AD8555(Rev0) 查看數據表（PDF） - Analog Devices

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AD8555
(Rev.:Rev0)

Zero-Drift, Digitally Programmable Sensor Signal Amplifier

Analog Devices 

AD8555

At VDD = 2.7 V, VSS = 0.0 V, VCM = 1.35 V, VO = 1.35 V, −40°C ≤ TA ≤ +125°C, unless otherwise specified.

Table 2.

Parameter

INPUT STAGE

Input Offset Voltage

Input Offset Voltage Drift

Input Bias Current

Input Offset Current

Input Voltage Range

Common-Mode Rejection Ratio

Linearity

Differential Gain Accuracy

Differential Gain Temperature Coefficient

Symbol Conditions

VOS

TCVOS

IB

IOS

TA = 25°C

TA = 25°C

CMRR

VCM = 0.9 V to 1.3 V, AV = 70

VCM = 0.9 V to 1.3 V, AV = 1,280

VO = 0.2 V to 3.4 V

VO = 0.2 V to 4.8 V

Second Stage Gain = 17.5 to 100

Second Stage Gain = 140 to 200

Second Stage Gain = 17.5 to 100

Second Stage Gain = 140 to 200

Min Typ Max Unit

2

10 µV

25 60 nV/°C

12 16

nA

0.2 1

nA

1.5 nA

0.5

1.6 V

80 92

dB

96 112

dB

20

ppm

1000

ppm

0.35

%

0.5

%

15

ppm/°C

40

ppm/°C

RF

RF Temperature Coefficient

DAC

Accuracy

Ratiometricity

Output Offset

Temperature Coefficient

VCLAMP

Input Bias Current

Input Voltage Range

OUTPUT BUFFER STAGE

Buffer Offset

Short-Circuit Current

Output Voltage, Low

Output Voltage, High

POWER SUPPLY

Supply Current

Power Supply Rejection Ratio

DYNAMIC PERFORMANCE

Gain Bandwidth Product

Output Buffer Slew Rate

Settling Time

NOISE PERFORMANCE

Input Referred Noise

Low Frequency Noise

Total Harmonic Distortion

ISC

VOL

VOH

ISY

PSRR

GBP

SR

ts

en p-p

THD

14 18 22 kΩ

700

ppm/°C

AV = 70, Offset Codes = 8 to 248

AV = 70, Offset Codes = 8 to 248

AV = 70, Offset Codes = 8 to 248

0.7

%

50

ppm

5

35 mV

3.3

ppm FS/°C

TA = 25°C, VCLAMP = 2.7 V

200

500

1.25

nA

nA

2.64 V

RL = 10 kΩ to 5 V

RL = 10 kΩ to 0 V

7

4.5

2.64

15 mV

9.5 mA

30 mV

V

VO = 1.35 V, VPOS = VNEG = 1.35 V,

2.0

mA

VDAC Code = 128

AV = 70

109 125

dB

First Gain Stage, TA = 25°C

Second Gain Stage, TA = 25°C

Output Buffer Stage

AV = 70, RL = 10 kΩ, CL = 100 pF

To 0.1%, AV = 70, 4 V Output Step

2

MHz

8

MHz

1.5

MHz

1.2

V/µs

8

µs

TA = 25°C, f = 1 kHz

f = 0.1 Hz to 10 Hz

VIN = 16.75 mV rms, f = 1 kHz, AV = 100

32

0.3

−100

nV/√Hz

µV p-p

dB

Rev. 0 | Page 5 of 28

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