Maxim MAX4275BEESA, MAX4275BDEUA, MAX4275BDESA, MAX4275BCEUA, MAX4275BCESA Datasheet

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19-1407; Rev 3; 8/99

SOT23, Rail-to-Rail, Fixed-Gain

GainAmps/Open-Loop Op Amps

General Description

The MAX4174/MAX4175/MAX4274/MAX4275 GainAmp™ family combines a low-cost Rail-to-Rail® op amp with precision internal gain-setting resistors and VCC / 2 biasing. Factory-trimmed on-chip resistors decrease design size, cost, and layout, and provide 0.1% gain accuracy. Fixed inverting gains from -0.25V/V to -100V/V or noninverting gains from +1.25V/V to +101V/V are available. These devices operate from a single +2.5V to +5.5V supply and consume only 300µA. GainAmp amplifiers are optimally compensated for each gain version, achieving exceptional GBW products up to 23MHz (AV = +25V/V to +101V/V). High-volt- age fault protection withstands ±17V at either input without excessive current draw.

Three versions are available in this amplifier family: single/ dual/quad open-loop, unity-gain stable (MAX4281/ MAX4282/MAX4284); single/dual fixed gain (MAX4174/ MAX4274); and single/dual fixed gain plus internal VCC / 2 bias at the noninverting input (MAX4175/ MAX4275), which simplifies input biasing in single-supply designs. The input common-mode voltage range of the open-loop amplifiers extends from 150mV below the negative supply to within 1.2V of the positive supply. The outputs can swing rail-to-rail and drive a 1kΩ load while maintaining excellent DC accuracy. The amplifier is stable for capacitive loads up to 470pF.

 

 

Applications

Portable Instruments

Smart-Card Readers

Instruments, Terminals,

Infrared Receivers for

and Bar-Code Readers

Remote Controls

Keyless Entry

Low-Side Current-Sense

Photodiode Preamps

Amplifiers

Features

GainAmp Family Provides Internal Precision Gain-Setting Resistors in SOT23 (MAX4174/5)

0.1% Gain Accuracy (RF/RG) (MAX4174/5, MAX4274/5)

54 Standard Gains Available (MAX4174/5, MAX4274/5)

Open-Loop Unity-Gain-Stable Op Amps (MAX4281/2/4)

Rail-to-Rail Outputs Drive 1kΩ Load

Internal VCC / 2 Biasing (MAX4175/MAX4275)

+2.5V to +5.5V Single Supply

300µA Supply Current

Up to 23MHz GBW Product

Fault-Protected Inputs Withstand ±17V

Stable with Capacitive Loads Up to 470pF with No Isolation Resistor

Ordering Information

PART*

TEMP. RANGE

PIN-

TOP

PACKAGE

MARK

 

 

 

 

 

 

MAX4174_EUK-T

-40°C to +85°C

5 SOT23-5

††

MAX4175_EUK-T

-40°C to +85°C

5 SOT23-5

††

Ordering Information continued at end of data sheet.

* Insert the desired gain code (from the Gain Selection Guide) in the blank to complete the part number.

††Refer to the Gain Selection Guide for a list of preferred gains and SOT Top Marks.

Selector Guide appears at end of data sheet.

Pin Configurations

Typical Operating Circuit

 

TOP VIEW

 

 

 

 

 

+5V

 

 

 

 

 

 

 

 

MAX4174

 

 

VCC

0.1μF

OUT

1

5

VCC

 

VCC

 

RB

MAX4175

 

 

RF

 

 

VEE

2

+

 

 

IN+

 

 

 

0.1μF

 

 

 

 

RG

 

RB

OUT

 

 

 

 

IN+

3

4

IN-

INPUT

VEE

 

 

 

 

 

IN-

 

 

 

SOT23-5

 

0.1μF

RG

RF

Pin Configurations continued at end of data sheet.

 

VEE

 

 

Patent pending

GainAmp is a trademark of Maxim Integrated Products. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

________________________________________________________________ Maxim Integrated Products 1

MAX4281/2/4 MAX4274/5, MAX4174/5,

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.

MAX4174/5, MAX4274/5, MAX4281/2/4

SOT23, Rail-to-Rail, Fixed-Gain

GainAmps/Open-Loop Op Amps

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VCC to VEE) ....................................

 

-0.3V to +6V

8-Pin µMAX (derate 4.1mW/°C above +70°C) ............

330mW

Voltage Inputs (IN_)

(VEE - 0.3V) to (VCC + 0.3V)

14-Pin SO (derate 8.3mW/°C above +70°C)

...............

667mW

MAX4281/4282/4284.....................

16-Pin QSOP (derate 8.3mW/°C above +70°C)..........

667mW

MAX4174/4175/4274/4275 (with respect to GND)

...........±17V

Operating Temperature Range ...........................

- 40°C to +85°C

Output Short-Circuit Duration

Continuous to Either VEE or VCC

Maximum Junction Temperature .....................................

 

+150°C

(OUT_).....................................

Storage Temperature Range .............................

- 65°C to +150°C

Continuous Power Dissipation (TA = +70°C)

 

Lead Temperature (soldering, 10sec) .............................

 

+300°C

5-Pin SOT23 (derate 7.1mW/°C above +70°C).............

571mW

 

 

 

8-Pin SO (derate 5.88mW/°C above +70°C).................

471mW

 

 

 

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS—MAX4174/MAX4175/MAX4274/MAX4275 Fixed-Gain

Amplifiers

(VCC = +2.5V to +5.5V, VEE = 0, VIN+ = VIN- = VCC / 2, RL to VCC / 2, RL = open, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

 

 

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

 

 

 

 

Supply Voltage Range

VCC

Guaranteed by PSRR tests

 

2.5

 

5.5

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX4174/MAX4274

 

VCC = 3V

 

 

300

460

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Supply Current

ICC

 

VCC = 5V

 

 

330

510

 

µA

 

 

 

 

 

(per Amplifier)

MAX4175/MAX4275,

 

VCC = 3V

 

 

320

480

 

 

 

 

 

 

 

 

 

 

 

includes VCC / 2 bias resistors

VCC = 5V

 

 

355

530

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RL = 100kΩ

 

 

 

 

 

 

 

 

Input Offset Voltage

 

VOS

 

 

 

 

±0.5

±2.5

 

mV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Offset Voltage Drift

 

 

 

 

 

 

±5

 

 

µV/°C

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Bias Current

IBIAS

IN_+, MAX4174/MAX4274 (Note 2)

 

 

 

±0.05

±10

 

nA

 

 

 

 

 

 

 

 

 

 

 

 

 

Inverting Input Resistance

 

 

AV < 25V/V

 

 

 

 

150

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AV > 25V/V

 

 

 

 

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Noninverting Input

 

MAX4174/MAX4274

 

 

 

 

1000

 

 

Resistance

 

 

 

 

 

 

 

 

 

 

 

 

MAX4175/MAX4275

 

 

 

 

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IN_+ Bias Voltage

 

 

MAX4175/MAX4275, VIN+ = VIN-

 

 

VCC / 2

 

VCC / 2

 

V

 

 

 

 

- 0.25

 

+ 0.25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IN_+ Input Voltage Range

 

 

Guaranteed by functional test (Note 3)

 

 

VEE

 

VCC - 1.2

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

IN_Input Voltage Range

 

 

Guaranteed by functional test

 

 

VEE

 

VCC

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power-Supply Rejection

PSRR

VCC = 2.5V to 5.5V

 

 

70

90

 

 

dB

Ratio

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Closed-Loop Output

ROUT

 

 

 

 

 

0.02

 

 

Ω

Impedance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Short-Circuit Current

 

Shorted to VEE

 

 

 

 

10

 

 

mA

 

 

 

 

 

 

 

 

 

 

Shorted to VCC

 

 

 

 

65

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RL = 100kΩ

VCC - VOH

 

 

 

2

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Swing

VOH/VOL

VOL - VEE

 

 

 

2

8

 

mV

 

 

 

 

 

(Note 4)

RL = 1kΩ

VCC - VOH

 

 

 

150

250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOL - VEE

 

 

 

60

150

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 _______________________________________________________________________________________

SOT23, Rail-to-Rail, Fixed-Gain

GainAmps/Open-Loop Op Amps

ELECTRICAL CHARACTERISTICS—MAX4174/MAX4175/MAX4274/MAX4275 Fixed-Gain

Amplifiers (continued)

(VCC = +2.5V to +5.5V, VEE = 0, VIN+ = VIN- = VCC / 2, RL to VCC / 2, RL = open, TA = TMIN to TMAX, unless otherwise noted. Typical

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

Power-Up Time

 

Output settling to 1%

 

1

 

ms

 

 

 

 

 

 

 

Slew Rate

SR

VCC = 5V, VOUT = 4V step

 

0.7

 

V/µs

 

 

 

 

 

 

 

 

 

Settling Time to Within

 

VCC = 5V, VOUT = 4V step

 

7

 

µs

 

 

 

0.01%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Noise Voltage Density

en

f = 10kHz (Note 5)

 

90

 

nV/√Hz

 

 

 

 

 

 

 

 

 

Input Noise Current Density

in

f = 10kHz

 

4

 

fA/√Hz

 

 

 

 

 

 

 

 

 

Capacitive Load Stability

CLOAD

No sustained oscillations

 

470

 

pF

 

 

 

 

 

 

 

DC Gain Accuracy

 

(VEE + 25mV) < VOUT < (VCC - 25mV),

 

0.1

0.5

%

 

 

 

RL = 100kΩ (Note 6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gain = +1.25V/V

 

1700

 

 

 

 

 

 

 

 

 

 

 

Gain = +3V/V

 

970

 

 

 

 

 

 

 

 

 

-3dB Bandwidth

BW-3dB

Gain = +5V/V

 

970

 

kHz

 

 

 

 

Gain = +10V/V

 

640

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gain = +25V/V

 

590

 

 

 

 

 

 

 

 

 

 

 

Gain = +51V/V

 

330

 

 

 

 

 

 

 

 

 

ELECTRICAL CHARACTERISTICS—MAX4281/MAX4282/MAX4284 Open-Loop Op Amps

(VCC = +2.5V to +5.5V, VEE = 0, VIN+ = VIN- = VCC / 2, RL to VCC / 2, RL = open, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

 

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

Supply Voltage Range

VCC

Guaranteed by PSRR tests

2.5

 

5.5

V

 

 

 

 

 

 

 

 

Supply Current

ICC

VCC = 3V

 

 

290

450

µA

(per Amplifier)

VCC = 5V

 

 

320

500

µA

 

 

 

 

 

 

 

 

 

 

 

Input Offset Voltage

VOS

RL = 100kΩ

 

 

±0.5

±2

mV

 

 

 

 

 

 

 

 

Input Offset Voltage Drift

 

 

 

 

±5

 

µV/°C

 

 

 

 

 

 

 

 

Input Bias Current

IBIAS

 

 

 

±0.05

±10

nA

 

 

 

 

 

 

 

 

Input Offset Current

IOS

 

 

 

±10

±1000

pA

 

 

 

 

 

 

 

 

Input Resistance

RIN

Differential or common mode

 

1000

 

 

 

 

 

 

 

 

 

Input Capacitance

CIN

 

 

 

2.5

 

pF

 

 

 

 

 

 

 

 

Common-Mode Input

CMVR

Guaranteed by CMRR test

VEE - 0.15

 

VCC - 1.2

V

Voltage Range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Common-Mode Rejection

CMRR

VEE - 0.15V ≤ VCM ≤ VCC - 1.2V

 

60

90

 

dB

Ratio

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power-Supply Rejection

PSRR

VCC = 2.5V to 5.5V

 

70

90

 

dB

Ratio

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Closed-Loop Output

ROUT

AV = 1V/V

 

 

0.02

 

Ω

Impedance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX4281/2/4 MAX4274/5, MAX4174/5,

_______________________________________________________________________________________ 3

MAX4174/5, MAX4274/5, MAX4281/2/4

SOT23, Rail-to-Rail, Fixed-Gain

GainAmps/Open-Loop Op Amps

ELECTRICAL CHARACTERISTICS—MAX4281/MAX4282/MAX4284 Open-Loop Op Amps (continued)

(VCC = +2.5V to +5.5V, VEE = 0, VIN+ = VIN- = VCC / 2, RL to VCC / 2, RL = open, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

 

 

 

 

Shorted to VEE

 

 

 

 

mA

Short-Circuit Current

 

 

 

10

 

 

Shorted to VCC

 

 

65

 

mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VEE + 0.05V < VOUT < VCC - 0.1V, RL = 100kΩ

 

 

 

 

 

Large-Signal Voltage Gain

AVOL

90

120

 

dB

VEE + 0.25V < VOUT < VCC - 0.3V, RL = 1kΩ

80

100

 

dB

 

 

 

 

 

RL = 100kΩ

 

VCC - VOH

 

2

8

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Swing

VOH/VOL

 

VOL - VEE

 

2

8

mV

 

 

 

 

 

 

 

 

 

 

 

 

RL = 1kΩ

 

VCC - VOH

 

160

250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOL - VEE

 

60

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gain Bandwidth Product

GBW

 

 

 

 

2

 

MHz

 

 

 

 

 

 

 

 

 

 

Slew Rate

SR

VCC = 5V, VOUT = 4V step

 

 

0.7

 

V/µs

 

 

 

 

 

 

 

 

 

 

 

Settling Time to within 0.01%

 

VCC = 5V, VOUT = 4V step

 

 

7

 

µs

 

 

 

 

 

 

 

 

 

 

Input Noise Voltage Density

en

f = 10kHz

 

 

60

 

nV/√Hz

 

 

 

 

 

 

 

 

 

 

 

Input Noise Current Density

in

f = 10kHz

 

 

1.8

 

fA/√Hz

 

 

 

 

 

 

 

 

 

 

Capacitive Load Stability

CLOAD

No sustained oscillations, AV = 1V/V

 

470

 

pF

 

 

 

 

 

 

 

 

 

 

Power-Up Time

 

Output settling to 1%

 

 

1

 

ms

 

 

 

 

 

 

 

 

 

 

 

Note 1: MAX4174/MAX4175/MAX4281 and MAX4274/MAX4275/MAX4282 and MAX4284 are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.

Note 2: Guaranteed by design.

Note 3: The input common-mode range for IN_+ is guaranteed by a functional test. A similar test is done on the IN_input. See the Applications Information section for more information on the input voltage range of the GainAmp.

Note 4: For AV = -0.5V/V and AV = -0.25V/V, the output voltage swing is limited by the input voltage range. Note 5: Includes noise from on-chip resistors.

Note 6: The gain accuracy test is performed with the GainAmp in noninverting configuration. The output voltage swing is limited by the input voltage range for certain gains and supply voltage conditions. For situations where the output voltage swing is limited by the valid input range, the output limits are adjusted accordingly.

Typical Operating Characteristics

(VCC = +5V, RL = 100kΩ to VCC / 2, small-signal VOUT = 100mVp-p, large-signal VOUT = 1Vp-p, TA = +25°C, unless otherwise noted.)

NORMALIZED GAIN (dB)

LARGE-SIGNAL GAIN vs. FREQUENCY

4

3

2

AV = +1.25V/V

1

0 -1 -2

-3

AV = +2.25V/V

-4 -5

-6

1k 10k 100k 1M

FREQUENCY (Hz)

LARGE-SIGNAL GAIN vs. FREQUENCY

TOC01

4

 

 

 

TOC02

4

3

 

 

 

3

MAX4174

 

 

 

MAX4174

2

 

AV = +2.5V/V

 

2

(dB)

 

 

 

(dB)

1

1

 

 

 

GAIN

0

 

 

 

GAIN

0

NORMALIZED

-1

 

AV = +4V/V

 

NORMALIZED

-1

-2

 

 

-2

 

 

 

-3

 

 

 

-3

 

-4

 

 

 

 

-4

 

-5

 

 

 

 

-5

10M

-6

 

 

 

 

-6

1k

10k

100k

1M

10M

 

FREQUENCY (Hz)

LARGE-SIGNAL GAIN vs. FREQUENCY

 

 

AV = +5V/V

 

MAX4174 TOC03

 

 

 

 

 

 

AV = +9V/V

 

 

1k

10k

100k

1M

10M

FREQUENCY (Hz)

4 _______________________________________________________________________________________

Maxim MAX4275BEESA, MAX4275BDEUA, MAX4275BDESA, MAX4275BCEUA, MAX4275BCESA Datasheet

SOT23, Rail-to-Rail, Fixed-Gain

GainAmps/Open-Loop Op Amps

Typical Operating Characteristics (continued)

(VCC = +5V, RL = 100kΩ to VCC / 2, small-signal VOUT = 100mVp-p, large-signal VOUT = 1Vp-p, TA = +25°C, unless otherwise noted.)

LARGE-SIGNAL GAIN vs. FREQUENCY

 

4

 

 

 

TOC04

4

 

3

 

 

 

3

 

 

 

 

MAX4174

(dB)

2

 

AV = +10V/V

 

2

1

 

 

(dB)

 

 

 

 

1

GAIN

0

 

 

 

GAIN

0

NORMALIZED

-1

 

 

 

NORMALIZED

-1

-2

 

AV = +21V/V

 

-2

-3

 

 

 

 

 

 

-3

 

-4

 

 

 

 

-4

 

-5

 

 

 

 

-5

 

-6

 

 

 

 

-6

 

1k

10k

100k

1M

10M

 

FREQUENCY (Hz)

MAX4174/MAX4175

LARGE-SIGNAL GAIN vs. FREQUENCY

 

 

 

 

TOC05

4

 

 

 

 

3

 

 

 

 

MAX4174

 

 

AV = +25V/V

 

2

 

 

 

 

(dB)

1

 

 

 

 

GAIN

0

 

 

 

 

NORMALIZED

-1

 

 

AV = +50V/V

 

-2

 

 

 

 

-3

 

 

 

 

 

-4

 

 

 

 

 

-5

 

 

 

 

 

-6

1k

10k

100k

1M

10M

 

FREQUENCY (Hz)

LARGE-SIGNAL GAIN vs. FREQUENCY

 

 

AV = +51V/V

MAX4174 TOC06

 

 

 

 

 

AV = +100V/V

 

 

1k

10k

100k

1M

10M

 

 

FREQUENCY (Hz)

 

 

SMALL-SIGNAL GAIN vs. FREQUENCY

 

4

 

 

 

TOC07

4

 

3

 

 

 

3

 

 

 

 

MAX4174

(dB)

2

 

AV = +1.25V/V

2

 

 

(dB)

1

 

 

 

1

GAIN

0

 

 

 

GAIN

0

NORMALIZED

-1

 

 

 

NORMALIZED

-1

-2

 

 

 

-2

-3

 

AV = +2.25V/V

 

-3

 

-4

 

 

 

-4

 

 

 

 

 

 

-5

 

 

 

 

-5

 

-6

10k

100k

1M

10M

-6

 

1k

 

FREQUENCY (Hz)

SMALL-SIGNAL GAIN vs. FREQUENCY

 

 

 

 

TOC08

4

 

 

 

 

3

 

 

 

 

MAX4174

 

 

AV = +2.5V/V

 

2

 

 

 

(dB)

1

 

 

 

 

 

 

 

 

GAIN

0

 

 

 

 

NORMALIZED

-1

 

 

AV = +4V/V

 

-2

 

 

 

 

-3

 

 

 

 

 

-4

 

 

 

 

 

-5

 

 

 

 

 

-6

1k

10k

100k

1M

10M

 

 

 

FREQUENCY (Hz)

 

 

 

SMALL-SIGNAL GAIN vs. FREQUENCY

 

 

AV = +5V/V

 

MAX4174 TOC09

 

 

 

 

 

 

AV = +9V/V

 

 

1k

10k

100k

1M

10M

 

 

FREQUENCY (Hz)

 

 

SMALL-SIGNAL GAIN vs. FREQUENCY

 

4

 

 

 

TOC10

4

 

3

 

 

 

3

 

 

 

 

MAX4174

(dB)

2

 

AV = +10V/V

 

2

1

 

 

(dB)

1

 

 

 

GAIN

0

 

 

 

GAIN

0

NORMALIZED

-1

 

 

 

NORMALIZED

-1

-2

 

 

 

-2

-3

 

AV = +21V/V

 

-3

 

-4

 

 

 

-4

 

 

 

 

 

 

-5

 

 

 

 

-5

 

-6

 

 

 

 

-6

 

1k

10k

100k

1M

10M

 

 

 

 

FREQUENCY (Hz)

 

 

 

SMALL-SIGNAL GAIN vs. FREQUENCY

 

 

 

 

TOC11

4

 

 

 

 

3

 

 

 

 

MAX4174

 

 

AV = +25V/V

 

2

 

 

 

(dB)

1

 

 

 

 

 

 

 

 

GAIN

0

 

 

 

 

NORMALIZED

-1

 

 

 

 

-2

 

 

AV = +50V/V

 

-3

 

 

 

 

-4

 

 

 

 

 

 

 

 

 

 

-5

 

 

 

 

 

-6

1k

10k

100k

1M

10M

 

 

 

FREQUENCY (Hz)

 

 

 

SMALL-SIGNAL GAIN vs. FREQUENCY

 

 

 

AV = +51V/V

MAX4174 TOC12

 

 

 

 

 

 

AV = +100V/V

 

 

1k

10k

100k

1M

10M

FREQUENCY (Hz)

MAX4281/2/4 MAX4274/5, MAX4174/5,

_______________________________________________________________________________________ 5

MAX4174/5, MAX4274/5, MAX4281/2/4

SOT23, Rail-to-Rail, Fixed-Gain

GainAmps/Open-Loop Op Amps

Typical Operating Characteristics (continued)

(VCC = +5V, RL = 100kΩ to VCC / 2, small-signal VOUT = 100mVp-p, large-signal VOUT = 1Vp-p, TA = +25°C, unless otherwise noted.)

MAX4174/MAX4175

TOTAL HARMONIC DISTORTION vs. FREQUENCY

 

0

 

 

TOC13

 

VOUT = 1Vp-p

 

 

-20

 

 

MAX4174

 

 

 

 

 

-40

 

 

 

(dB)

-60

 

 

 

THD

AV = +10V/V

 

 

 

 

 

 

-80

AV = +1.25V/V

 

 

 

 

 

 

 

-100

 

 

 

 

-120

AV = +3V/V

 

 

 

 

 

 

 

1k

10k

100k

1M

FREQUENCY (Hz)

TOTAL HARMONIC DISTORTION vs. FREQUENCY

 

0

 

 

TOC14

 

VOUT = 1Vp-p

 

 

 

-20

 

 

MAX4174

 

 

 

 

 

-40

 

 

 

(dB)

-60

 

 

 

THD

AV = +51V/V

 

 

 

 

-80

 

 

 

 

-100

 

AV = +25V/V

 

 

-120

 

 

 

 

1k

10k

100k

1M

 

 

FREQUENCY (Hz)

 

TOTAL HARMONIC DISTORTION

TOTAL HARMONIC DISTORTION

vs. OUTPUT VOLTAGE SWING

vs. OUTPUT VOLTAGE SWING

 

-60

f = 10kHz

 

 

 

 

 

 

 

TOC15

 

-60

f = 10kHz

 

 

 

 

 

 

 

TOC16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-70

 

 

 

 

 

 

 

 

 

MAX4174

 

-70

 

 

 

 

 

 

 

 

 

MAX4174

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AV = +51V/V

 

 

 

 

 

 

 

-80

 

AV = +10V/V

 

 

 

 

 

 

 

-80

 

 

 

 

 

 

 

 

 

 

(dB)

-90

 

 

 

 

 

 

 

 

 

 

(dB)

-90

 

 

 

 

 

 

 

 

 

 

THD

 

 

 

 

 

 

 

 

 

 

THD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AV = +1.25V/V

 

 

 

 

 

 

 

AV

= +25V/V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-100

 

 

 

 

 

 

 

-100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AV = +3V/V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-110

 

 

 

 

 

 

 

 

 

 

 

-110

 

 

 

 

 

 

 

 

 

 

 

-120

 

 

 

 

 

 

 

 

 

 

 

-120

 

 

 

 

 

 

 

 

 

 

 

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

 

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

 

 

 

 

VOLTAGE SWING (Vp-p)

 

 

 

 

 

 

 

VOLTAGE SWING (Vp-p)

 

 

 

VOLTAGE NOISE DENSITY vs. FREQUENCY (AV = +1.25, +3, +10)

 

1000

17

(nV/ÖHz)

 

MAX4174/5 toc

DENSITY

 

AV = +10V/V

 

AV = +3V/V

 

 

NOISE

100

 

 

 

VOLTAGE

 

AV = +1.25V/V

 

 

10

1

10

100

1k

10k

100k

FREQUENCY (Hz)

VOLTAGE NOISE DENSITY vs. FREQUENCY (AV = +25, +51)

 

1000

18

(nV/ÖHz)

 

MAX4174/5 toc

DENSITY

AV = +25V/V

 

NOISE

100

 

 

 

VOLTAGE

AV

= +51V/V

 

 

INCLUDES RESISTOR NOISE

 

 

10

 

1

10

100

1k

10k

100k

 

 

FREQUENCY (Hz)

 

 

10

CURRENT NOISE DENSITY (fA/ÖHz)

1

CURRENT NOISE DENSITY vs.

FREQUENCY

MAX4174/5 toc19

1

10

100

1k

10k

100k

FREQUENCY (Hz)

6 _______________________________________________________________________________________

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