AD5522_08 datasheet(6/60 Pages) AD

Numer części	AD5522

Szczegółowy opis	Quad Parametric Measurement Unit with Integrated 16-Bit Level Setting DACs

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Producent	AD [Analog Devices]

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AD5522

Rev. A | Page 6 of 60

SPECIFICATIONS

AVDD ≥ 10 V; AVSS ≤ −5 V; |AVDD − AVSS| ≥ 20 V and ≤ 33 V; DVCC = 2.3 V to 5.25 V; VREF = 5 V; REFGND = DUTGND = AGND

= 0 V; gain (M), offset (C), and DAC offset registers at default values; TJ = 25°C to 90°C, unless otherwise noted. (FV = force voltage,

FI = force current, MV = measure voltage, MI = measure current, FS = full scale, FSR = full-scale range, FSVR = full-scale voltage range,

FSCR = full-scale current range.)

Table 1.

Parameter

Min

Typ1

Max

Unit

Test Conditions/Comments

FORCE VOLTAGE

FOHx Output Voltage Range2

AVSS + 4

AVDD − 4

V

All current ranges from FOHx at full-scale current;

includes ±1 V dropped across sense resistor

EXTFOHx Output Voltage

Range2

AVSS + 3

AVDD − 3

V

External high current range at full-scale current;

does not include ±1 V dropped across sense resistor

Output Voltage Span

22.5

V

Offset Error

−50

+50

mV

Measured at midscale code; prior to calibration

Offset Error Tempco2

−10

μV/°C

Standard deviation = 20 μV/°C

Gain Error

−0.5

+0.5

% FSR

Prior to calibration

Gain Error Tempco2

0.5

ppm/°C

Standard deviation = 0.5 ppm/°C

Linearity Error

−0.01

+0.01

% FSR

FSR = full-scale range (±10 V), gain and offset errors

calibrated out

Short-Circuit Current Limit2

−150

+150

mA

±80 mA range

−10

+10

mA

All other ranges

Noise Spectral Density (NSD)2

320

nV/√Hz

1 kHz, at FOHx in FV mode

MEASURE CURRENT

Measure current = (IDUT × RSENSE × gain); amplifier

gain = 5 or 10, unless otherwise noted

Differential Input Voltage

Range2

−1.125

+1.125

V

Voltage across RSENSE; gain = 5 or 10

Output Voltage Span

22.5

V

Measure current block with VREF = 5 V, MEASOUT

scaling happens after

Offset Error

−0.5

+0.5

% FSCR

V(RSENSE) = ±1 V, measured with zero current flowing

Offset Error Tempco2

1

μV/°C

Referred to MI input; standard deviation = 4 μV/°C

Gain Error

−1

+1

% FSCR

Using internal current ranges

−0.5

+0.5

% FSCR

Measure current amplifier alone

Gain Error Tempco2

−2

ppm/°C

Standard deviation = 2 ppm/°C

Linearity Error

−0.015

+0.015

% FSCR

Gain and offset errors calibrated out; MEASOUTx

gain = 1; MI gain = 10

−0.01

+0.01

% FSCR

Gain and offset errors calibrated out; MEASOUTx

gain = 1; MI gain = 5

Common-Mode Voltage Range2

AVSS + 4

AVDD − 4

V

Common-Mode Error

−0.005

+0.005

% FSVR/V

% of full-scale change at measure output per V

change in DUT voltage

Sense Resistors

Sense resistors are trimmed to within 1%

200

kΩ

±5 μA range

50

kΩ

±20 μA range

5

kΩ

±200 μA range

0.5

kΩ

±2 mA range

Measure Current Ranges2

Specified current ranges are achieved with VREF = 5 V

and MI gain = 10, or with VREF = 2.5 V and MI gain = 5

±5

μA

Set using internal sense resistor

±20

μA

Set using internal sense resistor

±200

μA

Set using internal sense resistor

±2

mA

Set using internal sense resistor

±80

mA

Set using external sense resistor; internal amplifier

can drive up to ±80 mA

Noise Spectral Density (NSD)2

400

nV/√Hz

1 kHz, MI amplifier only, inputs grounded

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