Data Sheet

ADA4857-1/ADA4857-2

Rev. D | Page 3 of 21

SPECIFICATIONS

±5 V SUPPLY

TA = 25°C, G = 2, RG = RF = 499 Ω, RS = 100 Ω for G = 1 (SOIC), RL = 1 kΩ to ground, PD = no connect, unless otherwise noted.

Table 1.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

DYNAMIC PERFORMANCE

–3 dB Bandwidth (LFCSP/SOIC)

Gain (G) = 1, VOUT = 0.2 V p-p

650

850/750

MHz

G = 1, VOUT = 2 V p-p

600/550

MHz

G = 2, VOUT = 0.2 V p-p

400/350

MHz

Full Power Bandwidth

G = 1, VOUT = 2 V p-p, THD < −40 dBc

110

MHz

Bandwidth for 0.1 dB Flatness

(LFCSP/SOIC)

G = 2, VOUT = 2 V p-p, RL = 150 Ω

75/90

MHz

Slew Rate (10% to 90%)

G = 1, VOUT = 4 V step

2800

V/μs

Settling Time to 0.1%

G = 2, VOUT = 2 V step

15

ns

NOISE/HARMONIC PERFORMANCE

Harmonic Distortion

f = 1 MHz, G = 1, VOUT = 2 V p-p (HD2)

−108

dBc

f = 1 MHz, G = 1, VOUT = 2 V p-p (HD3)

−108

dBc

f = 10 MHz, G = 1, VOUT = 2 V p-p (HD2)

−88

dBc

f = 10 MHz, G = 1, VOUT = 2 V p-p (HD3)

−93

dBc

f = 50 MHz, G = 1, VOUT = 2 V p-p (HD2)

−65

dBc

f = 50 MHz, G = 1, VOUT = 2 V p-p (HD3)

−62

dBc

Input Voltage Noise

f = 100 kHz

4.4

nV/√Hz

Input Current Noise

f = 100 kHz

1.5

pA/√Hz

DC PERFORMANCE

Input Offset Voltage

±2

±4.5

mV

TMIN to TMAX

±7.2

mV

Input Offset Voltage Drift

TMIN to TMAX

2.3

22

μV/°C

Input Bias Current

−2

−3.3

μA

TMIN to TMAX

−3.8

μA

Input Bias Offset Current

50

800

nA

Open-Loop Gain

VOUT = −2.5 V to +2.5 V

57

dB

PD (POWER-DOWN) PIN

PD Input Voltage

Chip powered down

≥ (+VS − 2)

V

Chip powered down, TMIN to TMAX

≥ (+VS − 1.7)

V

Chip enabled

≤ (+VS − 4.2)

V

Chip enabled, TMIN to TMAX

≤ (+VS – 5.3)

V

Turn-Off Time

50% off PD to <10% of final VOUT, VIN = 1 V, G = 2

55

μs

Turn-On Time

50% off PD to <10% of final VOUT, VIN = 1 V, G = 2

33

ns

PD Pin Leakage Current

Chip enabled

58

μA

Chip powered down

80

μA

INPUT CHARACTERISTICS

Input Resistance

Common mode

8

MΩ

Differential mode

4

MΩ

Input Capacitance

Common mode

2

pF

Input Common-Mode Voltage

Range

±4

V

Common-Mode Rejection Ratio

VCM = ±1 V

−78

−86

dB

VCM = −3.6 V to +3.7 V, TMIN to TMAX

−70

dB