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| DAC8811ICDGKT Datasheet, PDF (4/21 Pages) Texas Instruments – 16-Bit, Serial Input Multiplying Digital-to-Analog Converter | |||
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DAC8811
SLAS411B 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
Digital feedthrough
Total harmonic distortion
Output spot noise voltage
CONDITIONS
CS = 1 and fCLK = 1 MHz
VREF = 5 VPP, Data = FFFFh, f = 1 kHz
f = 1 kHz, BW = 1 Hz
DAC8811
MIN TYP MAX
2
â105
12
UNITS
nV/s
dB
nV/âHz
PIN ASSIGNMENTS
DRB PACKAGE
(TOP VIEW)
CLK 1
8 CS
SDI 2
RFB 3
VREF 4
7 VDD
6 GND
5 IOUT
CLK
SDI
RFB
VREF
DGK PACKAGE
(TOP VIEW)
1
8
2
7
3
6
4
5
CS
VDD
GND
IOUT
Table 1. 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/V op amp.
6
GND Analog and digital ground.
7
VDD Positive power supply input. Specified operating range of 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 2 for
operation.
4
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