Datasheet MC1776CD, MC1776CP1 Datasheet (Motorola)

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Order this document by MC1776C/D



This extremely versatile operational amplifier features low power
consumption and high input impedance. In addition, the quiescent currents
within the device may be programmed by the choice of an external resistor
value or current source applied to the I

input. This allows the amplifier’s

set

characteristics to be optimized for input current and power consumption
despite wide variations in operating power supply voltages.

• ±1.2 V to ±18 V Operation

• Wide Programming Range

• Offset Null Capability

• No Frequency Compensation Required

• Low Input Bias Currents

• Short Circuit Protection

Resistive Programming

(See Figure 1)

R

to Ground R

set

V

7

CC

2

–

3

+

4

Typical R

VCC, VEEI

±6.0 V

±10 V
±12 V
±15 V

V

EE

set

6

8

R

set

VCC – 0.6

I

=

set

Values

set

= 1.5 µAI

3.6 MΩ

6.2 MΩ

7.5 MΩ
10 MΩ

R

set

= 15 µA

set

360 kΩ
620 kΩ
750 kΩ

1.0 MΩ

VCC, VEEI

Active Programming

FET Current Source Bipolar Current Source

to Negative Supply

set

(Recommended for supply voltage

less than ±6.0 V)

V

7

CC

2

–

3

+

4

±1.5 V
±3.0 V
±6.0 V

±15 V

V

EE

6

8

R

set

I

set

Typical R

= 1.5 µAI

set

1.6 MΩ

3.6 MΩ

7.5 MΩ
20 MΩ

VCC – 0.6 – V

=

Values

set

R

set

set

= 15 µA

160 kΩ
360 kΩ
750 kΩ

2.0 MΩ

EE

PROGRAMMABLE

OPERATIONAL AMPLIFIER

SEMICONDUCTOR

TECHNICAL DATA

8

1

P1 SUFFIX

PLASTIC PACKAGE

CASE 626

8

1

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

PIN CONNECTIONS

Input

Offset Null

Invert

Noninvert

V

EE

1

2

–

+

3

4

8

I

set

7

V

CC

6

Output

5

Offset Null

7

V

2

3

Pins not shown are not connected.

CC

–

+

8

V

EE

6

4

V

EE

V

G

MOTOROLA ANALOG IC DEVICE DATA

7

2

–

3

+

8

R

6

4

V

EE

Q

V

B

V

EE

MC1776CD
MC1776CP1

 Motorola, Inc. 1996 Rev 5

ORDERING INFORMATION

Device

(Top View)

Operating

Temperature Range

TA = 0° to +70°C

Package

SO–8

Plastic DIP

1

MC1776C

MAXIMUM RATINGS (T

Power Supply Voltages V
Differential Input Voltage V
Common Mode Input Voltage V

VCC and |VEE| t 15 V V

VCC and |VEE| w 15 V ±15
Offset Null to VEE Voltage V
Programming Current I
Programming Voltage V

(Voltage from I
Output Short Circuit Duration (Note 1) t
Operating Temperature Range T
Storage Temperature Range T
Junction Temperature T

NOTE 1. May be to ground or either supply voltage. Rating applies up to a case temperature of +125°C

or ambient temperature of +70°C and I

set

= +25°C, unless otherwise noted.)

A

Rating Symbol Value Unit

CC,VEE

ID

ICM

off–VEE

set

T erminal to Ground) to V

≤ 30 µA.

set

set

SC

A

stg

J

±18 Vdc
±30 Vdc

Vdc

CC,VEE

±0.5 Vdc

500 µA

(VCC –2.0 V) Vdc

CC

Indefinite sec

0 to +70 °C

–65 to +150 °C

150 °C

Representative Schematic Diagram

8

I

set

7

V

CC

2

Inputs

3

1

Offset Null

5

–

+

30 pF

10 k

10 k

2.0 k

100

100

50

50

100

4

V

6

Output

EE

V oltage Offset Null Circuit Transient Response Test Circuit

7

V

7

V

2

3

8

R

set

CC

–

+

1

4

5

100 k

6

V

EE

2

3

V

8

in

R

set

CC

–

+

4

V

EE

6

C

L

V

O

R

L

Pins not shown are
not connected.

2

MOTOROLA ANALOG IC DEVICE DATA

MC1776C

ELECTRICAL CHARACTERISTICS (V

Characteristic Symbol Min Typ Max Unit

Input Offset Voltage (RS ≤ 10 kΩ) V

TA = +25°C – 2.0 6.0

T

* ≤ TA ≤ T

low

Offset Voltage Adjustment Range V
Input Offset Current I

TA = +25°C – 0.7 6.0

TA = T

high

TA = T

low

Input Bias Current I

TA = +25°C – 2.0 10

TA = T

high

TA = T

low

Input Resistance r
Input Capacitance c
Input Voltage Range V

T

≤ TA ≤ T

low

Large Signal Voltage Gain A

RL ≥ 75 kΩ, VO = ±1.0 V , TA = +25°C 25 k 200 k –

RL ≥ 75 kΩ, VO = ±1.0 V , T
Output Voltage Swing V

RL ≥ 75 kΩ, T
Output Resistance r
Output Short Circuit Current I
Common Mode Rejection CMR dB

RS ≤ 10 kΩ, T
Supply Voltage Rejection Ratio PSRR µV/V

RS ≤ 10 kΩ, T
Supply Current ICC, I

TA = +25°C – 13 20

T

≤ TA ≤ T

low

Power Dissipation P

TA = +25°C – 78 120

T

≤ TA ≤ T

low

Transient Response (Unity Gain)

Vin = 20 mV, RL ≥ 5.0 kΩ, CL = 100 pF

Rise Time t
Overshoot os – 0 – %

Slew Rate (RL ≥ 5.0 kΩ) S

*T

= 0°CT

low

* – – 7.5

high

high

≤ TA ≤ T

low

≤ TA ≤ T

low

low

low

high

high

high

≤ TA ≤ T

≤ TA ≤ T

= +70°C

high

high

high

= +3.0 V, VEE = –3.0 V, I

CC

high

= 1.5 µA, TA = +25°C, unless otherwise noted.*)

set

IO

IOR

IO

IB

i

i

ID

VOL

O

o

SC

EE

D

TLH

R

– 9.0 – mV

– – 6.0
– – 10

– – 10
– – 20

– 50 – MΩ
– 2.0 – pF

+1.0 – –

25 k – –

±2.0 ±2.4 –

– 5.0 – kΩ
– 3.0 – mA

70 86 –

– 25 200

– – 25

– – 150

– 3.0 – µs

– 0.03 – V/µs

mV

nA

nA

V

V/V

V

µA

µW

MOTOROLA ANALOG IC DEVICE DATA

3

MC1776C

ELECTRICAL CHARACTERISTICS (V

Characteristic Symbol Min Typ Max Unit

Input Offset Voltage (RS ≤ 10 kΩ) V

TA = +25°C – 2.0 6.0

T

* ≤ TA ≤ T

low

Offset Voltage Adjustment Range V
Input Offset Current I

TA = +25°C – 2.0 25

TA = T

high

TA = T

low

Input Bias Current I

TA = +25°C – 15 50

TA = T

high

TA = T

low

Input Resistance r
Input Capacitance c
Input Voltage Range V

T

≤ TA ≤ T

low

Large Signal Voltage Gain A

RL ≥ 5.0 kΩ, VO = ±1.0 V , TA = +25°C 25 k 200 k –

RL ≥ 5.0 kΩ, VO = ±1.0 V , T
Output Voltage Swing V

RL ≥ 5.0 kΩ, T
Output Resistance r
Output Short Circuit Current I
Common Mode Rejection CMR dB

RS ≤ 10 kΩ, T
Supply Voltage Rejection Ratio PSRR µV/V

RS ≤ 10 kΩ, T
Supply Current ICC, I

TA = +25°C – 130 170

T

≤ TA ≤ T

low

Power Dissipation P

TA = +25°C – 780 1020

T

≤ TA ≤ T

low

Transient Response (Unity Gain)

Vin = 20 mV, RL ≥ 5.0 kΩ, CL = 100 pF

Rise Time t
Overshoot os – 5.0 – %

Slew Rate (RL ≥ 5.0 kΩ) S

*T

= 0°CT

low

* – – 7.5

high

high

≤ TA ≤ T

low

≤ TA ≤ T

high

high

high

low

≤ TA ≤ T

low

≤ TA ≤ T

low

= +70°C

high

high

high

= +3.0 V, VEE = –3.0 V, I

CC

high

= 15 µA, TA = +25°C, unless otherwise noted.*)

set

IO

IOR

IO

IB

i

i

ID

VOL

O

o

SC

EE

D

TLH

R

– 18 – mV

– – 25
– – 40

– – 50
– – 100

– 5.0 – MΩ
– 2.0 – pF

±1.0 – –

25 k – –

±2.0 ±2.1 –

– 1.0 – kΩ
– 5.0 – mA

70 86 –

– 25 200

– – 180

– – 1080

– 0.6 – µs

– 0.35 – V/µs

mV

nA

nA

V

V/V

V

µA

µW

4

MOTOROLA ANALOG IC DEVICE DATA

MC1776C

ELECTRICAL CHARACTERISTICS (V

Characteristic Symbol Min Typ Max Unit

Input Offset Voltage (RS ≤ 10 kΩ) V

TA = +25°C – 2.0 6.0

T

* ≤ TA ≤ T

low

Offset Voltage Adjustment Range V
Input Offset Current I

TA = +25°C – 0.7 6.0

TA = T

high

TA = T

low

Input Bias Current I

TA = +25°C – 2.0 10

TA = T

high

TA = T

low

Input Resistance r
Input Capacitance c
Input Voltage Range V

T

≤ TA ≤ T

low

Large Signal Voltage Gain A

RL ≥ 75 kΩ, VO = ±10 V, TA = +25°C 50 k 400 k –

RL ≥ 75 kΩ, VO = ±10 V, T
Output Voltage Swing V

RL ≥ 75 kΩ, TA = +25°C ±12 ±14 –

RL ≥ 75 kΩ, T
Output Resistance r
Output Short Circuit Current I
Common Mode Rejection CMR dB

RS ≤ 10 kΩ, T
Supply Voltage Rejection Ratio PSRR µV/V

RS ≤ 10 kΩ, T
Supply Current ICC, I

TA = +25°C – 20 30

T

≤ TA ≤ T

low

Power Dissipation P

TA = +25°C – 780 0.9

T

≤ TA ≤ T

low

Transient Response (Unity Gain)

Vin = 20 mV, RL ≥ 5.0 kΩ, CL = 100 pF

Rise Time t
Overshoot os – 0 – %

Slew Rate (RL ≥ 5.0 kΩ) S

*T

= 0°CT

low

* – – 7.5

high

high

≤ TA ≤ T

low

≤ TA ≤ T

low

high

high

high

low

low

= +70°C

≤ TA ≤ T

≤ TA ≤ T

high

high

high

= +15 V, VEE = –15 V, I

CC

high

= 1.5 µA, TA = +25°C, unless otherwise noted.*)

set

IO

IOR

IO

IB

i

i

ID

VOL

O

o

SC

EE

D

TLH

R

– 9.0 – mV

– – 6.0
– – 10

– – 10
– – 20

– 50 – MΩ
– 2.0 – pF

±10 – –

50 k – –

±10 – –

– 5.0 – kΩ
– 3.0 – mA

70 90 –

– 25 200

– – 35

– – 1.05

– 1.6 – µs

– 0.1 – V/µs

mV

nA

nA

V

V/V

V

µA

mW

MOTOROLA ANALOG IC DEVICE DATA

5

MC1776C

ELECTRICAL CHARACTERISTICS (V

Characteristic Symbol Min Typ Max Unit

Input Offset Voltage (RS ≤ 10 kΩ) V

TA = +25°C – 2.0 6.0

T

* ≤ TA ≤ T

low

Offset Voltage Adjustment Range V
Input Offset Current I

TA = +25°C – 2.0 25

TA = T

high

TA = T

low

Input Bias Current I

TA = +25°C – 15 50

TA = T

high

TA = T

low

Input Resistance r
Input Capacitance c
Input Voltage Range V

T

≤ TA ≤ T

low

Large Signal Voltage Gain A

RL ≥ 5.0 kΩ, VO = ±10 V, TA = +25°C 50 k 400 k –

RL ≥ 75 kΩ, VO = ±10 V, T
Output Voltage Swing V

RL ≥ 5.0 kΩ, TA = +25°C ±10 ±13 –

RL ≥ 75 kΩ, T
Output Resistance r
Output Short Circuit Current I
Common Mode Rejection CMR dB

RS ≤ 10 kΩ, T
Supply Voltage Rejection Ratio PSRR µV/V

RS ≤ 10 kΩ, T
Supply Current ICC, I

TA = +25°C – 160 190

T

≤ TA ≤ T

low

Power Dissipation P

TA = +25°C – – 5.7

T

≤ TA ≤ T

low

Transient Response (Unity Gain)

Vin = 20 mV, RL ≥ 5.0 kΩ, CL = 100 pF

Rise Time t
Overshoot os – 10 – %

Slew Rate (RL ≥ 5.0 kΩ) S

*T

= 0°CT

low

* – – 7.5

high

high

≤ TA ≤ T

low

≤ TA ≤ T

low

high

high

high

low

low

= +70°C

≤ TA ≤ T

≤ TA ≤ T

high

high

high

= +15 V, VEE = –15 V, I

CC

high

= 15 µA, TA = +25°C, unless otherwise noted.*)

set

IO

IOR

IO

IB

i

i

ID

VOL

O

o

SC

EE

D

TLH

R

– 18 – mV

– – 25
– – 40

– – 50
– – 100

– 5.0 – MΩ
– 2.0 – pF

±10 – –

50 k – –

±10 – –

– 1.0 – kΩ
– 12 – mA

70 90 –

– 25 200

– – 200

– – 6.0

– 0.35 – µs

– 0.8 – V/µs

mV

nA

nA

V

V/V

V

µA

µW

6

MOTOROLA ANALOG IC DEVICE DATA

100 M

)

Ω

1.0 M

, SET RESISTOR (R

set

100 k

10 M

Figure 1. Set Current versus Set Resistor

VCC = +15 V
VEE = –15 V
R

to V

set

EE

VCC = +15 V

VCC = +3.0 V
VEE = –3.0 V
R

to V

set

EE

VCC = +3.0 V
VEE = –3.0 V
R

to GND

set

VEE = –15 V
R

set

MC1776C

to GND

µ

( A)

Figure 2. Positive Standby Supply Current

versus Set Current

1000

+3.0 V ≤ VCC ≤ +18 V

≥

VEE ≥ –18 V

–3.0 V

100

10

1.0

10 k

0.1 1.0 10 100
I

, SET CURRENT (µA)

set

Figure 3. Open Loop Gain versus Set Current Figure 4. Input Bias Current versus Set Current

7

10

VCC = +15 V

RL = 75 k

6

10

5

10

, OPEN LOOP GAIN (V/M)

VOL

A

4

10

0.1 1.0 10 100
I

set

VEE = –15 V

VCC = +3.0 V
VEE = –3.0 V

, SET CURRENT (µA)

0.1

POSITIVE STANDBY SUPPLY CURRENT

0.01 0.1 1.0 10 100
I

, SET CURRENT (µA)

set

100

10

1.0

, INPUT BIAS CURRENT (nA)I

IB

0.1

0.01 0.1 1.0 10 100

+3.0 V ≤ VCC ≤ +18 V

≥

VEE ≥ –18 V

–3.0 V

I

, SET CURRENT (µA)

set

Figure 5. Input Bias Current

versus Ambient T emperature

30

24

18

12

, INPUT BIAS CURRENT (nA)I

6.0

IB

0

–60 –40 –20 0 20 40 60 80 100 120 140

I

set

+3.0 V ≤ VCC ≤ +18 V
–3.0 V

= 1.5 µA

T, TEMPERATURE (°C)

≥

VEE ≥ –18 V

I

set

= 1.5 µA

MOTOROLA ANALOG IC DEVICE DATA

Figure 6. Gain Bandwidth Product

versus Set Current

10 M

1.0 M
VCC = +15 V

VEE = –15 V

100 k

10 k

GBW, GAIN BANDWIDTH PRODUCT (Hz)

1.0 k

0.1 1.0 10 100
I

, SET CURRENT (µA)

set

VCC = +3.0 V
VEE = –3.0 V

7

MC1776C

Figure 7. Output Voltage Swing

versus Load Resistance

30

VCC = +15 V
VEE = –15 V

µ

set

= 15

A

RL, LOAD RESISTANCE (Ω)

VCC = +15 V
VEE = –15 V

µ

= 1.5

A

VCC = +3.0 V
VEE = –3.0 V

1.5

I

set

µA ≤

I

24

18

12

, PEAK–TO–PEAK OUTPUT

VOLTAGE SWING (V)

O(pp)

6.0

V

0

1.0 k 10 k 100 k 1.0 M

Figure 9. Output Voltage Swing

versus Supply V oltage

40
36
32
28
24
20
16
12

,OUTPUT VOLTAGE SWING (V)

8.0

O

V

4.0
0

0 2.0 4.0 6.0 8.0 10 12 14 16 18 20

1.5 µA ≤ I
RL = 75 k

VCC, (VEE), SUPPLY VOLTAGES (V)

≤ 15 mA

set

I

= 1.5 µA

set

RL = 5.0 k

I

≤ 15 µA

set

I

= 15 µA

set

RL = 5.0 k

Figure 8. Supply Current

versus Ambient T emperature

150

120

µ

( A)I

I

= 1.5 µA

set

90

VCC = +15 V
VEE = –15 V

60

, SUPPLY CURRENT

30

S

0

I

= 1.5 µA

set

VCC = +15 V
VEE = –15 V

–60 –40 –20 0 20 40 60 80 100 120 140

T, AMBIENT TEMPERATURE (

I

= 1.5 µA

set

VCC = +3.0 V
VEE = –3.0 V

I

= 15 µA

set

VCC = +3.0 V
VEE = –3.0 V

°

C)

Figure 10. Slew Rate

versus Set Current

10

1.0

µ

(V s)

0.1

SR, SLEW RATE

0.01

0.001

0.01 0.1 1.0 10 100

VCC = +15 V
VEE = –15 V

VCC = +3.0 V
VEE = –3.0 V

I

, SET CURRENT (µA)

set

2

Figure 11. Input Noise Voltage

versus Set Current

–13

10

–14

10

f = 1.0 kHz

∆

–15

10

–16

10

–17

V(RMS), MEAN SQUARE VOLTAGE(V /Hz)

10

0.01 0.1 1.0 10 100

1 = Hz

≤

VCC ≤ +18 V

+3.0 V

≥

VEE ≥ –18 V

–3.0 V

I

, SET CURRENT (

set

µ

A)

8

Figure 12. Optimum Source Resistance for

Minimum Noise versus Set Current

100

Ω

10

1.0

OPTIMUM SOURCE RESISTANCE (M )

0.1

0.01 0.1 1.0 10 100
I

, SET CURRENT (µA)

set

MOTOROLA ANALOG IC DEVICE DATA

MC1776C

Figure 13. Wien Bridge Oscillator

22 k

200 k

10 k

3

C

fo =

2

–

MC1776C

+
4

–15 V

R

1

π

RC

2

Ω

R= 16 k
C = 0.01 µF

+15 V

7

8
R

set

R

(for fo = 1.0 kHz)

6

C

Figure 14. Multiple Feedback Bandpass Filter

V

R

R

V

in

C

1

R

2

5

C

2

3

CC

7

–

MC1776C

+

8

4

R

set

Figure 15. Multiple Feedback Bandpass Filter

(1.0 kHz)

2

3

µ

–

MC1776C

+
4

F

+15 V

7

6

Output

8

2.0 M

–15 V

C

R

Input

V

O

1

R

2

for a 1.0 kHz filter
with Q = 10
and A (fo) = 1

C

R

5

R1 = 160 k
R2 = 820
R5 = 300 k
C = 0.01

Figure 16. Gated Amplifier

1 M

10 k

Input

10 k

6

V

O

10 k

Gate

2

3

5.6 k

+15 V

7

–

MC1776C

+

4

8

270 k

Q

–15 V

2.7 M

6

Output

V

CC

15 V

V

EE

For a given:

fo = center frequency
A (fo) = Gain at center frequency
Q = quality factor

To obtain less than 10% error from the operational amplifier:

QO f

o

≤

0.1

where fo and GBW are expressed in Hz. GBW is available from
Figure 6 as a function of Set Current, I

GBW

Choose a value for C, then

Q

R5 =

π

foC

R5

R1 =

2A (fo)

R1,R5

R2 =

4Q2 R1–R5

.

set

MOTOROLA ANALOG IC DEVICE DATA

Figure 17. High Input Impedance Amplifier

10 k

90 k

6

OutputInput

500 k

500 k

50 M

2

3

–

MC1776C

+

8

30 M

50 M

+15 V

7

4

–15 V

9

MC1776C

OUTLINE DIMENSIONS

P1 SUFFIX

PLASTIC PACKAGE

CASE 626–05

ISSUE K

58

NOTE 2

–T–

SEATING
PLANE

H

14

F

–A–

N

D

G

0.13 (0.005) B

A

E

B

D

58

1

4

e

C

A1

B

–B–

C

K

M

A

T

0.25MB

H

A

SS

A0.25MCB

L

J

M

M

M

PLASTIC PACKAGE

M

h

SEATING
PLANE

0.10

D SUFFIX

CASE 751–05

(SO–8)

ISSUE R

X 45

_

q

NOTES:

1. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.

2. PACKAGE CONTOUR OPTIONAL (ROUND OR
SQUARE CORNERS).

3. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

DIM MIN MAX MIN MAX

A 9.40 10.16 0.370 0.400
B 6.10 6.60 0.240 0.260
C 3.94 4.45 0.155 0.175
D 0.38 0.51 0.015 0.020

F 1.02 1.78 0.040 0.070
G 2.54 BSC 0.100 BSC
H 0.76 1.27 0.030 0.050

J 0.20 0.30 0.008 0.012
K 2.92 3.43 0.115 0.135

L 7.62 BSC 0.300 BSC
M ––– 10 ––– 10
N 0.76 1.01 0.030 0.040

NOTES:

C

L

1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.

2. DIMENSIONS ARE IN MILLIMETERS.

3. DIMENSION D AND E DO NOT INCLUDE MOLD
PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.

5. DIMENSION B DOES NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.

MILLIMETERS

DIM MIN MAX

A 1.35 1.75

A1 0.10 0.25

B 0.35 0.49
C 0.18 0.25
D 4.80 5.00
E

H 5.80 6.20
h
L 0.40 1.25

q

INCHESMILLIMETERS

__

3.80 4.00

1.27 BSCe

0.25 0.50
0 7

__

10

MOTOROLA ANALOG IC DEVICE DATA

MC1776C

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
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arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.

MOTOROLA ANALOG IC DEVICE DATA

11

MC1776C

How to reach us:
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INTERNET: http://Design–NET.com 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298

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MOTOROLA ANALOG IC DEVICE DATA

MC1776C/D

*MC1776C/D*