Datasheet

REV. B
–2–
DAC8043A–SPECIFICATIONS
Parameter Symbol Condition E Grade F Grade Unit
STATIC PERFORMANCE
Resolution N 12 12 Bits
Relative Accuracy INL ±0.5 ±1.0 LSB max
Differential Nonlinearity DNL All Grades Monotonic to 12 Bits ±0.5 ±1.0 LSB max
Gain Error
1
G
FSE
T
A
= 25°C, Data = FFF
H
±1.0 ±2.0 LSB max
T
A
= –40°C, +85°C, Data = FFF
H
±2.0 ±2.0 LSB max
Gain Tempco
2
TCG
FS
I
OUT
Pin Measured ±5 ± 5 ppm/°C max
Output Leakage Current I
LKG
Data = 000
H
, I
OUT
Pin Measured ±5 ± 5 nA max
T
A
= –40°C, +85°C, Data = 000
H
, I
OUT
Pin Measured ±25 ±25 nA max
Zero-Scale Error
3
I
ZSE
Data = 000
H
0.03 0.03 LSB max
T
A
= –40°C, +85°C, Data = 000
H
0.15 0.15 LSB max
REFERENCE INPUT
Input Resistance R
REF
Absolute Tempco < 50 ppm/°C 7/15 7/15 kΩ min/max
Input Capacitance
2
C
REF
55pF typ
ANALOG OUTPUT
Output Capacitance
2
C
OUT
Data = 000
H
25 25 pF typ
Data = FFF
H
30 30 pF typ
DIGITAL INPUTS
Digital Input Low V
IL
0.8 0.8 V max
Digital Input High V
IH
2.4 2.4 V min
Input Leakage Current I
IL
V
LOGIC
= 0 V to 5 V 0.001/±1 0.001/±1 µA typ/max
Input Capacitance
2
C
IL
V
LOGIC
= 0 V 10 10 pF max
INTERFACE TIMING
2, 4
Data Setup t
DS
10 10 ns min
Data Hold t
DH
55ns min
Clock Width High t
CH
25 25 ns min
Clock Width Low t
CL
25 25 ns min
Load Pulsewidth t
LD
25 25 ns min
LSB CLK to LD DAC t
ASB
00ns min
AC CHARACTERISTICS
1, 2
Output Current Settling Time t
S
To ±0.01% of Full Scale, Ext Op Amp OP42 1 1 µs max
DAC Glitch Q Data = 000
H
to FFF
H
to 000
H
, V
REF
= 0 V 20 20 nVs max
Feedthrough (V
OUT
/V
REF
)FT V
REF
= 20 V p-p, Data = 000
H
, f = 10 kHz 1 1 mV p-p
Total Harmonic Distortion THD V
REF
= 6 V rms, Data = FFF
H
, f = 1 kHz –85 –85 dB typ
Output Noise Density
5
e
n
10 Hz to 100 kHz Between R
FB
and I
OUT
17 17 nV/√Hz max
Multiplying Bandwidth BW –3 dB, V
OUT
/V
REF
, V
REF
= 100 mV rms, Data = FFF
H
2.4 2.4 MHz typ
SUPPLY CHARACTERISTICS
Power Supply Range V
DD RANGE
4.5/5.5 4.5/5.5 V min/max
Positive Supply Current I
DD
V
LOGIC
= 0 V or V
DD
10 10 µA max
Power Dissipation P
DISS
V
LOGIC
= 0 V or V
DD
50 50 µW max
Power Supply Sensitivity PSS ∆V
DD
= ±5% 0.002 0.002 %/% max
NOTES
1
Using internal feedback resistor R
FB
, see Figure 19 test circuit with V
REF
= 10 V.
2
These parameters are guaranteed by design and not subject to production testing.
3
Calculated from worst case R
REF
: I
ZSE
(LSB) = (R
REF
× I
LKG
× 4096)/V
REF
.
4
All input control signals are specified with t
R
= t
F
= 2 ns (10% to 90% of 5 V) and timed from a voltage level of 1.6 V.
5
Calculation from e
n
= √4KTRB where: K = Boltzmann Constant (J/°K), R = Resistance (Ω), T = Resistor Temperature (°K), B = 1 Hz Bandwidth.
Specifications subject to change without notice.
ELECTRICAL CHARACTERISTICS
(@ V
DD
= 5 V, V
REF
= 10 V, –40ⴗC < T
A
< +85ⴗC, unless otherwise noted.)