ADATE304BBCZ datasheet(9/52 Pages) AD

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ADATE304

Rev. 0 | Page 9 of 52

DIFFERENTIAL COMPARATOR

VOH tests done with VOL = −1.1 V, VOL tests done with VOH = +1.1 V, unless otherwise specified.

Table 5.

Parameter

Min

Typ

Max

Unit

Test

Level

Test Conditions/Comments

DC SPECIFICATIONS

Input Voltage Range

−1.25

+4.5

Operational Differential Voltage

Range

±0.05

±1.1

Maximum Differential Voltage Range

±8

Comparator Input Offset Voltage

Accuracy, Uncalibrated

−150

±35

+150

P/CT

Offset measured at differential calibration points +1.0 V

and −1.0 V, with common mode = 0.0 V

VOH, VOL Resolution

0.6

After two-point gain/offset calibration; range/number of

DAC bits as measured at differential calibration points

+1.0 V and −1.0 V, with common mode = 0.0 V

VOH, VOL DNL

±1

After two-point gain/offset calibration; common

mode = 0.0 V

VOH, VOL INL

−15

±2.0

+15

After two-point gain/offset calibration; measured over VOH,

VOL range of −1.1 V to +1.1 V, common mode = 0.0 V

VOH, VOL Offset Voltage Tempco

±200

μV/°C

Measured at calibration points

Comparator Uncertainty Range

VDUTx = 0 V, sweep comparator threshold to determine

uncertainty region

DC Hysteresis

0.5

VDUTx = 0 V

CMRR

0.15

mV/V

Offset measured at common-mode voltage points of

−1.5 V and +4.5 V, with differential voltage = 0.0 V

DC PSRR

±1.5

mV/V

Measured at calibration points

AC SPECIFICATIONS

Input transition time = 800 ps, 10% to 90%, measured

with each comparator leg terminated 50 Ω to GND

Propagation Delay, Input to Output

1.7

VDUT0 = 0 V, VDUT1 = −0.5 V to +0.5 V swing, Driver VTERM

mode, VT = 0.0 V; high-side measurement: VOH = 0.0 V,

VOL = −1.1 V; low-side measurement: VOH = +1.1 V,

VOL = 0.0 V; repeat for other DUT channel

Propagation Delay Tempco

ps/°C

VDUT0 = 0 V, VDUT1 = −0.5 V to +0.5 V swing, Driver VTERM

mode, VT = 0.0 V; high-side measurement: VOH = 0.0 V,

VOL = −1.1 V; low-side measurement: VOH = +1.1 V,

VOL = 0.0 V; repeat for other DUT channel

Propagation Delay Matching

VDUT0 = 0 V, VDUT1 = −0.5 V to +0.5 V swing, Driver VTERM

mode, VT = 0.0 V; high-side measurement: VOH = 0.0 V,

VOL = −1.1 V; low-side measurement: VOH = +1.1 V,

VOL = 0.0 V; repeat for other DUT channel

High Transition to Low Transition

100

High-to-Low Comparator

Propagation Delay Change (with

Respect To)

VDUT0 = 0 V, VDUT1 = −0.5 V to +0.5 V swing, Driver VTERM

mode, VT = 0.0 V; high-side measurement: VOH = 0.0 V,

VOL = −1.1 V; low-side measurement: VOH = +1.1 V,

VOL = 0.0 V; repeat for other DUT channel

Slew Rate, 800 ps, 1 ns, 1.2 ns, and

2.2 ns (10% to 90%)

VDUT0 = 0 V, VDUT1 = −0.5 V to +0.5 V swing, Driver VTERM

mode, VT = 0.0 V; high-side measurement: VOH = 0.0 V,

VOL = −1.1 V; low-side measurement: VOH = +1.1 V,

VOL = 0.0 V; repeat for other DUT channel

Overdrive, 250 mV and 750 mV

100

VDUT0 = 0 V, for 250 mV: VDUT1 = 0 V to 0.5 V swing; for

750 mV: VDUT1 = 0 V to 1.0 V swing, Driver VTERM mode,

VT = 0.0 V; VOH = −0.25 V; repeat for other DUT channel

with comparator threshold = +0.25 V

Pulse Width, Sweep from 1.6 ns to

10 ns

VDUT0 = 0 V, VDUT1 = −0.5 V to +0.5 V swing @ 32 MHz, Driver

VTERM mode, VT = 0.0 V; high-side measurement: VOH =

0.0 V, VOL = −1.1 V; low-side measurement: VOH = +1.1 V,

VOL = 0.0 V; repeat for other DUT channel

Duty Cycle, 5% to 95%

VDUT0 = 0 V, VDUT1 = −0.5 V to +0.5 V swing @ 1 MHz, Driver

VTERM mode, VT = 0.0 V; high-side measurement: VOH =

0.0 V, VOL = −1.1 V; low-side measurement: VOH = +1.1 V,

VOL = 0.0 V; repeat for other DUT channel

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