OPA2320SAIDGST datasheet(4/37 Pages) NSC

Part #	OPA2320SAIDGST

Description	Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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OPA320, OPA2320

OPA320S, OPA2320S

SBOS513E – AUGUST 2010 – REVISED JUNE 2013

www.ti.com

ELECTRICAL CHARACTERISTICS: VS = +1.8V to +5.5V or ±0.9V to ±2.75V (continued)

Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.

At TA = +25°C, RL = 10kΩ connected to VS/2, VCM = VS/2, VOUT = VS/2, and SHDN x = VS+, unless otherwise noted.

OPA320, OPA320S, OPA2320, OPA2320S

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

OUTPUT

RL = 10kΩ

10

20

mV

Voltage output swing from

VO

both rails

RL = 2kΩ

25

35

mV

RL = 10kΩ

30

mV

Over temperature

RL = 2kΩ

45

mV

Short-circuit current

ISC

VS = 5.5V

±65

mA

Capacitive load drive

CL

See Typical Characteristics

Open-loop output resistance

RO

IO = 0mA, f = 1MHz

90

Ω

SHUTDOWN(3)

All amplifiers disabled, SHDN = V–

0.1

0.5

μA

Quiescent current per amplifier

IQSD OPA2320S only, SHDN A = VS–, SHDN B = VS+

1.6

mA

OPA2320S only, SHDN A = VS+, SHDN B = VS–

1.6

mA

High-level input voltage

VIH

Amplifier enabled, VS– + 0.7 [(VS+) + |VS–|]

0.7 × VS+

5.5

V

Low-level input voltage

VIL

Amplifier disabled, VS– + 0.3 [(VS+) + |VS–|]

0.3 × VS+

V

G = 1, VOUT = 0.1 × VS/2, full shutdown

(5)

20

μs

Amplifier enable time(4)

tON

OPA2320S only, partial shutdown(5)

6

Amplifier disable time(4)

tOFF

G = 1, VOUT = 0.1 × VS/2

3

μs

VIH = 5V

0.13

μA

SHDN pin input bias current (per pin)

VIL = 0V

0.04

μA

POWER SUPPLY

Specified voltage range

VS

1.8

5.5

V

Quiescent current per amplifier

IQ

OPA320, OPA320S

IO = 0mA, VS = +5.5V

1.5

1.75

mA

Over temperature

IO = 0mA, VS = +5.5V

1.85

mA

OPA2320, OPA2320S

IO = 0mA, VS = +5.5V

1.45

1.6

mA

Over temperature

IO = 0mA, VS = +5.5V

1.7

mA

Power-on time

V+ = 0V to 5V, to 90% IQ level

28

μs

TEMPERATURE

Specified range

–40

+125

°C

Operating range

–40

+150

°C

(3)

Specified by design and characterization; not production tested.

(4)

Disable time (tOFF) and enable time (tON) are defined as the time between the 50% point of the signal applied to the SHDN pin and the

point at which the output voltage reaches the 10% (disable) or 90% (enable) level.

(5)

Full shutdown refers to the dual OPA2320S having both A and B channels disabled (SHDN A = SHDN B = VS–). For partial shutdown,

only one SHDN pin is exercised; in this mode, the internal biasing and oscillator remain operational and the enable time is shorter.

4

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Product Folder Links: OPA320 OPA2320 OPA320S OPA2320S

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