DAC8822_07 Datasheet, PDF (3/24 Pages) Burr-Brown (TI) – 16-Bit, Dual, Parallel Input, Multiplying Digital-to-Analog Converter

DAC8822
www.ti.com
SBAS390A – DECEMBER 2006 – REVISED MARCH 2007
ELECTRICAL CHARACTERISTICS
All specifications at T_A = –40°C to +125°C, V_DD = +2.7V to +5.5V, I_OUT = virtual GND, GND = 0V, and V_REF = 10V, unless otherwise noted.
DAC8822
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
STATIC PERFORMANCE
Resolution
16
Bits
Relative accuracy
DAC8822QB
INL
DAC8822QC
±2
LSB
±1
LSB
Differential nonlinearity
DNL
±0.5
±1
LSB
Output leakage current
Output leakage current
Data = 0000h, T_A = +25°C
Data = 0000h, Full temperature range
10
nA
20
nA
Full-scale gain error
Unipolar, data = FFFFh
Bipolar, data = FFFFh
±1
±4
mV
±1
±4
mV
Full-scale temperature coefficient
±1
±2
ppm/°C
Bipolar zero error
T_A = +25°C
Full temperature range
±1
±3
mV
±1
±3
mV
Power-supply rejection ratio
OUTPUT CHARACTERISTICS⁽¹⁾
PSRR V_DD = 5V ±10%
±0.2
±1.0
LSB/V
Output current
2
mA
Output capacitance
Code dependent
50
pF
REFERENCE INPUT
Reference voltage range
Input resistance (unipolar)
Input capacitance
V_REF
R_REF
–18
18
V
4
5
6
kΩ
5
pF
R₁, R₂
Feedback and offset resistance
LOGIC INPUTS AND OUTPUT⁽¹⁾
R_OFS, R_FB
4
5
6
kΩ
8
10
12
kΩ
Input low voltage
Input high voltage
Input leakage current
Input capacitance
POWER REQUIREMENTS
V_IL V_DD = +2.7V
V_IL V_DD = +5V
V_IH V_DD = +2.7V
V_IH V_DD = +5V
I_IL
C_IL
0.6
V
0.8
V
2.1
V
2.4
V
0.001
1
µA
8
pF
Supply voltage
V_DD
Normal operation, logic inputs = 0V
2.7
5.5
V
3
6
µA
Supply current
AC CHARACTERISTICS⁽¹⁾⁽²⁾
I_DD V_DD = +4.5V to +5.5V, V_IH = V_DD and V_IL = GND
V_DD = +2.7V to +3.6V, V_IH = V_DD and V_IL = GND
3
6
µA
1
3
µA
Output current settling time
t_S
To 0.0015% of full-scale,
data = 0000h to FFFFh to 0000h
0.5
µs
Reference multiplying BW
BW – 3dB V_REF = 5V_PP, data = FFFFh, 2-quadrant mode
10
DAC glitch impulse
V_REF = 0V to 10V,
data = 7FFFh to 8000h to 7FFFh
5
MHz
nV–s
Feedthrough error
V_OUT/V_REF
Data = 0000h, V_REF = 100kHz, ±10V_PP,
2-quadrant mode
–70
dB
Crosstalk error
Digital feedthrough
V_OUTA/V_REFB Data = 0000h, V_REFB = 100mV_RMS, f = 100kHz
LDAC = logic low, V_REF = –10V to + 10V
Any code change
–100
1
dB
nV–s
Total harmonic distortion
Output noise density
THD V_REF = 6V_RMS, data = FFFFh, f = 1kHz
e_N 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.
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