ST LMV321, LMV358, LMV324 User Manual

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Features

■ Operating range from V

■ Rail-to-rail input and output

■ Extended V

(VDD - 0.2 V to VCC + 0.2 V)

icm

■ Low supply current (145 µA)

■ Gain bandwidth product (1 MHz)

■ ESD tolerance (2 kV)

■ Latch-up immunity

■ Available in SOT23-5 micropackage

= 2.7 V to 6 V

CC

LMV321-LMV358-LMV324

Low cost low power input/output rail-to-rail

operational amplifiers

LMV321ILT

(SOT23-5)

Non Inverting Input

VDD

Inverting Input

1

1 2

2

3

LMV321RILT

(SOT23-5)

5

VCC

+

+ _

_

Output

4

Applications

■ Two-cell battery-powered systems

■ Battery-powered electronic equipment

■ Cordless phones

■ Personal medical care (glucose meter)

■ Laptops

■ PDAs

Description

The LMV321/358/324 family (single, dual and quad) answers the need for low cost, general purpose operational amplifiers. They oper ate with voltages as low as 2.7 V and feature both input and output rail-to-rail, 145 µA con sumption current and 1 MHz gain bandwidth product (GBP).

With a such low consumption and a sufficient GBP for many applications, these op-amps are very well-suited for any kind of battery-supplied and portable equipment ap plic ation.

The LMV321 is housed in the space-saving 5-pin SOT23-5 package which simplifies the board design (overall dimensio ns are 2.8 mm x 2.9 mm). The SOT23-5 has two pinning configurations to answer all application requirements.

VCC

Output

Non Inverting Input Inverting Input

VDD

1

1 2

2

3

VCC

5

4

LMV358ID/IDT-LMV358IPT

(SO-8, TSSOP-8)

Output 1

Inverting Input 1

Non Inverting Input 1

VDD

1

_

2

+

3

3 4

4

VCC

8

8 7

7

Output 2

_

Inverting Input 2

6

+

Non Inverting Input 2

5

LMV324ID/IDT-LMV324IPT

(SO-14, TSSOP-14)

Output 4

Output 1

Inverting Input 1

Non Inverting Input 1

Non Inverting Input 2

Inverting Input 2

Output 2

VCC

1

_

2

+

3

3 4

4 5

5

+

+ _

_

6

6 7

7

Output 4

14

_

13

Inverting Input 4

+

Non Inverting Input 4

12

VDD

11

11 10

10

Non Inverting Input 3

+

+ _

_

Inverting Input 3

9

Output 3

8

February 2008 Rev 3 1/14

www.st.com

14

Absolute maximum ratings and operating conditions LMV321-LMV358-LMV324

1 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings

Symbol Parameter Value Unit

V

T

V V

oper

T

Supply voltage

CC

Differential input voltage

id

Input voltage VDD-0.3 to VCC+0.3 V

in

Operating free air temperature range -40 to + 125 °C Storage temperature -65 to +150 °C

stg

Maximum junction temperature 150 °C

j

Thermal resistance junction to ambient

SOT23-5

R

thja

SO-8 SO-14 TSSOP8 TSSOP14

Thermal resistance junction to case

SOT23-5

R

thjc

SO-8 SO-14 TSSOP8 TSSOP14

HBM: human body model

ESD

MM: machine model CDM: charged device model Lead temperature (soldering, 10sec) 250 °C Output short-circuit duration see note

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

2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. If V

> ±1 V, the maximum input current must not exceed ±1 mA. In this case (Vid > ±1 V), an input series

id

resistor must be added to limit input current.

3. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous shortcircuits on all amplifiers. All values are typical.

4. Human body model: A 100 pF capacitor is charged to the specified voltage, then discharged through a

1.5 k

Ω resistor between two pins of the device. This is done for all couples of connected pin combinations

while the other pins are floating.

5. Machine model: A 200pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 connected pin combinations while the other pins are floating.

6. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. No value specified for CDM on SOT23-5L package. The value is given for SO and TSSOP packages.

7. Short-circuits from the output to V approximately 48 mA, independent of the magnitude of V simultaneous short-circuits on all amplifiers.

(1)

7V

(2)

(3)

±1 V

250 125 103 120 100

(3)

81 40 31 37 32

(4)

(5)

(6)

can cause excessive heating. The maximum output current is

CC

. Destructive dissipation can result from

CC

2kV

200 V

1.5 kV

(7)

Ω). This is done for all couples of

°C/W

2/14

LMV321-LMV358-LMV324 Absolute maximum ratings and operating conditions

Table 2. Operating conditions

Symbol Parameter Value Unit

V

CC

V

icm

V

icm

T

oper

1. At 25°C, for 2.7 ≤ VCC ≤ 6V, V

2. In full temperature range, both rails can be reached when VCC does not exceed 5.5 V.

Supply voltage 2.7 to 6 V Common mode input voltage range Common mode input voltage range

(1) (2)

VDD -0.2 to VCC + 0.2 V

VDD to V

CC

Operating free air temperature range -40 to + 125 °C

is extended to VDD - 0.2 V, VCC + 0.2 V.

icm

V

3/14

Electrical characteristics LMV321-LMV358-LMV324

2 Electrical characteristics

Table 3. VCC = +2.7V, VDD = 0V, C

connected to VCC/2, T

L & RL

= 25°C (unless otherwise specified)

amb

Symbol Parameter Conditions Min. Typ. Max. Unit

V

= V

V

ΔV

Input offset voltage

io

Input offset voltage drift 2 µV/°C

io

I

Input offset current

io

Input bias current

I

ib

icm

T

min

V

icm

T

min

V

icm

T

min

CMR Common mode rejection ratio 0 ≤ V

SVR Supply voltage rejection ratio V

A

Large signal voltage gain

vd

icm

V

out

R RL = 2kΩ

V

= 100mV

id

T

V

High level output voltage

OH

min

RL = 10kΩ RL = 2kΩ

V

= -100mV

id

T

V

Low level output voltage

OL

min

RL = 10kΩ R

= VCC/2

out

≤ T

amb

max

= V ≤ T

icm

= VCC/2

out

≤ T

amb

= VCC/2

out

≤ T

amb

≤ V

CC

(1)

max

(1)

max

55 85 dB = VCC/2 70 80 dB = 0.5V to 2.2V

= 10kΩ

L

≤ T

amb

≤ T

max

8070100

2.6

2.55

≤ T

amb

max

= 2kΩ

L

0.1 3 6

19

25

10 50

85

88

2.65

2.6

15 50

90

100

Output source current

I

Output current

o

I

Supply current (per amplifier)

CC

GBP Gain bandwidth product

SR Slew rate

φm Phase margin R

= 100mV, VO = V

id

DD

Output sink current

= -100mV, VO = V

V

id

= VCC/2

V

out

= 1, no load

A

VCL

T

≤ T

amb

≤ T

max

min

= 10kΩ, CL = 100pF,

R

L

CC

f = 100kHz

= 600Ω, CL = 100pF,

R

L

= 1

A

V

= 600Ω, CL = 100pF 44 Degrees

L

5

46

145 200

1MHz

0.35 V/µs

230

V

en Input voltage noise 40 nV/√Hz

THD Total harmonic distortion 0.01 %

1. Maximum values include unavoidable inaccuracies of the industrial tests.

mV

nA

dB

V

mV

mA

µA

4/14

LMV321-LMV358-LMV324 Electrical characteristics

Table 4. VCC = +5V, VDD = 0V, C

connected to VCC/2, T

L & RL

= 25°C (unless otherwise specified)

amb

Symbol Parameter Conditions Min. Typ. Max. Unit

V

= V

V

ΔV

Input offset voltage

io

Input offset voltage drift 2 µV/°C

io

Input offset current

I

io

I

Input bias current

ib

icm

T

min

V

icm

T

min

V

icm

T

min

CMR Common mode rejection ratio 0 ≤ V

SVR Supply voltage rejection ratio V

A

Large signal voltage gain

vd

icm

V

out

R RL = 2kΩ

= VCC/2

out

≤ T

amb

max

= V ≤ T

icm

= VCC/2

out

≤ T

amb

= VCC/2

out

≤ T

amb

≤ V

CC

(1)

max

(1)

max

65 95 dB

= VCC/2 70 90 dB

= 0.5V to 4.5V

= 10kΩ

L

85 77

0.1 3 6

19

25

16 63

95

97 93

Vid = 100mV

≤ T

amb

≤ T

max

4.85

4.8

4.95

4.91

40 80

180 200

T

V

High level output voltage

OH

min

RL = 10kΩ RL = 2kΩ

V

= -100mV

id

T

V

Low level output voltage

OL

min

RL = 10kΩ RL = 2kΩ

Output source current

I

Output current

o

I

Supply current (per amplifier)

CC

GBP Gain bandwidth product

SR Slew rate

φm Phase margin R

Vid = 100mV, VO = V

DD

Output sink current

Vid = -100mV, VO = V

= VCC/2

V

out

= 1, no load

A

VCL

T

≤ T

amb

≤ T

max

min

= 10kΩ, CL = 100pF,

R

L

CC

f = 100kHz

= 600Ω, CL = 100pF,

R

L

A

= 1

V

= 600Ω, CL = 100pF 48 Degrees

L

7

48

162 220

1.3 MHz

0.45 V/µs

250

en Input voltage noise 40 nV/√Hz

THD Total harmonic distortion 0.01 %

1. Maximum values include unavoidable inaccuracies of the industrial tests.

mV

nA

dB

V

mV

mA

µA

5/14