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ELECTRICAL CHARACTERISTICS

OPA698M

SGLS287A – MAY 2005 – REVISED MARCH 2006

ELECTRICAL CHARACTERISTICS (continued)

V

S = ±5 V, VICM = 0 V, RL = 500 Ω, limiter pins open (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Limiter small signal bandwidth

VI = ±2 V, VO < 0.02 Vp-p

600

MHz

Limiter slew rate(6)

125

V/µs

Limiter step response, overshoot

VI = ±2 V

250

mV

Limiter step response, recovery time

VI = ±2 V

1

ns

Linearity guardband(7)

VO = 2 Vp-p, f = 5 MHz

30

mV

(6)

VH slew rate conditions are: VIN = +2 V, G = +2, VL = -2 V, VH = step between 2 V and 0 V. VL slew rate conditions are similar.

(7)

Linearity Guardband is defined for an output sinusoid (f = 5 MHz, VO = 0 VDC ±1 VP-P) centered between the limiter levels (VH and VL).

It is the difference between the limiter level and the peak output voltage where SFDR decreases by 3 dB (see Figure 67).

V

S = 5 V, VICM = 2.5 V, RL = 500 Ω, limiter pins open (unless otherwise noted)

(1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

AC PERFORMANCE (see Figure 48)

VO < 0.2 Vp-p, G = +1, RF = 25 Ω

375

Small signal bandwidth

VO < 0.2 Vp-p, G = +2

200

MHz

VO < 0.2 Vp-p, G = –1

200

Gain-bandwidth product (G

≥ +5)

VO < 0.2 Vp-p

230

MHz

Gain peaking

VO < 0.2 Vp-p, G = +1, RF = 25 Ω

7

dB

Bandwidth for 0.1-dB gain flatness

VO < 0.2 Vp-p

30

MHz

Large signal bandwidth

VO = 2 Vp-p

200

MHz

Slew rate

2 V step

820

V/µs

Rise and fall time

0.2 V step

1.9

ns

Settling time to 0.05%

1 V step

12

ns

Spurious free dynamic range

VO = 2 Vp-p, f = 5 MHz

64

dB

Input noise, voltage noise density

f > 1 MHz

5.7

nV/

√Hz

Input noise, current noise density

f > 1 MHz

2.3

pA/

√Hz

DC PERFORMANCE

TA = 25°C

52

57

Open-loop voltage gain (AVOL)

VO = ±0.4 V

dB

TA = Full range

43

TA = 25°C

±4

±8

Input offset voltage (VIO)

mV

TA = Full range

±12

TA = 25°C

±3

±10

Input bias current (IIB)(2)

µA

TA = Full range

±15

TA = 25°C

±0.4

±3

Input offset current (IIO)

µA

TA = Full range

±4

INPUT

TA = 25°C

50

57

Common-mode rejection ratio (CMRR)

VICM = ±0.5 V, Input referred

dB

TA = Full range

45

VICM

VICM

TA = 25°C

±0.7

±0.8

Common-mode input voltage range

V

(VICR)(3)

VICM

TA = Full range

±0.6

0.32

M

Ω

Input impedance, differential mode

1

pF

(1)

All typical limits are at TA = 25°C unless otherwise specified.

(2)

Current is considered positive out of node.

(3)

CMIR tested as < 3-dB degradation from minimum CMRR at specified limits.

4

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