ADATE304BBCZ datasheet(8/52 Pages) AD

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ADATE304

Rev. 0 | Page 8 of 52

Parameter

Min

Typ

Max

Unit

Test

Level

Test Conditions/Comments

Comparator Uncertainty Range

6.0

VDUTx = 0 V, sweep comparator threshold to

determine uncertainty region

DC Hysteresis

0.5

VDUTx = 0 V

DC PSRR

±5

mV/V

Measured at calibration points

Digital Output Characteristics

Internal Pull-Up Resistance to

Comparator, COMP_VTT Pin

Pull 1 mA and 10 mA from Logic 1 leg and

measure ΔV to calculate resistance; measured

ΔV/9 mA; done for both comparator logic

states

VCOMP_VTT Range

3.3

5.0

Common-Mode Voltage

VCOMP_VTT − 1.88

Measured with 100 Ω differential termination

VCOMP_VTT − 2.075

VCOMP_VTT − 1.675

Measured with no external termination

Differential Voltage

250

Measured with 100 Ω differential termination

400

500

600

Measured with no external termination

Rise/Fall Time, 20% to 80%

450

Measured with each comparator leg

terminated 50 Ω to GND

AC SPECIFICATIONS

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

measured with each comparator leg

terminated 50 Ω to GND, unless otherwise

specified

Propagation Delay, Input to

Output

1.75

VDUTx = 0 V to 1.0 V swing, Driver VTERM

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

VOH = +0.50 V, VOL = −1.25 V; low-side

measurement: VOH = +6.75 V, VOL = +0.50 V

Propagation Delay Tempco

ps/°C

VDUTx = 0 V to 1.0 V swing, Driver VTERM

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

VOH = +0.50 V, VOL = −1.25 V; low-side

measurement: VOH = +6.75 V, VOL = +0.50 V

Propagation Delay Matching

VDUTx = 0 V to 1.0 V swing, Driver VTERM

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

VOH = +0.50 V, VOL = −1.25 V; low-side

measurement: VOH = +6.75 V, VOL = +0.50 V

High Transition to Low

Transition

200

High to Low Comparator

Propagation Delay Change (with

Respect To)

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

and 2.2 ns (10% to 90%)

VDUTx = 0 V to 1.0 V swing, Driver VTERM

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

VOH = +0.50 V, VOL = −1.25 V; low-side

measurement: VOH = +6.75V, VOL = +0.50 V

Overdrive, 250 mV and 1.0 V

For 250 mV: VDUTx = 0 V to 0.5 V swing; for

1.0 V: VDUTx = 0 V to 1.25 V swing; Driver

VTERM mode, VT = 0.0 V; high-side

measurement: VOH = +0.25 V, VOL = −1.25

V; low-side measurement: VOH = +6.75 V,

VOL = +0.25 V

Pulse Width, Sweep 1.6 ns to

10 ns

VDUTx = 0 V to 1.0 V swing @ 32.0 MHz,

Driver VTERM mode, VT = 0.0 V; high-side

measurement: VOH = +0.5 V, VOL = −1.25 V;

low-side measurement: VOH = +6.75 V,

VOL = +0.5 V

Duty Cycle, 5% to 95%

VDUTx = 0 V to 1.0 V swing @ 1.0 MHz, Driver

VTERM mode, VT =0.0 V; high-side

measurement: VOH = +0.50 V, VOL = −1.25

V; low-side measurement: VOH = +6.75 V,

VOL = +0.50 V

Minimum Pulse Width

2.0

VDUTx = 0 V to 1.0 V swing, Driver VTERM

mode, VT = 0.0 V; less than 12% amplitude

degradation measured by shmoo

Input Equivalent Bandwidth,

Terminated

500

MHz

VDUTx = 0 V to 1.0 V swing, Driver VTERM

mode, VT = 0.0 V; as measured by shmoo

ERT High-Z Mode, 3 V, 20%

to 80%

2.5

VDUTx = 0 V to 3.0 V swing, driver high-Z; as

measured by shmoo; input transition time of

~2000 ps, 10% to 90%

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