Analog Devices CMP402GS, CMP402GRU, CMP401GS, CMP401GRU Datasheet

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Analog Devices CMP402GS, CMP402GRU, CMP401GS, CMP401GRU Datasheet

a

23 ns and 65 ns

Low Voltage Comparators

 

 

 

 

 

CMP401/CMP402

 

 

 

FEATURES

23 ns or 65 ns Propagation Delay Single-Supply Operation Compatible with 3 V and 5 V Logic Separate Input and Output Sections Low Power

Wide Input Range: –5 V to +3.9 V

APPLICATIONS

Battery-Operated Instrumentation

Line Receivers

Level Translators

Read Channel Detection

GENERAL DESCRIPTION

The CMP401 and CMP402 are 23 ns and 65 ns quad comparators with separate input and output supplies. Separate supplies enable the input stage to be operated from +3 V to as high as ±6 V. The output can be supplied with either 3 V or 5 V as determined by the interface logic or available supplies. Independent input and output supplies combined with fast propagation make the CMP401 and CMP402 excellent choices for interfacing to portable instrumentation.

The CMP401 and CMP402 are specified over the extended industrial (–40°C to +125°C) temperature range. Both are available in narrow SO-16 surface-mount packages and 16-lead TSSOP.

FUNCTIONAL BLOCK DIAGRAM

VANALOG+ =

VDIGITAL =

0V OR 5V

3V OR 5V

IN+

OUTPUT

IN–

VANALOG– =

+0V OR –5V

NOTE: (VANALOG+ ) – (VANALOG–) 3V

2v

50mV

100

90

10

0%

10nS

CMP401: 20 MHz Noninverting Switching, VIN = ±100 mV

REV. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2002

CMP401/CMP402–SPECIFICATIONS

ELECTRICAL SPECIFICATIONS (@ V+ANA = V+DIG = 5.0 V, VCM = 0.1 V, –40 C TA +125 C, unless otherwise noted.)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

 

 

 

 

 

 

 

INPUT CHARACTERISTICS

 

TA = 25°C

 

 

 

 

Offset Voltage1

VOS

 

 

3

mV

 

VOS

 

 

 

4

mV

Hysteresis

 

 

 

2

 

mV

Input Bias Current

IB

TA = 25°C

 

 

3

µA

 

IB

 

 

 

4

µA

Input Offset Current

IOS

 

 

 

±3

µA

Input Common-Mode Voltage Range

VCM

0.1 V ≤ VCM ≤ 3.9 V

0

 

4.0

V

Common-Mode Rejection

CMRR

60

 

 

dB

Large-Signal Voltage Gain

AVO

RL = 10 kΩ

 

10

 

V/mV

Offset Voltage Drift

∆VOS/∆T

 

 

1

 

µV/°C

OUTPUT CHARACTERISTICS

 

 

 

 

 

 

Output High Voltage

VOH

IOH = –3.2 mA

4.6

 

 

V

Output Low Voltage

VOL

IOL = 3.2 mA

 

 

0.2

V

POWER SUPPLY

 

 

 

 

 

 

Power Supply Rejection Ratio

PSRR

V+ANA and V+DIG 2.7 V to 6 V

60

 

 

dB

Analog Supply Current – CMP401

IANA

TA = 25°C

 

 

6.5

mA

Digital Supply Current – CMP401

IDIG

VO = 0 V, RL = ∞, TA = 25°C

 

 

2.0

mA

Analog Supply Current – CMP401

IANA

VO = 0 V, RL = ∞

 

 

8.0

mA

Digital Supply Current – CMP401

IDIG

 

 

2.25

mA

Analog Supply Current – CMP402

IANA

TA = 25°C

 

 

1.4

mA

Digital Supply Current – CMP402

IDIG

VO = 0 V, RL = ∞, TA = 25°C

 

 

2.0

mA

Analog Supply Current – CMP402

IANA

VO = 0 V, RL = ∞

 

 

1.75

mA

Digital Supply Current – CMP402

IDIG

 

 

2.25

mA

DYNAMIC PERFORMANCE

 

 

 

 

 

 

Propagation Delay – CMP401

tP

100 mV Step with 20 mV OD

 

 

 

 

 

tP

TA = 25°C

 

17

23

ns

 

100 mV Step with 5 mV OD

 

 

 

 

 

tP

TA = 25°C

 

33

 

ns

 

100 mV Step with 20 mV OD

 

 

30

ns

Propagation Delay – CMP402

tP

100 mV Step with 20 mV OD

 

 

 

 

 

 

TA = 25°C

 

54

65

ns

 

tP

100 mV Step with 5 mV OD

 

 

 

 

 

 

TA = 25°C

 

60

 

ns

 

tP

100 mV Step with 20 mV OD

 

 

75

ns

ELECTRICAL SPECIFICATIONS (@ VANA = VDIG = 3.0 V, VCM = 0.1 V, TA = 25 C, unless otherwise noted.)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

 

 

 

 

 

 

 

INPUT CHARACTERISTICS

 

 

 

 

 

 

Offset Voltage1

VOS

 

 

 

4.5

mV

Input Common-Mode Voltage Range

VCM

 

0

 

2.0

V

Input Differential Voltage Range

VDIFF

0.1 V ≤ VCM ≤ 1.9 V

±2.0

 

 

V

Common-Mode Rejection

CMRR

60

 

 

dB

 

 

 

 

 

 

 

OUTPUT CHARACTERISTICS

 

 

 

 

 

 

Output High Voltage

VOH

IOH = –3.2 mA

2.6

 

 

V

Output Low Voltage

VOL

IOL = 3.2 mA

 

 

0.25

V

POWER SUPPLY

 

 

 

 

 

 

Power Supply Rejection Ratio

PSRR

V+ANA and V+DIG 2.7 V to 6 V

60

 

 

dB

Analog Supply Current – CMP401

IANA

VO = 0 V, RL = ∞

 

 

6

mA

Digital Supply Current – CMP401

IDIG

 

 

1

mA

Analog Supply Current – CMP402

IANA

VO = 0 V, RL = ∞

 

 

1.2

mA

Digital Supply Current – CMP402

IDIG

 

 

1

mA

DYNAMIC PERFORMANCE

 

 

 

 

 

 

Propagation Delay – CMP401

tP

100 mV Step with 20 mV OD

 

32

 

ns

Propagation Delay – CMP402

tP

100 mV Step with 20 mV OD

 

70

 

ns

–2–

REV. A

CMP401/CMP402

ELECTRICAL SPECIFICATIONS (@ V±ANA = ±5 V, VDIG = 5.0 V, TA = 25 C, unless otherwise noted.)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

 

 

 

 

 

 

 

INPUT CHARACTERISTICS

 

 

 

 

 

 

Offset Voltage1

VOS

VCM = 0 V

 

 

3

mV

Input Common-Mode Voltage Range

VCM

 

–5.0

 

+4.0

V

Input Differential Voltage Range

VDIFF

–4.9 V VCM 3.9 V

± 8.0

 

 

V

Common-Mode Rejection

CMRR

60

 

 

dB

Offset Voltage Drift

VOS/T

 

 

1

5

V/°C

POWER SUPPLY

 

V± ANA ± 3 V to ± 6 V

 

 

 

 

Power Supply Rejection Ratio

PSRR

60

 

 

dB

Analog Supply Current – CMP401

IANA

VO = 0 V, RL =

 

 

6.5

mA

Digital Supply Current – CMP401

IDIG

 

 

2.0

mA

Analog Supply Current – CMP402

IANA

VO = 0 V, RL =

 

 

2.0

mA

Digital Supply Current – CMP402

IDIG

 

 

2.0

mA

DYNAMIC PERFORMANCE

 

 

 

 

 

 

Propagation Delay – CMP401

tP

100 mV Step with 20 mV OD

 

 

23

ns

Propagation Delay – CMP402

tP

100 mV Step with 20 mV OD

 

 

65

ns

NOTES

1Offset voltage is defined as (VOS+ + VOS–)/2. Specifications subject to change without notice.

REV. A

–3–

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