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AD5232 데이터시트(PDF) 3 Page - Analog Devices

부품명 AD5232
상세설명  8-Bit Dual Nonvolatile Memory Digital Potentiometer
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AD5232 데이터시트(HTML) 3 Page - Analog Devices

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–3–
REV. 0
nV/
√Hz
Parameter
Symbol
Conditions
Min
Typ
1
Max Unit
DYNAMIC CHARACTERISTICS
5, 9
Bandwidth
–3 dB, BW_10 k
Ω, R = 10 kΩ
500
kHz
Total Harmonic Distortion
THDW
VA = 1 V rms, VB = 0 V, f = 1 kHz,
RAB = 10 k
0.022
%
THDW
VA =1 V rms, VB = 0 V, f = 1 kHz,
RAB = 50 kΩ, 100 kΩ
0.045
%
VW Settling Time
tS
VDD =5 V, VSS =0 V, VA = VDD, VB = 0 V,
VW = 0.50% Error Band, Code 00H to 80H
For RAB = 10 kΩ/50 kΩ/100 kΩ
0.65/3/6
µs
Resistor Noise Voltage
eN_WB
RWB = 5 k
Ω, f = 1 kHz
9
Crosstalk (CW1/CW2)CT
VA = VDD, VB = 0 V, Measure VW with
Adjacent VR Making Full-Scale Code Change
–5
nV-s
Analog Crosstalk (CW1/CW2)CTA
VA1 = VDD, VB1 = 0 V, Measure VW1
with VW2 = 5 V p-p @ f = 10 kHz,
Code1 = 80H; Code2 = FFH
–70
dB
INTERFACE TIMING CHARACTERISTICS – Applies to All Parts
5, 10
Clock Cycle Time (tCYC)t1
20
ns
CS Setup Time
t2
10
ns
CLK Shutdown Time to
CS Rise
t3
1tCYC
Input Clock Pulsewidth
t 4 , t 5
Clock Level High or Low
10
ns
Data Setup Time
t6
From Positive CLK Transition
5
ns
Data Hold Time
t7
From Positive CLK Transition
5
ns
CS to SDO-SPI Line Acquire
t8
40
ns
CS to SDO-SPI Line Release
t 9
50
ns
CLK to SDO Propagation Delay
11
t10
RP = 2.2 k
Ω, C
L < 20 pF
50
ns
CLK to SDO Data Hold Time
t11
RP = 2.2 k
Ω, C
L < 20 pF
0
ns
CS High Pulsewidth12
t12
10
ns
CS High to CS High12
t 13
4tCYC
RDY Rise to
CS Fall
t 14
0ns
CS Rise to RDY Fall Time
t 15
0.1
0.15
ms
Read/Store to Nonvolatile EEMEM
13
t 16
Applies to Command 2H, 3H, 9H
25
ms
CS Rise to Clock Rise/Fall Setup
t17
10
ns
Preset Pulsewidth (Asynchronous)
tPRW
Not Shown in Timing Diagram
50
ns
Preset Response Time to RDY High tPRESP
PR Pulsed Low to Refreshed
Wiper Positions
70
µs
FLASH/EE MEMORY RELIABILITY CHARACTERISTICS
Endurance
14
100
K Cycles
Data Retention
15
100
Years
NOTES
1Typical parameters represent average readings at 25
°C and V
DD = 5 V.
2Resistor position nonlinearity error R-INL is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper
postions. R-DNL measures the relative step change from ideal between successive tap positions. Parts are guaranteed monotonic. I W ~ 50 µA @ VDD = 2.7 V and
IW ~ 400 µA @ VDD = 5 V for the RAB = 10 kΩ version, IW ~ 50 µA for the RAB = 50 kΩ and IW ~ 25 µA for the RAB = 100 kΩ version. See Figure 13.
3INL and DNL are measured at V
W with the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. V A = VDD and VB = VSS. DNL
specification limits of
± 1 LSB maximum are Guaranteed Monotonic operating conditions. See Figure 14.
4Resistor terminals A, B, W have no limitations on polarity with respect to each other. Dual Supply Operation enables ground-referenced bipolar signal adjustment.
5Guaranteed by design and not subject to production test.
6Common-mode leakage current is a measure of the dc leakage from any terminal A, B, W to a common-mode bias level of V
DD/2.
7Transfer (XFR) Mode current is not continuous. Current consumed while EEMEM locations are read and transferred to the RDAC register. See TPC 9.
8P
DISS is calculated from (IDD
VDD) + (ISS
VSS).
9All dynamic characteristics use V
DD = +2.5 V and VSS = –2.5 V unless otherwise noted.
10See timing diagram for location of measured values. All input control voltages are specified with t
R = tF = 2.5 ns (10% to 90% of 3 V) and timed from a voltage level
of 1.5 V. Switching characteristics are measured using both V DD = 3 V or 5 V.
11Propagation delay depends on value of V
DD, RPULL_UP, and CL. See applications text.
12Valid for commands that do not activate the RDY pin.
13RDY pin low only for instruction commands 8, 9, 10, 2, 3, and the
PR hardware pulse: CMD_8 ~ 1 ms; CMD_9,10 ~ 0.12 ms; CMD_2,3 ~ 20 ms. Device operation
at TA = –40°C and VDD < 3 V extends the save time to 35 ms.
14Endurance is qualified to 100,000 cycles as per JEDEC Std. 22 method A117 and measured at V
DD = 2.7 V, TA = –40°C to +85°C, typical endurance at 25°C is
700,000 cycles.
15Retention lifetime equivalent at junction temperature (T
J) = 55°C as per JEDEC Std. 22, Method A117. Retention lifetime based on an activation energy of 0.6eV
will derate with junction temperature as shown in Figure 23 in the Flash/EE Memory description section of this data sheet. The AD5232 contains 9,646
transistors. Die size: 69 mil
115 mil, 7,993 sq. mil.
Specifications subject to change without notice
AD5232


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