SGS Thomson Microelectronics LM348N, LM348D, LM348, LM248D, LM248 Datasheet

LM148

LM248 - LM348

FOUR UA741 QUAD BIPOLAR OPERATIONAL AMPLIFIERS

.LOW SUPPLY CURRENT : 0.53mA/AMPLIFIER

.

CLASS AB OUTPUT STAGE : NO CROSS-

.OVER DISTORTION

.PIN COMPATIBLE WITH LM124

.LOW INPUT OFFSET VOLTAGE : 1mV

.LOW INPUT OFFSET CURRENT : 2nA

.LOW INPUT BIAS CURRENT : 30nA

.GAIN BANDWIDTH PRODUCT : 1.3MHz HIGH DEGREE OF ISOLATION BETWEEN

.AMPLIFIERS : 120dB

OVERLOAD PROTECTION FOR INPUTS AND OUTPUTS

N	D
DIP14	SO14
(Plastic Package)	(Plastic Micropackage)

ORDER CODES

Part Num-	Temperature	Package
ber	Range	N	D
LM148	±55oC, +125oC	•	•
LM248	±40oC, +105oC	•	•
LM348	0oC, +70oC	•	•

Example : LM348D

DESCRIPTION

The LM148 consists of four independent,high gain internally compensated, low power operational amplifiers which have been designed to provide functionalcharacteristics identical to those of the familiar UA741 operational amplifier. In addition the total supply current for all four amplifiers is comparable to the supply current of a single UA741 type op amp. Other features include input offset current and input bias current which are much less than those of a standard UA741. Also, excellent isolation between amplifiers has been achieved by independently biasing each amplifier and using layout techniques which minimize thermal coupling.

The LM148 can be used anywhere multiple UA741 type amplifiers are being used and in applications where amplifier matching or high packing density is required.

PIN CONNECTIONS (top view)

Ou tpu t 1	1	1 4	O u t p u t 4
In ve rt i n g i n p u t 1	2	1 3	I n v e r ti n g i n p u t 4
N o n -i n ve r t i n g i n p u t 1	3	1 2	N o n -i n v e r t i n g i n p u t 4
V +	4	1 1	-
			VC C
C C
N o n - i n v e r t i n g i n p u t 2	5	1 0	N o n -i n v e r t i n g i n p u t 3
I n v e r ti ng i n p u t 2	6	9	I n ve r ti n g i n p u t 3
O u t p u t 2	7	8 Ou tp u t 3

November 1997

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LM148 - LM248 - LM348

SCHEMATIC DIAGRAM

V CC

25 Ω

	Non-inverting inpu t	Inverting
		Input

12k Ω

Output

350k Ω

7.4pF

25 Ω

2.5 k Ω

V CC

V CC

60k Ω

340 Ω

60k Ω

36k Ω

V CC

ABSOLUTE MAXIMUM RATINGS

Symbol	Parameter	LM148	LM248	LM348	Unit
VCC	Supply Voltage	± 22	± 22	± 22	V
Vid	Differential Input Voltage	±44	± 44	± 44	V
Vi	Input Voltage (note 1)	± 22	± 22	± 22	V
Ptot	Power Dissipation	500	500	500	mW
	Output Short-circuit Duration (note 2)		Infinite
Toper	Operating Free-air Temperature Range	±55, +125	±40, +105	0, +70	oC
Tstg	Storage Temperature Range	±65, +150	±65, +150	±65, +150	oC

No tes : 1.	F or suppl y volt age less than maxi mum value, t he absol ut e maxi mum i nput volt age i s equal to t he suppl y
	volt age.
2.	Any of the ampl if i er output s can be short ed to ground i ndefi nit ely ; however, more than one s houl d not be
	si mult aneousl y shorted as the maxi mum juncti on t emperature wi l l be exceeded.

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LM148 - LM248 - LM348

ELECTRICAL CHARACTERISTICS

VCC = ±15V, Tamb = 25oC (unless otherwise specified)

Symbol			Parameter		LM148 - LM248 - LM348
					Min.	Typ.	Unit
							Max.
Vio	Input Offset Voltage (RS ≤ 10kΩ)						mV
	Tamb	= 25oC				1	5
	Tmin.	≤ Tamb	≤ Tmax.				6
Iio	Input Offset Current						nA
	Tamb	= 25oC				2	25
	Tmin.	≤ Tamb ≤ Tmax.					75
Iib	Input Bias Current						nA
	Tamb	= 25oC	≤ Tmax.			30	100
	Tmin.	≤ Tamb					300
Avd	Large Signal Voltage Gain (Vo = ±10V, RL = 2kΩ)						V/mV
	Tamb	= 25oC			50	160
	Tmin.	≤ Tamb	≤ Tmax.		25
SVR	Supply Voltage Rejection Ratio (RS ≤ 10kΩ)						dB
	Tamb	= 25oC	≤ Tmax.		77	100
	Tmin.	≤ Tamb			77
ICC	Supply Current, all Amp, no Load						mA
	Tamb	= 25oC	≤ Tmax.			2.1	3.6
	Tmin.	≤ Tamb					4.8
Vicm	Input Common Mode Voltage Range						V
	Tamb	= 25oC			±12
	Tmin.	≤ Tamb	≤ Tmax.		±12
CMR	Common Mode Rejection Ratio (RS ≤ 10kΩ)						dB
	Tamb	= 25oC			70	110
	Tmin.	≤ Tamb	≤ Tmax.		70
IOS	Output Short-circuit Current						mA
	Tamb = 25oC				10	25	35
± Vopp	Output Voltage Swing						V
	Tamb = 25oC			RL = 10kΩ	12	13
				RL = 2kΩ	10	12
	Tmin. ≤ Tamb ≤ Tmax.			RL = 10kΩ	12
				RL = 2kΩ	10
SR	Slew Rate (VI = ±10V, RL = 10kΩ, CL = 100pF,				0.25	0.5	V/μs
	unity Gain)
tr	Rise Time (VI = ±10V, RL = 10kΩ, CL = 100pF,						μs
	unity Gain)					0.3
KOV	Overshoot (VI = ±10V, RL = 10kΩ, CL = 100pF,					5	%
	unity Gain)
RI	Input Resistance				0.8	2.5	MΩ
GBP	Gain Bandwidth Product (VI = 10 mV, RL = 10kΩ,						MHz
	CL = 100pF, f = 100kHz)				0.7	1.3
THD	Total Harmonic Distortion (f = 1kHz, Av = 20dB,						%
	RL = 10kΩ, CL = 100pF, Vo = 2Vpp)					0.08
en	Equivalent Input Noise Voltage						nV
	(f = 1kHz, Rs = 100Ω)					40	√```Hz
Vo1/Vo2	Channel Separation					120	dB

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