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AD5292 Folha de dados(PDF) 4 Page - Analog Devices

Nome de Peças AD5292
Descrição Electrónicos  256-/1024-Position, DigiPOT Potentiometers with Maximum 짹1% R-Tolerance Error and 20-TP Memory
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD5292 Folha de dados(HTML) 4 Page - Analog Devices

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AD5291/AD5292
Rev. 0 | Page 4 of 28
Parameter
Symbol
Conditions
Min
Typ1
Max
Unit
DYNAMIC CHARACTERISTICS4, 10
Bandwidth
BW
−3 dB
520
kHz
Total Harmonic Distortion
THDW
VA = 1 V rms, VB = 0 V, f = 1 kHz
−93
dB
VW Settling Time
tS
VA = 30 V, VB = 0 V, ±0.5 LSB error
band, initial code = zero scale
Code = full scale, normal mode
750
ns
Code = full scale, R-Perf mode
2.5
μs
Code = half scale, normal mode
2.5
μs
Code = half scale, R-Perf mode
5
μs
Resistor Noise Density
eN_WB
RWB = 10 kΩ, TA = 25°C, 0 kHz to
200 kHz
0.11
nV/√Hz
1 Typical values represent average readings at 25°C, VDD = 15 V, VSS = −15 V, and VLOGIC = 5 V.
2 Resistor position nonlinearity error. R-INL is the deviation from an ideal value measured between the RWB at Code 0x02 and the RWB at Code 0xFF or between RWA at
Code 0xFD and RWA at Code 0x00. R-DNL measures the relative step change from ideal between successive tap positions. The specification is guaranteed in resistor
performance mode, with a wiper current of 1 mA for VA < 12 V and 1.2 mA for VA ≥ 12 V.
3 Resistor performance mode (see the Resistor Performance Mode section). The terms resistor performance mode and R-Perf mode are used interchangeably.
4 Guaranteed by design and characterization, not subject to production test.
5 INL and DNL are measured at VWB with the RDAC configured as a potentiometer divider similar to a voltage output DAC. VA = VDD and VB = 0 V. DNL specification limits
of ±1 LSB maximum are guaranteed monotonic operating conditions.
6 Resistor Terminal A, Resistor Terminal B, and Resistor Terminal W have no limitations on polarity with respect to each other. Dual-supply operation enables ground-
referenced bipolar signal adjustment.
7 Different from operating current; supply current for fuse program lasts approximately 550 μs.
8 Different from operating current; supply current for fuse read lasts approximately 550 μs.
9 PDISS is calculated from (IDD × VDD) + (ISS × VSS) + (ILOGIC × VLOGIC).
10 All dynamic characteristics use VDD = +15 V, VSS = −15 V, and VLOGIC = 5 V.
RESISTOR PERFORMANCE MODE CODE RANGE—AD5291
Table 2.
Resistor
Tolerance per
Code
|VDD − VSS| = 30 V to 33 V
|VDD − VSS| = 26 V to 30 V
|VDD − VSS| = 22 V to 26 V
|VDD − VSS| = 21 V to 22 V
RWB
RWA
RWB
RWA
RWB
RWA
RWB
RWA
1% R-Tolerance
From 0x5A
to 0xFF
From 0x00
to 0xA5
From 0x7D
to 0xFF
From 0x00
to 0x82
From 0x7D
to 0xFF
From 0x00
to 0x82
N/A
N/A
2% R-Tolerance
From 0x23
to 0xFF
From 0x00
to 0xDC
From 0x2D
to 0xFF
From 0x00
to 0xD2
From 0x23
to 0xFF
From 0x00
to 0xDC
From 0x23
to 0xFF
From 0x00
to 0xDC
3% R-Tolerance
From 0x1E
to 0xFF
From 0x00
to 0xE1
From 0x19
to 0xFF
From 0x00
to 0xE6
From 0x17
to 0xFF
From 0x00
to 0xE8
From 0x17
to 0xFF
From 0x00
to 0xE8


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