AD8420ARMZ-RL datasheet(4/10 Pages) AD

部件名	AD8420ARMZ-RL

功能描述	Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier

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制造商	AD [Analog Devices]

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4 / 10 page

AD8420

Preliminary Technical Data

Rev. PrD | Page 4 of 4

+VS = +15 V, −VS = −15 V, VREF = 0 V, TA = 25°C, G = 1 to 1000, RL = 20 kΩ, specifications referred to input, unless otherwise noted

Table 3.

Parameter

Conditions

Min

Typ

Max

Unit

COMMON-MODE REJECTION RATIO (CMRR)

VCM = –10 V to +10 V

CMRR DC to 60 Hz

100

dB

CMRR at 1 kHz

dB

NOISE

Voltage Noise

Spectral Density

f = 1 kHz, VDIFF ≤ 100 mV

50

nV/√Hz

Peak to Peak

f = 0.1 Hz to 10 Hz, VDIFF ≤ 100 mV

1.5

µV p-p

Current Noise

Spectral Density

f = 1 kHz

fA/√Hz

Peak to Peak

f = 0.1 Hz to 10 Hz

pA p-p

VOLTAGE OFFSET

Offset

VS = ±5 V to ±15 V

200

µV

Average Temperature Coefficient

TA = −40°C to +85°C

1

µV/°C

Offset RTI vs. Supply (PSR)

dB

INPUTS

Valid for REF & FB pair, as well as +IN & -IN

Input Bias Current1

TA = +25°C

25

40

nA

TA = +85°C

nA

TA = −40°C

nA

Average Temperature Coefficient

TA = −40°C to +85°C

pA/°C

Input Offset Current

TA = +25°C

1

nA

TA = +85°C

nA

TA = −40°C

nA

Average Temperature Coefficient

TA = −40°C to +85°C

pA/°C

Input Impedance

Differential

130||3

MΩ||pF

Common Mode

1000||3

MΩ||pF

Differential Input Operating Voltage

TA = –40°C to +85°C

-1

1

V

Input Operating Voltage (+IN, -IN, or REF)

TA = +25°C

−VS – 0.15

+VS −2.2

V

TA = +85°C

−VS – 0.05

+VS – 1.8

V

TA = –40°C

−VS – 0.2

+VS – 2.7

V

DYNAMIC RESPONSE

Check voltage differential

Small Signal –3 dB Bandwidth

G = 1

250

kHz

G = 10

25

kHz

G = 100

2.5

kHz

G =1000

0.25

kHz

Settling Time 0.01%

10 V step

G = 1

µs

G = 10

µs

G = 100

µs

G = 1000

µs

Slew Rate

Exceeds Bandwidth Limit

V/µs

类似零件编号 - AD8420ARMZ-RL

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Analog Devices	AD8420ARMZ-RL	529Kb / 28P	Wide Supply Range, Micropower, REV. 0
Analog Devices	AD8420ARMZ-RL	553Kb / 27P	Wide Supply Range, Micropower, Rail-to-Rail Instrumentation Amplifier

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