Datasheet

AD5522 Data Sheet
Rev. E | Page 6 of 64
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; T
J
= 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 Typ
1
Max Unit Test Conditions/Comments
FORCE VOLTAGE
FOHx Output Voltage Range
2
AVSS + 4 AVDD − 4 V
All current ranges from FOHx at full-scale current;
includes ±1 V dropped across sense resistor
EXTFOHx Output Voltage Range
2
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 Tempco
2
−10 µV/°C Standard deviation = 20 μV/°C
Gain Error −0.5 +0.5 % FSR Prior to calibration
Gain Error Tempco
2
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 Limit
2
−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 = (I
DUT
× R
SENSE
× gain);
amplifier gain = 5 or 10, unless otherwise noted
Differential Input Voltage Range
2
−1.125 +1.125 V Voltage across R
SENSE
; 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(R
SENSE
) = ±1 V, measured with zero current flowing
Offset Error Tempco
2
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 Tempco
2
−2 ppm/°C
Standard deviation = 2 ppm/°C
Measure current amplifier alone; internal sense resistor
25 ppm/°C
Linearity Error (MEASOUTx Gain = 1)
−0.015
+0.015
% FSR
MI gain = 10
−0.01
+0.01
% FSR
MI gain = 5
Linearity Error (MEASOUTx Gain = 0.2) −0.06 +0.06 % FSR
MI gain = 10, AVDD = 28 V, AVSS = −5 V,
offset DAC = 0x0
−0.11 +0.11 % FSR
MI gain = 10, AVDD = 10 V, AVSS = −23 V,
offset DAC = 0x0EDB7
−0.015 +0.015 % FSR
MI gain = 10, AVDD = 15.25 V, AVSS = −15.25 V,
offset DAC = 0xA492
−0.06 +0.06 % FSR
MI gain = 5, AVDD = 28 V, AVSS = −5 V,
offset DAC = 0x0
−0.01 +0.01 % FSR
MI gain = 5, AVDD = 10 V, AVSS = −23 V,
offset DAC = 0xEDB7
−0.01 +0.01 % FSR
MI gain = 5, AVDD = 15.25 V, AVSS = −15.25 V,
offset DAC = 0xA492
Common-Mode Voltage Range
2
AVSS + 4 AVDD − 4 V
Common-Mode Error (Gain = 5) −0.01 +0.01 % FSCR/V
% of full-scale change at force output per V change
in DUT voltage
Common-Mode Error (Gain = 10) −0.005 +0.005 % FSCR/V
% of full-scale change at force 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