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AD5450 Scheda tecnica(PDF) 4 Page - Analog Devices

Il numero della parte AD5450
Spiegazioni elettronici  Dual 12-Bit, High Bandwidth, Multiplying DAC with 4-Quadrant Resistors and Parallel Interface
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

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AD5405
Rev. B | Page 3 of 24
SPECIFICATIONS1
VDD = 2.5 V to 5.5 V, VREF = 10 V, IOUT2 = 0 V. Temperature range for Y version: −40°C to +125°C. All specifications TMIN to TMAX, unless
otherwise noted. DC performance is measured with OP177, and ac performance is measured with AD8038, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Conditions
STATIC PERFORMANCE
Resolution
12
Bits
Relative Accuracy
±1
LSB
Differential Nonlinearity
−1/+2
LSB
Guaranteed monotonic
Gain Error
±25
mV
Gain Error Temperature Coefficient
±5
ppm FSR/°C
Bipolar Zero-Code Error
±25
mV
Output Leakage Current
±1
nA
Data = 0x0000, TA = 25°C, IOUT1
±15
nA
Data = 0x0000, TA = −40°C to +125°C, IOUT1
REFERENCE INPUT
Reference Input Range
±10
V
VREFA, VREFB Input Resistance
8
10
13
Input resistance TC = −50 ppm/°C
VREFA-to-VREFB Input Resistance
Mismatch
1.6
2.5
%
Typ = 25°C, max = 125°C
R1, RFB Resistance
17
20
25
Input resistance TC = −50 ppm/°C
R2, R3 Resistance
17
20
25
Input resistance TC = −50 ppm/°C
R2-to-R3 Resistance Mismatch
0.06
0.18
%
Typ = 25°C, max = 125°C
Input Capacitance
Code 0
3.5
pF
Code 4095
3.5
pF
DIGITAL INPUTS/OUTPUT
Input High Voltage, VIH
1.7
V
VDD = 3.6 V to 5.5 V
1.7
V
VDD = 2.5 V to 3.6 V
Input Low Voltage, VIL
0.8
V
VDD = 2.7 V to 5.5 V
0.7
V
VDD = 2.5 V to 2.7 V
Output High Voltage, VOH
VDD − 1
V
VDD = 4.5 V to 5.5 V, ISOURCE = 200 μA
VDD − 0.5
V
VDD = 2.5 V to 3.6 V, ISOURCE = 200 μA
Output Low Voltage, VOL
0.4
V
VDD = 4.5 V to 5.5 V, ISINK = 200 μA
0.4
V
VDD = 2.5 V to 3.6 V, ISINK = 200 μA
Input Leakage Current, IIL
1
μA
Input Capacitance
4
10
pF
DYNAMIC PERFORMANCE
Reference-Multiplying BW
10
MHz
VREF = ±3.5 V p-p, DAC loaded all 1s
Output Voltage Settling Time
RLOAD = 100 Ω, CLOAD = 15 pF, VREF = 10 V
DAC latch alternately loaded with 0s and 1s
Measured to ±1 mV of FS
80
120
ns
Measured to ±4 mV of FS
35
70
ns
Measured to ±16 mV of FS
30
60
ns
Digital Delay
20
40
ns
Interface time delay
10% to 90% Settling Time
15
30
ns
Rise and fall times
Digital-to-Analog Glitch Impulse
3
nV-sec
1 LSB change around major carry, VREF = 0 V
Multiplying Feedthrough Error
DAC latch loaded with all 0s, VREF = ±3.5 V
70
dB
1 MHz
48
dB
10 MHz
Output Capacitance
12
17
pF
DAC latches loaded with all 0s
25
30
pF
DAC latches loaded with all 1s


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