AD5293 datasheet(4/20 Pages) AD

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AD5293

Rev. 0 | Page 4 of 20

Parameter

Symbol

Conditions

Min

Typ1

Max

Unit

DYNAMIC CHARACTERISTICS4, 8

Bandwidth

−3 dB

520

kHz

Total Harmonic Distortion

THDW

VA = 1 V rms, VB = 0 V, f = 1 kHz,

−93

VW Settling Time

VA = 30 V, VB = 0 V, ±0.5 LSB error

band, initial code = zero scale

Code = full scale, normal mode

750

Code = full scale, R-Perf mode

2.5

μs

Code = half scale, normal mode

2.5

μs

Code = half scale, R-Perf mode

μs

Resistor Noise Density

eN_WB

RWB = 10 kΩ, TA = 25°C, 0 kHz to 200 kHz

0.11

nV/√Hz

1 Typicals 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 The terms resistor performance mode and R-Perf mode are used interchangeably.

4 Guaranteed by design; not subject to production test.

5 INL and DNL are measured at VW 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 The A, B, and W resistor terminals have no limitations on polarity with respect to each other. Dual-supply operation enables ground-referenced bipolar signal

adjustment.

7 PDISS is calculated from (IDD × VDD) + (ISS × VSS) + (ILOGIC × VLOGIC).

8 All dynamic characteristics use VDD = +15 V, VSS = −15 V, and VLOGIC = 5 V.

RESISTOR PERFORMANCE (R-PERF) MODE CODE RANGE

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 0x15E

to 0x3FF

From 0x00

to 0x2A1

From 0x1F4

to 0x3FF

From 0x00

to 0x20B

From 0x1F4

to 0x3FF

From 0x00

to 0x20B

N/A

2% R-Tolerance

From 0x8C

to 0x3FF

From 0x00

to 0x373

From 0xB4

to 0x3FF

From 0x00

to 0x34B

From 0xFA

to 0x3FF

From 0x00

to 0x305

From 0xFA

to 0x3FF

From 0x00

to 0x305

3% R-Tolerance

From 0x5A

to 0x3FF

From 0x00

to 0x3A5

From 0x64

to 0x3FF

From 0x00

to 0x39B

From 0x78

to 0x3FF

From 0x00

to 0x387

From 0x78

to 0x3FF

From 0x00

to 0x387

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