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| DAC8801_16 Datasheet, PDF (4/22 Pages) Texas Instruments – 14-Bit, Serial Input Multiplying Digital-to-Analog Converter | |||
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DAC8801
SLAS403B â NOVEMBER 2004 â REVISED FEBRUARY 2007
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
VDD = 2.7 V to 5.5 V; IOUT = Virtual GND, GND = 0 V; VREF = 10 V; TA = Full Operating Temperature; all specifications -40°C
to 85°C unless otherwise noted.
PARAMETER
Total harmonic distortion
Output spot noise voltage
CONDITIONS
VREF = 5 VPP, Data = 3FFFh, f = 1 kHz
f = 1 kHz, BW = 1 Hz
DAC8801
MIN TYP MAX
â105
12
UNITS
dB
nV/âHz
DRB PACKAGE
(TOP VIEW)
PIN ASSIGNMENTS
DGK PACKAGE
(TOP VIEW)
CLK 1
SDI 2
RFB 3
VREF 4
8 CS
7 VDD
6 GND
5 IOUT
CLK
1
8
SDI
2
7
RFB
3
6
VREF
4
5
CS
VDD
GND
IOUT
TERMINAL FUNCTIONS
PIN NAME
DESCRIPTION
1
CLK Clock input, positive edge triggered clocks data into shift register
2
SDI Serial register input, data loads directly into the shift register MSB first. Extra leading bits are ignored.
3
RFB Internal matching feedback resistor. Connect to external op amp output.
4
VREF DAC reference input pin. Establishes DAC full-scale voltage. Constant input resistance versus code.
5
IOUT DAC current output. Connects to inverting terminal of external precision I to V op amp.
6
GND Analog and digital ground
7
VDD Posiitve power supply input. Specified range of operation 2.7 V to 5.5 V.
8
CS
Chip select, active low digital input. Transfers shift register data to DAC register on rising edge. See Table 1 for
operation.
4
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