intersil ISL28190, ISL28290 DATA SHEET

®

ISL28190, ISL28290

Data Sheet April 13, 2007

Single and Dual Ultra-Low Noise,
Ultra-Low Distortion, Rail-to-Rail, Op Amp

The ISL28190 and ISL28290 are tiny single and dual
ultra-low noise, ultra-low distortion operational amplifiers.
Fully specified to operated down to +3V single supply. These
amplifiers have outputs that swing rail-to-rail, and an input
common mode voltage that extends below ground (ground
sensing).

The ISL28190 and ISL28290 are unity gain stable with an
input referred voltage noise of 1nV/√Hz. Both parts feature

nd

2

and 3rd harmonic distortion of -87dBc and -90dBc,

respectively.
The ISL28190 is available in the space-saving 6 Ld µTDFN

(1.6mm x 1.6mm) and SOT-23 packages. The ISL28290 is
available in the 10 Ld µTQFN (1.8mm x 1.4mm) and MSOP
packages. All devices are guaranteed over -40°C to +125°C.

Ordering Information

PART NUMBER

(Note)

ISL28190FHZ-T7 GABH 3k pcs 6 Ld SOT-23 MDP0038

Coming Soon

ISL28190FRUZ-TK
ISL28290FUZ 8290Z 50/tube 10 Ld MSOP MDP0043
ISL28290FUZ-T7 8290Z 1.5k pcs 10 Ld MSOP MDP0043

Coming Soon

ISL28290FRUZ-T7

NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100% matte
tin plate termination finish, which are RoHS compliant and compatible
with both SnPb and Pb-free soldering operations. Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that
meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

PART

MARKING

TAPE &

REEL

1k pcs 6 Ld μTDFN L6.1.6x1.6A

1k pcs 10 Ld μTQFN L10.1.8x1.4A

PACKAGE

(Pb-free)

PKG.

DWG. #

FN6247.3

Features

•1nV/√Hz input voltage noise

• Harmonic Distortion -87dBc, -90dBc, f

= 1MHz

o

• 170MHz -3dB bandwidth

• 50V/µs slew rate

• 700µV maximum offset voltage

• 10µA typical input bias current

• 103dB typical CMRR

• 3V to 5.5V single supply voltage range

• Rail-to-rail output

• Ground sensing

• Enable pin

• Pb-free plus anneal available (RoHS compliant)

Applications

• Low noise signal processing

• Low noise microphones/preamplifiers

• ADC buffers

• DAC output amplifiers

• Digital scales

• Strain gauges/sensor amplifiers

• Radio systems

• Portable equipment

• Infrared detectors

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

| Intersil (and design) is a registered trademark of Intersil Americas Inc.

Copyright © Intersil Americas Inc. 2006, 2007. All Rights Reserved.

All other trademarks mentioned are the property of their respective owners.

Pinouts

ISL28190

(6 LD SOT-23)

TOP VIEW

ISL28190, ISL28290

ISL28190

(6 LD 1.6X1.6X0.5 µTDFN)

TOP VIEW

OUT

IN+

1

V-

2

3

6

V +

5

-+

ENABLE

IN-

4

ISL28290

(10 LD MSOP)

TOP VIEW

1

OUT_A

2

IN-_A

IN+_A

ENABLE_A ENABLE_B

­+

3

4

V-

5 6

10

V+

OUT_B

9

IN-_B

8

­+

7

IN+_B

7

IN-_A

IN+_A

1

OUT

2

IN-

IN+

3

ISL28290

(10 Ld μTQFN)

TOP VIEW

OUT_A

10

1

-

+

2

V+

-+

V+

9

-

+

543

ENABLE_A

ENABLE_B

6

V+

5

ENABLE

4

V-

OUT_B

8

7

6

IN-_B

IN+_B

2

FN6247.3

April 13, 2007

ISL28190, ISL28290

Absolute Maximum Ratings (T

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V

Supply Turn On Voltage Slew Rate . . . . . . . . . . . . . . . . . . . . . 1V/μs

Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA

Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5V

Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . V-

ESD Tolerance

Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3kV

Machine Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300V

= +25°C) Thermal Information

A

Thermal Resistance θ

6 Ld SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . . 230

6 Ld µTDFN Package . . . . . . . . . . . . . . . . . . . . . . . 120

- 0.5V to V+ + 0.5V

10 Ld MSOP Package . . . . . . . . . . . . . . . . . . . . . . . 115

6 Ld µTQFN Package . . . . . . . . . . . . . . . . . . . . . . . 143

Ambient Operating Temperature Range . . . . . . . . .-40°C to +125°C

Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C

Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . +125°C

(°C/W)

JA

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied .

IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: TJ = TC = T

Electrical Specifications V

= 5.0V, V-= GND, RL = 1kΩ, RF = 1kΩ, AV = -1. unless otherwise specified. Parameters are per amplifier.

+

Typical values are at V+= 5V, T

-40°C to +125°C, temperature data guaranteed by characterization

A

= +25°C. Boldface limits apply over the operating temperature range,

A

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

V

OS

Input Offset Voltage 240 700

µV

900

ΔV

OS

--------------- -

ΔT

I

OS

I

B

HD
(1MHz)

V

N

IN Input Referred Current Noise f

Input Offset Drift vs Temperature Figure 17 1.9 µV/°C

Input Offset Current 40 500

nA

900

Input Bias Current 10 16

µA

18

2nd Harmonic Distortion 2V

output voltage, AV = 1 -87 dBc

P-P

3rd Harmonic Distortion -90 dBc
Input Referred Voltage Noise fO = 1kHz 1 nV/√Hz

= 10kHz 2.1 pA/√Hz

O

CMIR Common-Mode Input Range 0 3.8 V
CMRR Common-Mode Rejection Ratio V
PSRR Power Supply Rejection Ratio V
A

V

VOL

OUT

Large Signal Voltage Gain VO = 0.5V to 4V, RL = 1kΩ 94

Maximum Output Voltage Swing Output low, RL = 1kΩ 20 50

SR Slew Rate 30

= 0V to 3.8V 78 103 dB

CM

= 3V to 5V 74 80 dB

S

102 dB

90

80

Output high, R

= 1kΩ, V+= 5V 4.95

L

4.92

4.97 V

50 V/µs

mV

25

3dB BW 3dB Bandwidth C
I

S,ON

I

S,OFF

+ Short-Circuit Output Current RL = 10Ω 95

I

O

Supply Current, Enabled 8.5 11

Supply Current, Disabled 26 35

= 20pF, AV = 1, RL = 10kΩ 170 MHz

L

13

52

144 mA

mA

µA

90

3

FN6247.3

April 13, 2007

ISL28190, ISL28290

Electrical Specifications V

= 5.0V, V-= GND, RL = 1kΩ, RF = 1kΩ, AV = -1. unless otherwise specified. Parameters are per amplifier.

+

Typical values are at V+= 5V, T

-40°C to +125°C, temperature data guaranteed by characterization

= +25°C. Boldface limits apply over the operating temperature range,

A

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

IO- Short-Circuit Output Current RL = 10Ω 95

135 mA

90

V

SUPPLY

V

INH

V

INL

I

ENH

I

ENL

Supply Operating Range VS+ to VS-35.5V
ENABLE Pin High Level 2 V
ENABLE Pin Low Level 0.8 V
ENABLE Pin Input High Current VEN = V+ 0.8 1.2

1.4

ENABLE Pin Input Low Current VEN = V- 20 80

100

Typical Performance Curves

2
1
0

-1

-2

-3

-4

-5
V+ = 5V

-6

= +1

A

CLOSED LOOP GAIN (dB)

V

= 10pF

C

L

-7

V

= 10mV

OUT

-8

100k

P-P

1M

RL = 10k

RL = 100

RL = 1k

10M

FREQUENCY (Hz)

RL = 100k

100M 1G

FIGURE 1. GAIN vs FREQUENCY FOR VARIOUS R

LOAD

10

8
6
4
2
0

-2

-4

-6

CLOSED LOOP GAIN (dB)

-8

-10
10k 100k

V+ = 5V

= +1

A

V

= 10kΩ

R

L

V

OUT

= 10mV

CL = 110pF

CL = 92pF

CL = 57pF

CL = 32pF

CL = 20pF

CL = 1pF

P-P

1M

FREQUENCY (Hz)

10M

100M 1G

FIGURE 2. GAIN vs FREQUENCY FOR VARIOUS C

LOAD

µA

nA

2
1
0

-1

-2

-3

-4

-5
V+ = 5V

-6

A

CLOSED LOOP GAIN (dB)

R

-7

C

-8

10k 100k

= +1

V

= 10kΩ

L

= 10pF

L

V

= 1V

OUT

V

= 100mV

OUT

V

= 10mV

OUT

1M

FREQUENCY (Hz)

FIGURE 3. -3dB BANDWIDTH vs V

4

P-P

P-P

P-P

10M

V

OUT

= 1mV

P-P

100M 1G

OUT

1M

100k

10k

1k

V+ = 5V, 3V

INPUT IMPEDANCE (Ω)

ENABLED AND

100

10

100k

DISABLED
V

SOURCE

= 1V

P-P

1M

FREQUENCY (Hz)

10M

100M 1G

FIGURE 4. INPUT IMPEDANCE vs FREQUENCY

FN6247.3

April 13, 2007

Typical Performance Curves (Continued)

ISL28190, ISL28290

1M

100k

10k

1k

100

OUTPUT IMPEDANCE (Ω)

V+ = 5V, 3V

SOURCE

= 1V

P-P

1M

FREQUENCY (Hz)

10M

100M 1G

V

10

100k

FIGURE 5. DISABLED OUTPUT IMPEDANCE vs FREQUENCY

0

-10

-20

-30

-40

-50

-60

CMRR (dB)

CMRR (dB)

-70

-80

-90

-100

-110
1k

10k

100k

FREQUENCY (Hz)

1M

V+ = 5V

= +1

A

V

= 10kΩ

R

L

= 10pF

C

L

= 100mV

V

OUT

10M 100M

P-P

100

V+ = 5V, 3V

10

1

0.1

OUTPUT IMPEDANCE (Ω)

0.01
100k

1M

FREQUENCY (Hz)

10M

100M 1G

FIGURE 6. ENABLED OUTPUT IMPEDANCE vs FREQUENCY

0

V+ = 5V

-10

= +1

A

V

= 10kΩ

R

L

-20

C

= 10pF

-30

-40

-50

PSRR (dB)

-60

-70

-80

-90
1k

V

L
OUT

= 100mV

10k

P-P

FREQUENCY (Hz)

100k

PSRR-

1M

PSRR+

10M 100M

FIGURE 7. CMRR vs FREQUENCY

-10

-20

-30

-40

-50

-60

OFF ISOLATION (dB)

-70

-80
10k 100k

V

P-P

= 10mV

1M

FREQUENCY (Hz)

V

P-P

10M

V

= 1V

P-P

= 100mV

FIGURE 9. OFF ISOLATION vs FREQUENCY

5

V+ = 5V

= +1

A

V

= 10kΩ

R

L

= 10pF

C

L

100M 1G

FIGURE 8. PSRR vs FREQUENCY

-20

-30

-40

-50

-60

-70

-80

-90

CROSSTALK (dB)

-100

-110

-120
10k 100k

1M

FREQUENCY (Hz)

10M

V

= 1V

P-P

100M 1G

FIGURE 10. CHANNEL TO CHANNEL CROSSTALK vs

FREQUENCY

April 13, 2007

FN6247.3