TL32088

DIFFERENTIAL ANALOG BUFFER AMPLIFIER

FOR THE TLC320AD58

SLAS123B – MARCH 1995 – REVISED NOVEMBER 1995

2

POST OFFICE BOX 655303

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Duration of short-circuit current at or below 25

°C (output shorted to GND)

unlimited

. . . . . . . . . . . . . . . . . . . . .

625 mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. All voltage values, except differential voltage, are with respect to GND.

2. Differential voltage is at the noninverting input with respect to the inverting input.

3. All input voltage values must not exceed VCC.

4. Derating factor above TA = 25°C is 10 mW/°C.

recommended operating conditions

MIN

NOM

MAX

UNIT

Supply voltage, AVCC

4.75

5

5.25

V

Input voltage range, VI (see Note 5)

1.1

3.9

V

Operating free-air temperature, TA

0

70

°C

NOTE 5: The output voltage is undetermined when the input voltage exceeds recommended input voltage range.

(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIO

Input offset voltage

VIC = 2.5 V,

TA = 25°C

1

6

mV

VIO

Input offset voltage

IC

,

VO = 2.5 V (AMP L1, R1)

TA = 0°C to 70°C

7.5

mV

IIO

Input offset current

VIC = 2.5 V,

TA = 25°C

5

100

nA

IIO

Input offset current

IC

,

VO = 2.5 V (AMP L1, R1)

TA = 0°C to 70°C

150

nA

IIB

Input bias current

VIC = 2.5 V,

TA = 25°C

20

150

nA

IIB

Input bias current

IC

,

VO = 2.5 V (AMP L1, R1)

TA = 0°C to 70°C

250

nA

VIC

Common mode input voltage

VO ≤ 7 5 mV (AMP L1 R1)

TA = 25°C

0.9

4.1

V

VIC

Common-mode input voltage

VO ≤ 7.5 mV (AMP L1, R1)

TA = 0°C to 70°C

1.1

3.9

V

VOM+

Maximum positive-peak output voltage

4.4

V

VOM–

Maximum negative-peak output voltage

0.6

V

Avd

Differential voltage amplification

VO = 2.5 V ± 1 V (AMP L1, R1) TA = 25°C

60

dB

CMRR

Common-mode rejection ratio

VO = 2.5 V ± 1 V (AMP L1, R1) TA = 25°C

85

dB

Vref

Reference voltage

2.4

2.5

2.6

V

EG

Gain error

See Note 6

±3%

ro

Output resistance

TA = 25°C

50

Ω

ICC

Supply current (both channels)

VO = 2 5 V

No load

TA = 25°C

17

20

mA

ICC

Supply current (both channels)

VO = 2.5 V,

No load

TA = 0°C to 70°C

25

mA

NOTE 6: Gain error is between OUT L and FLTL 1, OUT R and FLTR 1.