SG1844/SG1845 Series

PRODUCT DA T ABOOK 1996/1997

3

Copyright © 2000

Rev. 1.6c

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG1844/SG1845 with -55°C

≤ T

SG2845 with -25°C

≤ T

Low duty cycle pulse testing

techniques are used which maintains junction and case temperatures equal to the ambient temperature.)

Reference Section

Parameter

Symbol

Test Conditions

Output Voltage

T

Line Regulation

12

≤ V

Load Regulation

1

≤ I

Temperature Stability (Note 4)

Total Output Variation (Note 4)

Line, Load, Temp.

Output Noise Voltage (Note 4)

V

N

10Hz

≤ f ≤ 10kHz, T

Long Term Stability (Note 4)

T

Output Short Circuit

SG3844/45

Units

Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.

SG2844/45

4.95 5.00 5.05 4.95 5.00 5.05 4.90 5.00 5.10

V

620

6

20

620

mV

625

6

25

625

mV

0.2

0.4

0.2

0.4

0.2

0.4

mV/°C

4.90

5.10 4.90

5.10 4.82

5.18

V

50

50

50

µV

525

5

25

525

mV

-30

-100 -180

-30

-100 -180

-30

-100 -180

mA

Oscillator Section

Initial Accuracy (Note 8)

T

Voltage Stability

12V

≤ V

CC

≤ 25V

Temperature Stability (Note 4)

T

MIN

≤ T

A

≤ T

MAX

Amplitude

V

Discharge Current

T

T

Error Amp Section

Input Voltage

V

Input Bias Current

Open Loop Gain

A

VOL

2

≤ V

Unity Gain Bandwidth (Note 4)

T

Power Supply Rejection Ratio

PSRR

12

≤ V

CC

≤ 25V

Output Sink Current

V

Output Source Current

V

V

V

V

V

SG1844/45

47

52

57

47

52

57

47

52

57

kHz

.021

0.21

0.21

%

55

5

%

1.7

1.7

1.7

V

7.8

8.3

9.1

7.5

8.4

9.3

7.5

8.4

9.3

mA

6.8

9.3

7.2

9.5

7.2

9.5

mA

2.45 2.50 2.55 2.45 2.50 2.55 2.42 2.50 2.58

V

-0.3

-1

-0.3

1

-0.3

-2

µA

65

90

65

90

65

90

dB

0.7

1

0.7

1

0.7

1

MHz

60

70

60

70

60

70

dB

26

2

6

26

mA

-0.5

-0.8

-0.5

-0.8

-0.5

-0.8

mA

56

5

6

56

V

0.7

1.1

0.7

1.1

0.7

1.1

V

Supply Voltage Range

Output Current (Peak)

Output Current (Continuous)

Analog Inputs (Pin 2, Pin 3)

Error Amp Output Sink Current

Oscillator Frequency Range

Oscillator Timing Resistor

R

T

Oscillator Timing Capacitor

C

T

Operating Ambient Temperature Range:

SG1844/45

SG2844/45

SG3844/45

RECOMMENDED OPERA TING CONDITIONS

(Note 3)

Parameter

Symbol

Units

Recommended Operating Conditions

Min.

Typ.

Max.

30

V

±1

A

200

mA

02.6

V

5mA

0.1

500

kHz

0.52

150

k

Ω

0.001

1.0

µF

-55

125

°C

-25

85

°C

070

°C

Note 3. Range over which the device is functional.

(Electrical Characteristics continue next page.)