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ELECTRICAL CHARACTERISTICS: V

OPA861

SBOS338 – AUGUST 2005

R

OPA861ID, IDBV

TYP

MIN/MAX OVER TEMPERATURE

0

°C to

–40

°C to

MIN/

TEST

PARAMETER

CONDITIONS

+25

°C

+25

UNITS

MAX

OTA—Open-Loop (see Figure 30)

AC PERFORMANCE

Bandwidth

73

72

72

70

MHz

min

B

73

MHz

typ

C

Slew Rate

410

395

390

390

V/µs

min

B

Rise Time and Fall Time

4.4

ns

typ

C

Harmonic Distortion

2nd-Harmonic

–67

–55

–54

–54

dB

max

B

3rd-Harmonic

–57

–50

–49

–48

dB

max

B

Base Input Voltage Noise

f > 100kHz

2.4

3.0

3.3

3.4

nV/

√Hz

max

B

Base Input Current Noise

f > 100kHz

1.7

2.4

2.45

2.5

pA/

√Hz

max

B

Emitter Input Current Noise

f > 100kHz

5.2

15.3

16.6

17.5

pA/

√Hz

max

B

85

70

67

65

mA/V

min

A

85

140

145

150

mA/V

max

A

B-Input Offset Voltage

±3

±12

±15

±20

mV

max

A

Average B-Input Offset Voltage Drift

±67

±120

µV/°C

max

B

B-Input Bias Current

±1

±5

±6

±6.6

µA

max

A

Average B-Input Bias Current Drift

±20

±25

nA/°C

max

B

E-Input Bias Current

±30

±100

±125

±140

µA

max

A

Average E-Input Bias Current Drift

±500

±600

nA/°C

max

B

C-Output Bias Current

±15

µA

typ

C

OTA INPUT (see Figure 30)

Most Positive B-Input Voltage

4.2

3.7

3.6

3.6

V

min

B

Least Positive B-Input Voltage

0.8

1.3

1.4

1.4

V

max

B

B-Input Impedance

455 || 2.1

k

Ω || pF

typ

C

Min E-Input Resistance

11.8

14.4

14.9

15.4

Ω

max

B

Max E-Input Resistance

11.8

7.1

6.9

6.7

Ω

min

B

OTA OUTPUT

Maximum E-Output Voltage Compliance

4.2

3.7

3.6

3.6

V

min

A

Minimum E-Output Voltage Compliance

0.8

1.3

1.4

1.4

V

max

A

E-Output Current, Sinking/Sourcing

±8

±7

±6.5

±6.5

mA

min

A

Maximum C-Output Voltage Compliance

4.7

4.0

3.9

3.9

V

min

A

Minimum C-Output Voltage Compliance

0.3

1.0

1.1

1.1

V

max

A

C-Output Current, Sinking/Sourcing

±8

±7

±6.5

±6.5

mA

min

A

C-Output Impedance

54 || 2

k

Ω || pF

typ

C

(1)

Test levels: (A) 100% tested at 25°C. Over temperature limits set by characterization and simulation. (B) Limits set by characterization

and simulation. (C) Typical value only for information.

(2)

Junction temperature = ambient for 25°C specifications.

(3)

Junction temperature = ambient at low temperature limit; junction temperature = ambient + 3°C at high temperature limit for over

temperature specifications.

(4)

Current is considered positive out of node.

5