ADA4945-1 datasheet(5/44 Pages) AD

No de pièce	ADA4945-1

Description	High Speed Offset Drift Fully Differential ADC Driver

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Data Sheet

ADA4945-1

Rev. 0 | Page 5 of 44

VOCM to Common-Mode Output Voltage (VOUT,cm) Performance

Table 2.

Full Power Mode

Low Power Mode

Parameter

Test Conditions/Comments

Min

Typ

Max

Min

Typ

Max

Unit

VOCM DYNAMIC

PERFORMANCE

−3 dB Small Signal

Bandwidth

VOUT, cm = 20 mV p-p

35

15

MHz

−3 dB Large Signal

Bandwidth

VOUT, cm = 2 V p-p

3.8

1.3

MHz

Slew Rate

VOUT, cm = 2 V p-p

26

9

V/µs

Input Voltage Noise

f = 100 kHz

35

45

nV/√Hz

Gain

ΔVOUT, cm/ΔVOCM, ΔVOCM = ±1 V

0.99

1

1.01

0.99

1

1.01

V/V

VOCM CHARACTERISTICS

Input Common-Mode

Voltage Range

−VS + 0.4

+VS − 1.4

−VS + 0.4

+VS − 1.4

V

Input Resistance

125

kΩ

Offset Voltage

Common mode offset (VOS,cm) =

VOUT,cm − VOCM, positive input (VIP) =

negative input (VIN) = VOCM = 0 V

25°C

±5

±60

±5

±60

mV

TA = 20°C to 85°C

±10

mV

TA = −40°C to +125°C

±20

mV

Input Offset Voltage

Drift

TA = 20°C to 85°C

±5

µV/°C

TA = −40°C to +125°C

±10

µV/°C

Input Bias Current

TA = 25°C

−220

−160

µA

TA = 20°C to 85°C

−300

−205

µA

TA = −40°C to +125°C

−350

−230

µA

Input Bias Current

Drift

TA = 20°C to 85°C

−1.3

−0.75

µA/°C

TA = −40°C to +125°C

−1.5

−1.0

µA/°C

CMRR

ΔVOS,dm/ΔVOCM, ΔVOCM = ±1 V

−130

dB

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