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AD7804BR Datasheet(PDF) 3 Page - Analog Devices

No. de pieza AD7804BR
Descripción Electrónicos  3.3 V to 5 V Quad/Octal 10-Bit DACs
Download  28 Pages
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD7804BR Datasheet(HTML) 3 Page - Analog Devices

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Parameter
B Grade1
Units
Comments
STATIC PERFORMANCE
MAIN DAC
Resolution
10
Bits
Relative Accuracy
±4
LSB max
Gain Error
±3
% FSR max
Bias Offset Error2
±60
mV max
DAC Code = 0.5 Full Scale
Zero-Scale Error
±35
mV max
DAC Code = 000H for Offset Binary
Monotonicity
9
Bits
and 200H for Twos Complement
Minimum Load Resistance
2
k
Ω min
Coding
SUB DAC
Resolution
8
Bits
Differential Nonlinearity
±0.125
LSB typ
Refers to an LSB of the Main DAC
±0.5
LSB max
OUTPUT CHARACTERISTICS
Output Voltage Range3
VBIAS
± 15/16 × V
BIAS
V
Twos Complement Coding
VBIAS/16 to 31/16
× V
BIAS
V
Offset Binary Coding
Voltage Output Settling Time to 10 Bits
4
µs max
Typically 1.5
µs
Slew Rate
2.5
V/
µs typ
Digital-to-Analog Glitch Impulse
1
nV-s typ
1 LSB Change Around the Major Carry
Digital Feedthrough
0.5
nV-s typ
Digital Crosstalk
0.5
nV-s typ
Analog Crosstalk
±0.2
LSB typ
DC Output Impedance
2
Ω typ
Power Supply Rejection Ratio
0.002
%/% typ
∆V
DD
± 10%
DAC REFERENCE INPUTS
REF IN Range
1.0 to VDD/2
V min to V max
REF IN Input Leakage
±1
µA max
Typically
±1 nA
DIGITAL INPUTS
Input High Voltage, VIH @ VDD = 5 V
2.4
V min
Input High Voltage, VIH @ VDD = 3.3 V
2.1
V min
Input Low Voltage, VIL @ VDD = 5 V
0.8
V max
Input Low Voltage, VIL @ VDD = 3.3 V
0.6
V max
Input Leakage Current
±10
µA max
Input Capacitance
8
pF max
Input Coding
Twos Comp/Binary
REFERENCE OUTPUT
REF OUT Output Voltage
1.23
V nom
REF OUT Error
±8
% max
REF OUT Temperature Coefficient
–100
ppm/
°C typ
REF OUT Output Impedance
5
k
Ω nom
POWER REQUIREMENTS
VDD (AVDD and DVDD)
3/5.5
V min to V max
IDD (AIDD Plus DIDD)
Excluding Load Currents
Normal Mode
18
mA max
VIH = VDD, VIL = DGND
System Standby (SSTBY) Mode
250
µA max
VIH = VDD, VIL = DGND
Power-Down (
PD) Mode
@ +25
°C1
µA max
VIH = VDD, VIL = DGND
TMIN–TMAX
3
µA max
Power Dissipation
Excluding Power Dissipated in Load
Normal Mode
99
mW max
System Standby (SSTBY) Mode
1.38
mW max
Power-Down (
PD) Mode
@ +25
°C
5.5
µW max
TMIN–TMAX
16.5
µW max
NOTES
1Temperature range is – 40
°C to +85°C.
2Can be minimized using the Sub DAC.
3V
BIAS is the center of the output voltage swing and can be VDD/2, Internal Reference or REFIN as determined by MX1 and MX0 in the channel control register.
Specifications subject to change without notice.
(AVDD and DVDD = 3.3 V
10% to 5 V
10%; AGND = DGND = 0 V;
Reference = Internal Reference; CL = 100 pF; RL = 2 k
to GND. Sub DAC at Midscale. All specifications TMIN to TMAX unless otherwise noted.)
AD7808/AD7809–SPECIFICATIONS
AD7804/AD7805/AD7808/AD7809
REV. A
–3–


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