ADA4841-2 datasheet(4/21 Pages) AD

Part #	ADA4841-2

Description	Low Power, Low Noise and Distortion ail-to-Rail Output Amplifiers

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ADA4841-1/ADA4841-2

Rev. E | Page 3 of 20

SPECIFICATIONS

TA = 25°C, VS = ±5 V, RL = 1 kΩ, Gain = +1, unless otherwise noted.

Table 1.

Parameter

Conditions

Min

Typ

Max

Unit

DYNAMIC PERFORMANCE

−3 dB Bandwidth

VO = 0.02 V p-p

58

80

MHz

VO = 2 V p-p

3

MHz

Slew Rate

G = +1, VO = 9 V step, RL = 1 kΩ

12

13

V/μs

Settling Time to 0.1%

G = +1, VO = 8 V step

650

ns

Settling Time to 0.01%

G = +1, VO = 8 V step

1000

ns

NOISE/HARMONIC PERFORMANCE

Harmonic Distortion HD2/HD3

fC = 100 kHz, VO = 2 V p-p, G = +1

−111/−105

dBc

fC = 1 MHz, VO = 2 V p-p

−80/−67

dBc

Input Voltage Noise

f = 100 kHz

2.1

nV/√Hz

Input Current Noise

f = 100 kHz

1.4

pA/√Hz

DC PERFORMANCE

Input Offset Voltage

40

300

μV

Input Offset Voltage Drift

1

μV/°C

Input Bias Current

3

5.3

μA

Input Offset Current

0.1

0.5

μA

Open-Loop Gain

VO = ±4 V

103

120

dB

INPUT CHARACTERISTICS

Input Resistance, Common Mode

90

MΩ

Input Resistance, Differential Mode

25

kΩ

Input Capacitance, Common Mode

1

pF

Input Capacitance, Differential Mode

3

pF

Input Common-Mode Voltage Range

−5.1

+4

V

Common-Mode Rejection Ratio (CMRR)

VCM = Δ 4 V

95

115

dB

MATCHING CHARACTERISTICS (ADA4841-2)

Input Offset Voltage

70

μV

Input Bias Current

60

nA

POWER DOWN PIN (ADA4841-1)

POWER DOWN Voltage

Enabled

>3.6

V

POWER DOWN Voltage

Power down

<3.2

V

Input Current

Enable

POWER DOWN = +5 V

1

2

μA

Power Down

POWER DOWN = −5 V

−13

−30

μA

Switching Speed

Enable

1

μs

Power Down

40

μs

OUTPUT CHARACTERISTICS

Output Voltage Swing

G > +1

±4.9

±4.955

V

Output Current Limit

Sourcing, VIN = +VS , RL = 50 Ω to GND

30

mA

Sinking, VIN = −VS , RL = 50 Ω to GND

60

mA

Capacitive Load Drive

30% overshoot

15

pF

POWER SUPPLY

Operating Range

2.7

12

V

Quiescent Current/Amplifier

POWER DOWN = +5 V

1.2

1.5

mA

POWER DOWN = −5 V

40

90

μA

Positive Power Supply Rejection Ratio

+VS = +5 V to +6 V, −VS = −5 V

95

110

dB

Negative Power Supply Rejection Ratio

+VS = +5 V, −VS = −5 V to −6 V

96

120

dB

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