English
Language : 

DAC8805 Datasheet, PDF (3/25 Pages) Burr-Brown (TI) – 14-Bit, Dual, Parallel Input, Multiplying Digital-to-Analog Converter
DAC8805
www.ti.com
SBAS391A – DECEMBER 2006 – REVISED MAY 2007
ELECTRICAL CHARACTERISTICS
All specifications at TA = –40°C to +125°C, VDD = +2.7V to +5.5V, IOUT = virtual GND, GND = 0V, and VREF = 10V, unless otherwise noted.
DAC8805
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
STATIC PERFORMANCE
Resolution
14
Bits
Relative accuracy
INL
±0.5
±1
LSB
Differential nonlinearity
DNL
±0.5
±1
LSB
Output leakage current
Output leakage current
Data = 0000h, TA = +25°C
Data = 0000h, Full temperature range
10
nA
20
nA
Full-scale gain error
Unipolar, data = 3FFFh
Bipolar, data = 3FFFh
±1
±4
mV
±1
±4
mV
Full-scale temperature coefficient
±1
±2
ppm/°C
Bipolar zero error
TA = +25°C
Full temperature range
±1
±3
mV
±1
±3
mV
Power-supply rejection ratio
OUTPUT CHARACTERISTICS(1)
PSRR VDD = 5V ±10%
±0.1
±0.5
LSB/V
Output current
2
mA
Output capacitance
Code dependent
50
pF
REFERENCE INPUT
Reference voltage range
Input resistance (unipolar)
Input capacitance
VREF
RREF
–18
18
V
4
5
6
kΩ
5
pF
R1, R2
Feedback and offset resistance
LOGIC INPUTS AND OUTPUT(1)
ROFS, RFB
4
5
6
kΩ
8
10
12
kΩ
Input low voltage
Input high voltage
Input leakage current
Input capacitance
POWER REQUIREMENTS
VIL VDD = +2.7V
VIL VDD = +5V
VIH VDD = +2.7V
VIH VDD = +5V
IIL
CIL
0.6
V
0.8
V
2.1
V
2.4
V
0.001
1
µA
8
pF
Supply voltage
Supply current
VDD = +4.5V to +5.5V
VDD = +2.7V to +3.6V
AC CHARACTERISTICS(1)(2)
VDD
IDD Normal operation, logic inputs = 0V
VIH = VDD and VIL = GND
VIH = VDD and VIL = GND
2.7
5.5
V
3
6
µA
3
6
µA
1
3
µA
Output current settling time
tS
To 0.1% of full-scale,
Data = 0000h to 3FFFh to 0000h
0.3
µs
tS
To 0.006% of full-scale,
Data = 0000h to 3FFFh to 0000h
0.5
µs
Reference multiplying BW
BW – 3dB VREF = 5VPP, Data = 3FFFh, 2-quadrant mode
10
DAC glitch impulse
VREF = 0V to 10V,
Data = 1FFFh to 2000h to 1FFFh
5
MHz
nV–s
Feedthrough error
VOUT/VREF
Data = 0000h, VREF = 100kHz, ±10VPP,
2-quadrant mode
–70
dB
Crosstalk error
Digital feedthrough
VOUTA/VREFB Data = 0000h, VREFB = 100mVRMS, f = 100kHz
LDAC = Logic low, VREF = –10V to + 10V
Any code change
–100
1
dB
nV–s
Total harmonic distortion
Output noise density
THD VREF = 6VRMS, Data = 3FFFh, f = 1kHz
eN f = 1kHz, BW = 1Hz, 2-quadrant mode
–105
12
dB
nV/√Hz
(1) Specified by design and characterization; not production tested.
(2) All ac characteristic tests are performed in a closed-loop system using a THS4011 I-to-V converter amplifier.
Submit Documentation Feedback
3