ADATE320 datasheet(9/83 Pages) AD

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ADATE320

Data Sheet

Rev. B | Page 8 of 82

Parameter

Min

Typ

Max

Unit

Test

Level

Test Conditions/Comments

Gain

1.0

1.1

V/V

Drive high-Z, sourcing 1 mA, gain derived from measure-

ments at DAC Code 0x4000 (0.0 V) and DAC Code 0x8CCC

(3.0 V), based on an ideal DAC transfer function (see Table 24)

Gain TC

±25

ppm/°C

Resolution

153

µV

DNL

±250

µV

Drive high-Z, sourcing 1 mA, after two-point gain/offset

calibration; calibration points at DAC Code 0x4000 (0.0 V)

and DAC Code 0x8CCC (3.0 V), measured over the

functional range

INL

−20

+20

Drive high-Z, sourcing 1 mA, after two-point gain/offset

calibration; calibration points at DAC Code 0x4000 (0.0 V)

and DAC Code 0x8CCC (3.0 V), measured over the

functional range

DC CLAMP CURRENT LIMIT

Drive high-Z

VCHx

−105

−60

VCHx = −1.0 V, VCLx = −2.0 V, VDUTx = 4.5 V

VCLx

+60

+105

VCHx = 5.0 V, VCLx = 4.0 V, VDUTx = −1.5 V

DUTGND VOLTAGE ACCURACY

−10

±2

+10

Over ±0.1 V range, measured at end points of VCHx and

VCLx functional range

NORMAL WINDOW COMPARATOR (NWC) SPECIFICATIONS

Table 4.

Parameter

Min

Typ

Max

Unit

Test

Level

Test Conditions/Comments

DC SPECIFICATIONS

Input Voltage Range

−1.5

+4.5

Differential Voltage Range

±0.1

±6.0

Input Offset Voltage

−250

+250

Measured at DAC Code 0x4000 (0.0 V); uncalibrated

Input Offset Voltage TC

±150

µV/°C

Gain

1.0

1.1

V/V

Gain derived from measurements at DAC Code 0x4000

(0.0 V) and DAC Code 0x8CCC (3.0 V); based on an ideal

DAC transfer function (see Table 24)

Gain TC

±10

ppm/°C

Threshold Resolution

153

µV

Threshold DNL

±0.25

Measured over −1.5 V to +4.5 V functional range after

two-point gain/offset calibration; calibration points at

DAC Code 0x4000 (0.0 V) and DAC Code 0x8CCC (3.0 V)

Threshold INL

After two-point gain/offset calibration; calibration points

at DAC Code 0x4000 (0.0 V) and DAC Code 0x8CCC (3.0 V)

Focused Range

−5

Measured over −0.5 V to +3.5 V range

Full Range

−7

Measured over −1.5 V to +4.5 V range

DUTGND Voltage Accuracy

−5

±1

Over ±0.1 V range; measured over −0.5 V to +3.5 V focused

NWC input range

Uncertainty Band

VDUTx = 0.0 V, sweep comparator threshold to determine

the uncertainty band

Programmable Hysteresis

100

Hysteresis Resolution

Bits

DC PSR

±5

mV/V

Measured at DAC Code 0x4000 (0.0 V) and DAC Code 0x8CCC

(3.0 V) calibration points

Digital Output

Characteristics

Internal Pull-up

Resistance to

Comparator, VTTCx

Source 1 mA and 10 mA from the output pin in high state,

measure ∆V to calculate resistance; R = ∆V/9 mA; repeat

for all output pins

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