
Connect to analog ground to enable internal 1.2V reference or connect to AV_DD to disable internal
reference.
REFIO
Reference voltage input if internal reference is disabled. Reference voltage output if internal reference is
enabled. Use 0.1µF cap to ground when internal reference is enabled.
FSADJ
COMP1
ACOM
Full Scale Current Adjust. Use a resistor to ground to adjust full scale output current. Full Scale Output
Current = 32 x V_FSADJ/R_SET.
For use in reducing bandwidth/noise. Recommended: connect 0.1µF to AV_DD.
Analog Ground.
IOUTB
The complimentary current output of the device. Full scale output current is achieved when all input bits
are set to binary 0.
IOUTA
Current output of the device. Full scale output current is achieved when all input bits are set to binary 1.
NC
Internally connected to ACOM via a resistor. Recommend leave disconnected. Adding a capacitor to
ACOM for upward compatibility is valid. Grounding to ACOM is valid. (For upward compatibility to 12-bit
and 14-bit devices, pin 23 needs the ability to have a 0.1µF capacitor to ACOM.)
AV_DD
NC
Analog Supply (+3V to +5V).
No Connect (for upward compatibility to 12 and 14b, pin 25 needs to be grounded to ACOM).
DCOM
Digital Ground.
DV_DD
CLK
Digital Supply (+3V to +5V).
Input for clock. Positive edge of clock latches data.
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