OPAX187 datasheet(8/44 Pages) TI1

8 / 44 page

OPA187, OPA2187, OPA4187

SBOS807B – DECEMBER 2016 – REVISED OCTOBER 2018

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Product Folder Links: OPA187 OPA2187 OPA4187

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(1)

VS / 2 = midsupply.

6.8

Electrical Characteristics: Low-Voltage Operation

at TA = +25°C, VS = ±2.25 V to < ±4 V (VS = +4.5 V to < +8 V), RL = 10 kΩ connected to VS / 2

(1), and V

CM = VOUT = VS / 2

(1)

(unless otherwise noted)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

OFFSET VOLTAGE

VOS

Input offset voltage

±1

±15

μV

TA = –40°C to +125°C

±0.001

±0.02

μV/°C

PSRR

Power-supply rejection ratio

VS = 4.5 V to 36 V,

TA = –40°C to +125°C

±0.01

±1

μV/V

INPUT BIAS CURRENT

Input bias current

VCM = VS / 2

±100

±350

TA = –40°C to +125°C

±5

IOS

Input offset current

±100

±500

TA = –40°C to +125°C

±5

NOISE

Input voltage noise

f = 0.1 Hz to 10 Hz

0.4

µVPP

f = 0.1 Hz to 10 Hz

nVrms

Input voltage noise density

f = 1 kHz

nV/

√Hz

Input current noise density

f = 1 kHz

160

fA/

√Hz

INPUT VOLTAGE RANGE

VCM

Common-mode voltage range

(V–) – 0.1

(V+) – 2

CMRR

Common-mode rejection ratio

(V–) – 0.1 V < VCM < (V+) – 2 V, VS =

±2.25 V

114

130

(V–) < VCM < (V+) – 2 V, VS = ±2.25 V,

TA = –40°C to +125°C

120

137

INPUT IMPEDANCE

ZID

Differential

100 || 6

MΩ || pF

ZIC

Common-mode

6 || 4.2

1012 Ω || pF

OPEN-LOOP GAIN

AOL

Open-loop voltage gain

TA = –40°C to +125°C, VS = ±2.25 V

to ±4 V, (V–) + 0.3 V < VO < (V+) – 0.3

V, RL = 10 kΩ

120

140

FREQUENCY RESPONSE

GBW

Gain-bandwidth product

550

kHz

Slew rate

VO = 1-V step, G = +1

0.2

V/μs

tOR

Overload recovery time

VIN × G = VS

μs

THD+N

Total harmonic distortion + noise

1 kHz, G = +1, VOUT = 1 Vrms, No Load

0.05%

OUTPUT

Voltage output swing from rail

VS = ±2.25 V to ±4 V, No Load

VS = ±2.25 V to ±4 V, RL = 10 kΩ

VS = ±2.25 V to ±4 V, RL = 10 kΩ, TA =

–40°C to +125°C

ISC

Short-circuit current

VS = ±2.25, Sinking

–20

VS = ±2.25, Sourcing

+20

Open-loop output resistance

f = 550 kHz, IO = 0, See Figure 21

1.4

kΩ

CLOAD

Capacitive load drive

See Typical Characteristics

POWER SUPPLY

Quiescent current (per amplifier)

VS = ±2.25 V to VS = ±4 V

100

145

μA

IO = 0 mA, TA = –40°C to +125°C

150

μA

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