AD5292BRUZ-20 datasheet(4/28 Pages) AD

部品番号	AD5292BRUZ-20

部品情報	256-/1024-Position, DigiPOT Potentiometers with Maximum 짹1% R-Tolerance Error and 20-TP Memory

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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

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

同様の部品番号 - AD5292BRUZ-20

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