Analog Devices AD8041AR, AD8041AN, AD8041-EB, AD8041AR-REEL7, AD8041AR-REEL Datasheet

a		160 MHz Rail-to-Rail
		Amplifier with Disable
		AD8041*

FEATURES

Fully Specified for +3 V, +5 V, and 5 V Supplies

Output Swings Rail to Rail

Input Voltage Range Extends 200 mV Below Ground No Phase Reversal with Inputs 1 V Beyond Supplies Disable/Power-Down Capability

Low Power of 5.2 mA (26 mW on 5 V) High Speed and Fast Settling on 5 V:

160 MHz –3 dB Bandwidth (G = +1)

160 V/ s Slew Rate

30 ns Settling Time to 0.1%

Good Video Specifications (RL = 150 , G = +2)

Gain Flatness of 0.1 dB to 30 MHz 0.03% Differential Gain Error 0.03 Differential Phase Error

Low Distortion

–69 dBc Worst Harmonic @ 10 MHz Outstanding Load Drive Capability

Drives 50 mA 0.5 V from Supply Rails Cap Load Drive of 45 pF

APPLICATIONS

Power Sensitive High Speed Systems

Video Switchers

Distribution Amplifiers

A/D Driver

Professional Cameras

CCD Imaging Systems

Ultrasound Equipment (Multichannel)

Single-Supply Multiplexer

PRODUCT DESCRIPTION

The AD8041 is a low power voltage feedback, high-speed amplifier designed to operate on +3 V, +5 V, or ± 5 V supplies. It has true single supply capability with an input voltage range extending 200 mV below the negative rail and within 1 V of the positive rail.

5V
2.5V
0V	200ns
1V

Figure 1. Output Swing: G = –1, VS = 5 V

CONNECTION DIAGRAM

8-Lead DIP and SOIC

NC	1		8	DISABLE
–INPUT	2		7	VS
INPUT	3		6	OUTPUT
–VS	4	AD8041	5	NC
		(Top View)
	NC = NO CONNECT

The output voltage swing extends to within 50 mV of each rail, providing the maximum output dynamic range. Additionally, it features gain flatness of 0.1 dB to 30 MHz while offering differential gain and phase error of 0.03% and 0.03° on a single 5 V supply. This makes the AD8041 ideal for professional video electronics such as cameras, video switchers or any high-speed portable equipment. The AD8041’s low distortion and fast settling make it ideal for buffering high-speed A-to-D converters.

The AD8041 has a high-speed disable feature useful for multiplexing or for reducing power consumption (1.5 mA). The disable logic interface is compatible with CMOS or opencollector logic. The AD8041 offers low power supply current of 5.8 mA max and can run on a single 3 V power supply. These features are ideally suited for portable and battery powered applications where size and power are critical.

The wide bandwidth of 160 MHz along with 160 V/ s of slew rate on a single 5 V supply make the AD8041 useful in many general purpose high-speed applications where dual power supplies of up to ± 6 V and single supplies from 3 V to 12 V are needed. The AD8041 is available in 8-lead plastic DIP and SOIC over the industrial temperature range of –40°C to +85°C.

	2
	1				VS = 5V
					G = +2
	0				RF = 400
– dB	–1
	–2
GAIN
	–3
NORMALIZED
	–4
	–5
	–6
	–7
	–8		40		80	100
	0	20		60

FREQUENCY – MHz

Figure 2. Frequency Response: G = +2, VS = 5 V

*Protected under U.S. Patent No. 5,537,079.

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 which 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: [phone]	World Wide Web Site: www.analog.com
Fax: [phone]	© Analog Devices, Inc., 2001

AD8041–SPECIFICATIONS(@ TA = 25 C, VS = 5 V, RL = 2 k to 2.5 V, unless otherwise noted.)

		AD8041A
Parameter	Conditions	Min	Typ	Max	Unit
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth, VO < 0.5 V p-p	G = +1	130	160		MHz
Bandwidth for 0.1 dB Flatness	G = +2, RL = 150 Ω		30		MHz
Slew Rate	G = –1, VO = 2 V Step	130	160		V/µs
Full Power Response	VO = 2 V p-p		24		MHz
Settling Time to 0.1%	G = –1, VO = 2 V Step		35		ns
Settling Time to 0.01%			55		ns
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion	fC = 5 MHz, VO = 2 V p-p, G = +2, RL = 1 kΩ		–72		dB
Input Voltage Noise	f = 10 kHz		16		nV/√Hz
Input Current Noise	f = 10 kHz		600		fA/√Hz
Differential Gain Error (NTSC)	G = +2, RL = 150 Ω to 2.5 V		0.03		%
	G = +2, RL = 75 Ω to 2.5 V		0.01		%
Differential Phase Error (NTSC)	G = +2, RL = 150 Ω to 2.5 V		0.03		Degrees
	G = +2, RL = 75 Ω to 2.5 V		0.19		Degrees
DC PERFORMANCE
Input Offset Voltage			2	7	mV
	TMIN to TMAX			8	mV
Offset Drift			10		µV/°C
Input Bias Current			1.2	3.2	µA
	TMIN to TMAX			3.5	µA
Input Offset Current	RL = 1 kΩ		0.2	0.5	µA
Open-Loop Gain		86	95		dB
	TMIN to TMAX		90		dB
INPUT CHARACTERISTICS
Input Resistance			160		kΩ
Input Capacitance			1.8		pF
Input Common-Mode Voltage Range			–0.2 to +4		V
Common-Mode Rejection Ratio	VCM = 0 V to 3.5 V	74	80		dB
OUTPUT CHARACTERISTICS
Output Voltage Swing: RL = 10 kΩ			0.05 to 4.95		V
RL = 1 kΩ		0.35 to 4.75	0.1 to 4.9		V
RL = 50 Ω		0.4 to 4.4	0.3 to 4.5		V
Output Current	VOUT = 0.5 V to 4.5 V		50		mA
Short Circuit Current	Sourcing		90		mA
	Sinking		150		mA
Capacitive Load Drive	G = +1		45		pF
POWER SUPPLY
Operating Range		3		12	V
Quiescent Current			5.2	5.8	mA
Quiescent Current (Disabled)			1.4	1.7	mA
Power Supply Rejection Ratio	VS = 0, +5 V, ± 1 V	72	80		dB
DISABLE CHARACTERISTICS	VO = 2 V p-p @ 10 MHz, G = +2
Turn-Off Time	RF = RL = 2 kΩ		120		ns
Turn-On Time	RF = RL = 2 kΩ		230		ns
Off Isolation (Pin 8 Tied to –VS)	RL = 100 Ω, f = 5 MHz, G = +2, RF = 1 kΩ		70		dB
Off Voltage (Device Disabled)			<VS – 2.5		V
On Voltage (Device Enabled)			Open or +VS		V

Specifications subject to change without notice.

–2–

REV. A

SPECIFICATIONS (@ TA = 25 C, VS = 3 V, RL = 2 k to 1.5 V, unless otherwise noted)				AD8041
		AD8041A
Parameter	Conditions	Min	Typ	Max	Unit
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth, VO < 0.5 V p-p	G = +1	120	150		MHz
Bandwidth for 0.1 dB Flatness	G = +2, RL = 150 Ω		25		MHz
Slew Rate	G = –1, VO = 2 V Step	120	150		V/µs
Full Power Response	VO = 2 V p-p		20		MHz
Settling Time to 0.1%	G = –1, VO = 2 V Step		40		ns
Settling Time to 0.01%			55		ns
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion	fC = 5 MHz, VO = 2 V p-p, G = –1, RL = 100 Ω		–55		dB
Input Voltage Noise	f = 10 kHz		16		nV/√Hz
Input Current Noise	f = 10 kHz		600		fA/√Hz
Differential Gain Error (NTSC)	G = +2, RL = 150 Ω to 1.5 V, Input VCM = 1 V		0.07		%
Differential Phase Error (NTSC)	G = +2, RL = 150 Ω to 1.5 V, Input VCM = 1 V		0.05		Degrees
DC PERFORMANCE
Input Offset Voltage			2	7	mV
	TMIN to TMAX			8	mV
Offset Drift			10		µV/°C
Input Bias Current			1.2	3.2	µA
	TMIN to TMAX			3.5	µA
Input Offset Current	RL = 1 kΩ		0.2	0.6	µA
Open-Loop Gain		85	94		dB
	TMIN to TMAX		89		dB
INPUT CHARACTERISTICS
Input Resistance			160		kΩ
Input Capacitance			1.8		pF
Input Common-Mode Voltage Range			–0.2 to +2		V
Common-Mode Rejection Ratio	VCM = 0 V to 1.5 V	72	80		dB
OUTPUT CHARACTERISTICS
Output Voltage Swing: RL = 10 kΩ			0.05 to 2.95		V
RL = 1 kΩ		0.45 to 2.7	0.1 to 2.9		V
RL = 50 Ω		0.5 to 2.6	0.25 to 2.75		V
Output Current	VOUT = 0.5 V to 2.5 V		50		mA
Short Circuit Current	Sourcing		70		mA
	Sinking		120		mA
Capacitive Load Drive	G = +1		40		pF
POWER SUPPLY
Operating Range		3		12	V
Quiescent Current			5.0	5.6	mA
Quiescent Current (Disabled)			1.3	1.5	mA
Power Supply Rejection Ratio	VS = 0, +3 V, ± 0.5 V	68	80		dB
DISABLE CHARACTERISTICS	VO = 2 V p-p @ 10 MHz, G = +2
Turn-Off Time	RF = RL = 2 kΩ		90		ns
Turn-On Time	RF = RL = 2 kΩ		170		ns
Off Isolation (Pin 8 Tied to –VS)	RL = 100 Ω, f = 5 MHz, G = +2, RF = 1 kΩ		70		dB
Off Voltage (Device Disabled)			<VS – 2.5		V
On Voltage (Device Enabled)			Open or +VS		V

Specifications subject to change without notice.

REV. A

–3–

AD8041–SPECIFICATIONS (@ TA = 25 C, VS = 5 V, RL = 2 k to 0 V, unless otherwise noted)

		AD8041A
Parameter	Conditions	Min	Typ	Max	Unit
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth, VO < 0.5 V p-p	G = +1	140	170		MHz
Bandwidth for 0.1 dB Flatness	G = +2, RL = 150 Ω		32		MHz
Slew Rate	G = –1, VO = 2 V Step	140	170		V/µs
Full Power Response	VO = 2 V p-p		26		MHz
Settling Time to 0.1%	G = –1, VO = 2 V Step		30		ns
Settling Time to 0.01%			50		ns
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion	fC = 5 MHz, VO = 2 V p-p, G = +2, RL = 1 kΩ		–77		dB
Input Voltage Noise	f = 10 kHz		16		nV/√Hz
Input Current Noise	f = 10 kHz		600		fA/√Hz
Differential Gain Error (NTSC)	G = +2, RL = 150 Ω		0.02		%
	G = +2, RL = 75 Ω		0.02		%
Differential Phase Error (NTSC)	G = +2, RL = 150 Ω		0.03		Degrees
	G = +2, RL = 75 Ω		0.10		Degrees
DC PERFORMANCE
Input Offset Voltage			2	7	mV
	TMIN to TMAX			8	mV
Offset Drift			10		µV/°C
Input Bias Current			1.2	3.2	µA
	TMIN to TMAX			3.5	µA
Input Offset Current	RL = 1 kΩ		0.2	0.6	µA
Open-Loop Gain		90	99		dB
	TMIN to TMAX		95		dB
INPUT CHARACTERISTICS
Input Resistance			160		kΩ
Input Capacitance			1.8		pF
Input Common-Mode Voltage Range			–5.2 to +4		V
Common-Mode Rejection Ratio	VCM = –5 V to +3.5 V	72	80		dB
OUTPUT CHARACTERISTICS
Output Voltage Swing: RL = 10 kΩ			–4.95 to +4.95		V
RL = 1 kΩ		–4.45 to +4.6	–4.8 to +4.8		V
RL = 50 Ω		–4.3 to +3.2	–4.5 to +3.8		V
Output Current	VOUT = –4.5 V to +4.5 V		50		mA
Short Circuit Current	Sourcing		100		mA
	Sinking		160		mA
Capacitive Load Drive	G = +1		50		pF
POWER SUPPLY
Operating Range		3		12	V
Quiescent Current			5.8	6.5	mA
Quiescent Current (Disabled)			1.6	2.2	mA
Power Supply Rejection Ratio	VS = –5 V, +5 V, ± 1 V	68	80		dB
DISABLE CHARACTERISTICS	VO = 2 V p-p @ 10 MHz, G = +2
Turn-Off Time	RF = 2 kΩ		120		ns
Turn-On Time	RF = 2 kΩ		320		ns
Off Isolation (Pin 8 Tied to –VS)	RL = 100 Ω, f = 5 MHz, G = +2, RF = 1 kΩ		70		dB
Off Voltage (Device Disabled)			<VS – 2.5		V
On Voltage (Device Enabled)			Open or +VS

Specifications subject to change without notice.

–4–

REV. A

AD8041

ABSOLUTE MAXIMUM RATINGS1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . 12.6 V
Internal Power Dissipation2
Plastic DIP Package (N) . . . . . . . . . . . . . .	. . . . . 1.3 Watts
Small Outline Package (R) . . . . . . . . . . . . .	. . . . . 0.9 Watts
Input Voltage (Common Mode) . . . . . . . . . .	. . . . . . . . . . ± VS
Differential Input Voltage . . . . . . . . . . . . . . .	. . . . . . . . ± 3.4 V
Output Short Circuit Duration
. . . . . . . . . . . . . . . . . . . . . . Observe Power Derating Curves
Storage Temperature Range N, R . . . . . . . .	–65°C to +125°C
Operating Temperature Range (A Grade) . . .	–40°C to +85°C
Lead Temperature Range (Soldering 10 sec) .	. . . . . . . . 300°C

NOTES

1Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

2Specification is for the device in free air: 8-Lead Plastic DIP Package: θJA = 90°C/W. 8-Lead SOIC Package: θJA = 155°C/W.

MAXIMUM POWER DISSIPATION

The maximum power that can be safely dissipated by the AD8041 is limited by the associated rise in junction temperature. The maximum safe junction temperature for plastic encapsulated devices is determined by the glass transition temperature of the plastic, approximately 150°C. Exceeding this limit temporarily may cause a shift in parametric performance due to a change in

the stresses exerted on the die by the package. Exceeding a junction temperature of 175°C for an extended period can result in device failure.

While the AD8041 is internally short circuit protected, this may not be sufficient to guarantee that the maximum junction temperature (150°C) is not exceeded under all conditions. To ensure proper operation, it is necessary to observe the maximum power derating curves.

	2.0
Watts	8-LEAD PLASTIC DIP PACKAGE
					TJ	= 150 C
–
DISSIPATION	1.5
	1.0
POWER
	8-LEAD SOIC PACKAGE
MAXIMUM
	0.5
	0	0	10 20 30 40	50	60	70 80	90
	–50 –40 –30 –20 –10
	AMBIENT TEMPERATURE – C

Figure 3. Maximum Power Dissipation vs. Temperature

ORDERING GUIDE

	Temperature	Package	Package
Model	Range	Description	Options
AD8041AN	–40°C to +85°C	8-Lead Plastic DIP	N-8
AD8041AR	–40°C to +85°C	8-Lead Plastic SOIC	SO-8
AD8041AR-REEL	–40°C to +85°C	13" Tape and Reel	SO-8
AD8041AR-REEL7	–40°C to +85°C	7" Tape and Reel	SO-8
AD8041-EB	–55°C to +125°C	Evaluation Board
5962-9683901MPA*		8-Lead Cerdip	Q-8

*Refer to official DSCC drawing for tested specifications.

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD8041 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.

WARNING!

ESD SENSITIVE DEVICE

REV. A

–5–