OPA1655DBVT datasheet(6/42 Pages) TI2

6 / 42 page

6.6 Electrical Characteristics

at TA = 25°C, VS = ±18 V, RL = 2 kΩ, and VCM = VOUT = VS/2 (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

AUDIO PERFORMANCE

THD+N

Total harmonic distortion + noise

G = 1, RL = 600 Ω, VO = 3.5 VRMS, f = 1 kHz,

80-kHz measurement bandwidth

0.000029%

–131

G = 1, RL = 600 Ω, VO = 3.5 VRMS, f = 20 kHz,

80-kHz measurement bandwidth

0.0001%

–120

G = 1, RL = 2 kΩ, VO = 3.5 VRMS, f = 1 kHz,

80-kHz measurement bandwidth

0.000029%

–131

G = 1, RL = 2 kΩ, VO = 3.5 VRMS, f = 20 kHz,

80-kHz measurement bandwidth

0.000035%

–129

IMD

Intermodulation distortion

G = 1

VO = 3.5 VRMS

SMPTE/DIN two-tone, 4:1

(60 Hz and 7 kHz)

0.000018%

–135

CCIF twin-tone

(19 kHz and 20 kHz)

0.000020%

–134

FREQUENCY RESPONSE

GBW

Gain-bandwidth product

G = 100

MHz

Unity gain bandwidth

G = 1

MHz

Slew rate

G = –1, 10-V step

V/µs

Full-power bandwidth(1)

VO = 1 VP

3.8

MHz

Overload recovery time

G = –10

100

Channel separation

f = 1 kHz

–135

Settling time

0.01%, G = –1, 10-V step

800

NOISE

Input voltage noise

f = 20 Hz to 20 kHz

0.53

µVRMS

f = 0.1 Hz to 10 Hz

1.9

µVPP

Input voltage noise density

f = 100 Hz

11.8

nV/√Hz

f = 1 kHz

4.3

nV/√Hz

f = 10 kHz

2.9

Input current noise density

f = 1 kHz

fA/√Hz

OFFSET VOLTAGE

VOS

Input offset voltage

VS = ±2.25 V to ±18 V

±0.5

±1

dVOS/dT

Input offset voltage drift(2)

VS = ±2.25 V to ±18 V

TA = –40°C to +125°C

0.3

µV/°C

PSRR

Power-supply rejection ratio

VS = ±2.25 V to ±18 V

0.3

µV/V

INPUT BIAS CURRENT

Input bias current(3)

VCM = 0 V

OPA1655

±10

OPA1656

±10

±20

IOS

Input offset current

VCM = 0 V

OPA1655

±10

OPA1656

±10

±20

INPUT VOLTAGE RANGE

VCM

Common-mode voltage range

(V–)

(V+) – 2.25

CMRR

Common-mode rejection ratio

(V–) ≤ VCM ≤ (V+) – 2.25

106

120

INPUT IMPEDANCE

Differential

100 || 9.1

MΩ || pF

Common-mode

6 || 1.9

1012Ω || pF

OPEN-LOOP GAIN

AOL

Open-loop voltage gain

(V–) + 1.3 V ≤ VO ≤ (V+) – 1.3 V

RL = 600 Ω

134

150

(V–) + 0.5 V ≤ VO ≤ (V+) – 0.5 V

RL = 2 kΩ

134

154

OPA1655, OPA1656

SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022

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