AD8274 datasheet(3/16 Pages) AD

부품명	AD8274

상세설명	Very Low Distortion, Precision Difference Amplifier

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AD8274

Rev. A | Page 3 of 3

SPECIFICATIONS

VS = ±15 V, VREF = 0 V, TA = 25°C, RL = 2 kΩ, unless otherwise noted.

Table 2.

G = ½

G = 2

Parameter

Conditions

Min

Typ

Max

Min

Typ

Max

Unit

DYNAMIC PERFORMANCE

Bandwidth

20

10

MHz

Slew Rate

20

V/μs

Settling Time to 0.1%

10 V step on output, CL = 100 pF

650

750

675

775

ns

Settling Time to 0.01%

10 V step on output, CL = 100 pF

725

800

750

825

ns

NOISE/DISTORTION1

THD + Noise

f = 1 kHz, VOUT = 10 V p-p,

600 Ω load

0.00025

0.00035

%

Noise Floor, RTO2

20 kHz BW

−106

−100

dBu

Output Voltage Noise

(Referred to Output)

f = 20 Hz to 20 kHz

3.5

7

μV rms

f = 1 kHz

26

52

nV/√Hz

GAIN

Gain Error

0.03

%

Gain Drift

−40°C to +85°C

0.5

2

0.5

2

ppm/°C

Gain Nonlinearity

VOUT = 10 V p-p, 600 Ω load

2

ppm

INPUT CHARACTERISTICS

Offset3

Referred to output

150

700

300

1100

μV

vs. Temperature

−40°C to +85°C

3

6

μV/°C

vs. Power Supply

VS = ±2.5 V to ±18 V

5

10

μV/V

Common-Mode Rejection Ratio

VCM = ±40 V, RS = 0 Ω, referred

to input

77

86

83

92

dB

Input Voltage Range4

−3VS

+ 4.5

+3VS

− 4.5

−1.5VS

+ 2.3

+1.5VS

− 2.3

V

Impedance5

Differential

VCM = 0 V

24

12

kΩ

Common Mode6

9

kΩ

OUTPUT CHARACTERISTICS

Output Swing

−VS +

1.5

+VS −

1.5

−VS +

1.5

+VS −

1.5

V

Short-Circuit Current Limit

Sourcing

90

mA

Sinking

60

mA

Capacitive Load Drive

200

1200

pF

POWER SUPPLY

Supply Current (per Amplifier)

2.3

2.6

2.3

2.6

mA

TEMPERATURE RANGE

Specified Performance

−40

+85

−40

+85

°C

1 Includes amplifier voltage and current noise, as well as noise of internal resistors.

2 dBu = 20 log(V rms/0.7746).

3 Includes input bias and offset current errors.

4 May also be limited by absolute maximum input voltage or by the output swing. See the Absolute Maximum Ratings section and Figure 8 through Figure 11 for details.

5 Internal resistors are trimmed to be ratio matched but to have ±20% absolute accuracy.

6 Common mode is calculated by looking into both inputs. The common-mode impedance at only one input is 18 kΩ.

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