Datasheet

Data Sheet AD5641
Rev. D | Page 3 of 20
SPECIFICATIONS
V
DD
= 2.7 V to 5.5 V; R
L
= 2 kΩ to GND; C
L
= 200 pF to GND; −40°C < T
A
< +125°C; typical at +25°C; all specifications T
MIN
to T
MAX
,
unless otherwise noted.
Table 2.
A Grade B Grade
Parameter Min Typ Max Min Typ Max Unit Test Conditions/Comments
STATIC PERFORMANCE
Resolution 14 14 Bits
Relative Accuracy
1
±16 ±4 LSB
Differential Nonlinearity
1
±1 ±1 LSB Guaranteed monotonic by design
Zero-Code Error 0.5 10 0.5 10 mV All 0s loaded to DAC register
Offset Error ±0.63 ±10 ±0.63 ±10 mV
Full-Scale Error ±0.5 ±0.5 mV All 1s loaded to DAC register
Gain Error ±0.004 ±0.037 ±0.004 ±0.037 % of FSR
Zero-Code Error Drift 5.0 5.0 µV/°C
Gain Temperature Coefficient 2.0 2.0 ppm of
FSR/°C
OUTPUT CHARACTERISTICS
2
Output Voltage Range 0 V
DD
0 V
DD
V
Output Voltage Settling Time 6 10 6 10 µs Code ¼ scale to ¾ scale, to ±1 LSB
Slew Rate 0.5 0.5 V/µs
Capacitive Load Stability 470 470 pF R
L
= ∞
1000 1000 pF RL = 2 kΩ
Output Noise Spectral Density 120 120
nV/√Hz
DAC code = midscale, 1 kHz
Noise 2 2 µV DAC code = midscale, 0.1 Hz to
10 Hz bandwidth
Digital-to-Analog Glitch
Impulse
5 5 nV-s 1 LSB change around major carry
Digital Feedthrough 0.2 0.2 nV-s
DC Output Impedance 0.5 0.5 Ω
Short-Circuit Current 15 15 mA V
DD
= 3 V/5 V
LOGIC INPUTS
Input Current
3
±2 ±2 µA
V
INL
, Input Low Voltage 0.8 0.8 V V
DD
= 4.5 V to 5.5 V
0.6 0.6 V V
DD
= 2.7 V to 3.6 V
V
INH
, Input High Voltage 1.8 1.8 V V
DD
= 4.5 V to 5.5 V
1.4 1.4 V V
DD
= 2.7 V to 3.6 V
Pin Capacitance 3 3 pF
POWER REQUIREMENTS
V
DD
2.7 5.5 2.7 5.5 V All digital inputs at 0 V or V
DD
I
DD
(Normal Mode)
DAC active and excluding load current
V
DD
= 4.5 V to 5.5 V 75 100 75 100 µA V
IH
= V
DD
and V
IL
= GND
V
DD
= 2.7 V to 3.6 V 60 90 60 90 µA V
IH
= V
DD
and V
IL
= GND
I
DD
(All Power-Down Modes)
V
DD
= 4.5 V to 5.5 V 0.5 0.5 µA V
IH
= V
DD
and V
IL
= GND
V
DD
= 2.7 V to 3.6 V
0.2
0.2
µA
V
IH
= V
DD
and V
IL
= GND
POWER EFFICIENCY
I
OUT
/I
DD
96 96 % I
LOAD
= 2 mA and V
DD
= ±5 V, full-scale
loaded
1
Linearity calculated using a reduced code range (Code 256 to Code 16,128).
2
Guaranteed by design and characterization, not production tested.
3
Total current flowing into all pins.