AD8601/AD8602/AD8604

TYPICAL PERFORMANCE CHARACTERISTICS

	3,000
					VS = 3V
					TA = 25°C
(Amplifiers)	2,500				VCM = 0V TO 3V
	2,000
QUANTITY	1,500
	1,000
		500
		0																																						01525-005
		–1.0				–0.8			–0.6			–0.4			–0.2			0			0.2					0.4					0.6			0.8			1.0
												INPUT OFFSET VOLTAGE (mV)
							Figure 5. Input Offset Voltage Distribution
	3,000
					VS = 5V
					TA = 25°C
(Amplifiers)	2,500				VCM = 0V TO 5V
	2,000
QUANTITY	1,500
	1,000
		500
		0																																						01525-006
						–0.8			–0.6			–0.4			–0.2			0			0.2					0.4					0.6			0.8			1.0
		–1.0
												INPUT OFFSET VOLTAGE (mV)
							Figure 6. Input Offset Voltage Distribution
		60
																										VS = 3V
		50																								TA = 25°C TO 85°C
(Amplifiers)		40
QUANTITY		30
		20
		10
		0																																					01525-007
		0				1			2			3			4			5			6					7					8			9			10
															TCVOS (µV/°C)

Figure 7. Input Offset Voltage Drift Distribution

		60
		VS = 5V
		TA = 25°C TO 85°C
	(Amplifiers)	50
		40
	QUANTITY	30
		20
		10
		0

	0				1		2		3	4			5		6		7		8			9	10	01525008-
											TCVOS (µV/°C)
					Figure 8. Input Offset Voltage Drift Distribution
	1.5
					VS = 3V
	1.0				TA = 25°C
(mV)	0.5
VOLTAGE
	0
OFFSET
	–0.5
INPUT
	–1.0
	–1.5
	–2.0																								-009
	0				0.5					1.0			1.5				2.0		2.5				3.0
																									01525
									COMMON-MODE VOLTAGE (V)
	Figure 9. Input Offset Voltage vs. Common-Mode Voltage
	1.5
					VS = 5V
	1.0				TA = 25°C
(mV)
	0.5
VOLTAGE
	0
OFFSET
	–0.5
INPUT
	–1.0
	–1.5
	–2.0																								-010
																							5
	0						1			2					3				4
																									01525
									COMMON-MODE VOLTAGE (V)

Figure 10. Input Offset Voltage vs. Common-Mode Voltage

Rev. G | Page 6 of 24

	300
						VS = 3V
(pA)	250
CURRENT	200
	150
BIAS
INPUT	100
	50
	0																																	-011
	–40					–25		–10				5			20 35 50 65 80											95			110			125
																																		01525
															TEMPERATURE (°C)
						Figure 11. Input Bias Current vs. Temperature
	300
						VS = 5V
(pA)	250
CURRENT	200
	150
BIAS
INPUT	100
	50
	0																																	-012
	–40					–25		–10				5			20 35 50 65 80											95			110			125
																																		01525
															TEMPERATURE (°C)
						Figure 12. Input Bias Current vs. Temperature
	5
				VS = 5V
				TA = 25°C
(pA)	4
CURRENTBIAS	2
INPUT	3
	1
	0																																	-013
	0					0.5		1.0				1.5			2.0			2.5		3.0			3.5			4.0			4.5			5.0
																																		01525
												COMMON-MODE VOLTAGE (V)

Figure 13. Input Bias Current vs. Common-Mode Voltage

AD8601/AD8602/AD8604

	30
						VS = 3V
(pA)	25
CURRENT	20
OFFSET	15
	10
INPUT
	5
	0																																																	-014
	–40					–25					–10					5		20 35 50 65 80 95 110																												125
																																																		01525
																			TEMPERATURE (°C)
							Figure 14. Input Offset Current vs. Temperature
	30
						VS = 5V
(pA)	25
CURRENT	20
OFFSET	15
	10
INPUT
	5
	0																																																	-015
	–40					–25					–10					5		20 35 50 65 80 95 110																												125
																																																		01525
																			TEMPERATURE (°C)
							Figure 15. Input Offset Current vs. Temperature
	10k
						VS = 2.7V
(mV)	1k					TA = 25°C
VOLTAGE	100																																		SINK
OUTPUT	10																							SOURCE
	1
	0.1																																																	01525-016
											0.01							0.1											1									10								100
	0.001
																			LOAD CURRENT (mA)

Figure 16. Output Voltage to Supply Rail vs. Load Current

Rev. G | Page 7 of 24

AD8601/AD8602/AD8604

	10k
						VS = 5V
(mV)	1k					TA = 25°C
VOLTAGE	100																																				SINK
OUTPUT	10																									SOURCE
	1
	0.1																																																				01525-017
											0.01								0.1								1															10						100
	0.001
																			LOAD CURRENT (mA)
	Figure 17. Output Voltage to Supply Rail vs. Load Current
	5.1
						VS = 5V
	5.0
(V)						VOH @ 1mA LOAD
VOLTAGE	4.9
	4.8
OUTPUT
	4.7				VOH @ 10mA LOAD
	4.6
	4.5																																																				-018
	–40							–25			–10					5			20					35			50						65				80					95			110			125
																																																					01525
																			TEMPERATURE (°C)
							Figure 18. Output Voltage Swing vs. Temperature
	250
							VS = 5V
(mV)	200
VOLTAGE	150
							VOH @ 10mA LOAD
OUTPUT	100
	50
							VOH @ 1mA LOAD
	0																																																				-019
	–40							–25				–10				5			20					35			50						65				80					95			110			125
																																																					01525
																			TEMPERATURE (°C)

Figure 19. Output Voltage Swing vs. Temperature

	35
					VS = 2.7V
(mV)	30
	25
VOLTAGE
	20
																	VOH @ 1mA LOAD
OUTPUT	15
	10
	5
	0																																															-020
		–40					–25						–10			5	20						35		50					65				80					95		110					125
																																																01525
																				TEMPERATURE (°C)
							Figure 20. Output Voltage Swing vs. Temperature
	2.67
						VS = 2.7V
(V)	2.66
																	VOH
VOLTAGE	2.65																					@ 1mA		LOAD
OUTPUT	2.64
	2.63
	2.62																																															-021
		–40						–25						–10		5	20						35		50					65				80					95		110					125
																																																01525
																				TEMPERATURE (°C)
							Figure 21. Output Voltage Swing vs. Temperature
120																																														–90
																																				VS			= 3V
100																																				RL			= NO LOAD							–45
	80																																			TA			= 25°C							0
(dB)GAIN	60																																													45		(Degrees)SHIFTPHASE
	40																														PHASE															90
	20																																													135
	0																																													180
																														GAIN
–20																																														225
–40																																														270
–60																																														315
–80																																														360		-022
	1k											10k							100k									1M									10M						100M
																																																01525
																			FREQUENCY (Hz)

Figure 22. Open-Loop Gain and Phase vs. Frequency

Rev. G | Page 8 of 24

120

–90

VS = 5V

100

RL = NO LOAD

–45

80

TA = 25°C

0

(dB)GAIN

60

45

(Degrees)SHIFTPHASE

40

PHASE

90

20

135

0

180

GAIN

–20

225

–40

270

–60

315

–80

360

-023

1k

10k

100k

1M

10M

100M

01525

FREQUENCY (Hz)

Figure 23. Open-Loop Gain and Phase vs. Frequency

VS

= 3V

TA

= 25°C

(dB)

40

AV = 100

AV = 10

GAIN

20

LOOP-CLOSD

0

AV = 1

-024

1k

10k

100k

1M

10M

100M

01525

FREQUENCY (Hz)

Figure 24. Closed-Loop Gain vs. Frequency

VS

= 5V

TA

= 25°C

(dB)

40

AV = 100

AV = 10

GAIN

20

LOOP-CLOSD

0

AV = 1

-025

1k

10k

100k

1M

10M

100M

01525

FREQUENCY (Hz)

Figure 25. Closed-Loop Gain vs. Frequency

AD8601/AD8602/AD8604

3.0

2.5

VS

= 2.7V

p-p)

V

= 2.6V p-p

RIN= 2kΩ

(V

2.0

L

= 25°C

TA

SWING

AV = 1

1.5

OUTPUT

1.0

0.5

0

-026

1k

10k

100k

1M

10M

01525

FREQUENCY (Hz)

Figure 26. Closed-Loop Output Voltage Swing vs. Frequency

6

5

-p)

VS = 5V

VIN

= 4.9V p-p

p

4

RL = 2kΩ

(V

TA = 25°C

SWING

3

AV = 1

OUTPUT

2

1

0

-027

1k

10k

100k

1M

10M

01525

FREQUENCY (Hz)

Figure 27. Closed-Loop Output Voltage Swing vs. Frequency

200

VS = 3V

180

TA = 25°C

(Ω)

160

140

IMPEDANCE

A

V =

10

120

AV = 100

OUTPUT

100

80

60

AV = 1

40

20

0

-028

1k

10k

100k

1M

10M

100M

01525

FREQUENCY (Hz)

Figure 28. Output Impedance vs. Frequency

Rev. G | Page 9 of 24

AD8601/AD8602/AD8604

	200
				VS = 5V
	180			TA = 25°C
(Ω)	160
	140
IMPEDANCE
	120																																	A		V	=		10
	100																								AV = 100
OUTPUT	80
	60																																											AV = 1
	40
	20
	0																																																						-029
	100										1k									10k									100k												1M											10M
																																																							01525
																			FREQUENCY (Hz)
						Figure 29. Output Impedance vs. Frequency
	160
				VS = 3V
(dB)	140			TA = 25°C
	120
REJECTION
	100
	80
MODE-COMMON	60
	40
	20
	0
	–20
	–40																																																						-030
	1k											10k											100k												1M												10M 20M
																																																							01525
																			FREQUENCY (Hz)
	Figure 30. Common-Mode Rejection Ratio vs. Frequency
	160
				VS = 5V
(dB)	140			TA = 25°C
	120
REJECTION
	100
	80
MODE-COMMON	60
	40
	20
	0
	–20
	–40																																																						-031
	1k											10k											100k												1M												10M 20M
																																																							01525
																			FREQUENCY (Hz)

Figure 31. Common-Mode Rejection Ratio vs. Frequency

	160
				VS = 5V
(dB)	140			TA = 25°C
	120
REJECTION
	100
	80
SUPPLY	60
	40
POWER
	20
	0
	–20
	–40																																															-032
	100									1k							10k										100k										1M								10M
																																																01525
																FREQUENCY (Hz)
			Figure 32. Power Supply Rejection Ratio vs. Frequency
	70
				VS = 2.7V
				RL = ∞
(%)	60			TA = 25°C
				AV = 1
OVERSHOOT	50
																								–OS
	40
SIGNAL																											+OS
	30
SMALL
	20
	10
	0																																														01525-033
																						100																							1k
	10
															CAPACITANCE (pF)
	Figure 33. Small Signal Overshoot vs. Load Capacitance
	70
				VS = 5V
				RL = ∞
(%)	60			TA = 25°C
				AV = 1
OVERSHOOT	50																							–OS
SIGNAL	40
	30
																									+OS
SMALL	20
	10
	0																																														01525-034
																						100																							1k
	10
															CAPACITANCE (pF)

Figure 34. Small Signal Overshoot vs. Load Capacitance

Rev. G | Page 10 of 24

AD8601/AD8602/AD8604

	1.2
(mA)		VS = 5V
	1.0
PER AMPLIFIER	0.8
	0.6
CURRENT	0.4
SUPPLY	0.2
	0								-035
	–40	–25	–10	5	20 35 50 65 80	95	110	125
									01525
					TEMPERATURE (°C)

Figure 35. Supply Current per Amplifier vs. Temperature

	1.0
(mA)			VS = 3V
	0.8
AMPLIFIER
	0.6
PER
CURRENT	0.4
SUPPLY	0.2
	0																								-036
	–40		–25 –10				5 20				35 50 65					80			95 110				125
																									01525
								TEMPERATURE (°C)
	Figure 36. Supply Current per Amplifier vs. Temperature
(mA)	0.8
	0.7
AMPLIFIERPER
	0.4
	0.6
CURRENT	0.5
	0.3
SUPPLY	0.2
	0.1
	0																								-037
																							6
	0		1				2				3					4			5
																									01525
								SUPPLY VOLTAGE (V)

Figure 37. Supply Current per Amplifier vs. Supply Voltage

0.1	VS = 5V
	TA = 25°C	RL = 600Ω
	G = 10	RL = 2kΩ
0.01		RL = 10kΩ
(%)		RL = 600Ω
+ N	G = 1	RL = 2kΩ
THD		RL = 10kΩ
0.001

	0.0001							-038
	20		100	1k	10k	20k
								01525
				FREQUENCY (Hz)

Figure 38. Total Harmonic Distortion + Noise vs. Frequency

	64	VS = 2.7V
Hz)	56	TA = 25°C
(nV/	48
DENSITY	40
	32
NOISE
	24
VOLTAGE	16
	8
	0	5	10	15	20	25	01525-039
	0
			FREQUENCY (kHz)

Figure 39. Voltage Noise Density vs. Frequency

	208	VS = 2.7V
Hz)	182	TA = 25°C
(nV/	156
DENSITY	130
	104
NOISE
	78
VOLTAGE	52
	26
	0	0.5	1.0	1.5	2.0	2.5	01525-040
	0
			FREQUENCY (kHz)

Figure 40. Voltage Noise Density vs. Frequency

Rev. G | Page 11 of 24

AD8601/AD8602/AD8604
	208	VS = 5V
Hz)	182	TA = 25°C
(nV/	156
DENSITY	130
	104
NOISE
	78
VOLTAGE	52
	26
	0	0.5	1.0	1.5	2.0	2.5	01525-041
	0
			FREQUENCY (kHz)

Figure 41. Voltage Noise Density vs. Frequency

	64	VS = 5V
Hz)	56	TA = 25°C
(nV/	48
DENSITY	40
	32
NOISE
	24
VOLTAGE	16
	8
	0	5	10	15	20	25	01525-042
	0
			FREQUENCY (kHz)

Figure 42. Voltage Noise Density vs. Frequency

VS = 2.7V

TA = 25°C

VOLTAGE (2.5µV/DIV)

	01525-043
TIME (1s/DIV)

Figure 43. 0.1 Hz to 10 Hz Input Voltage Noise

VS = 5V

TA = 25°C

VOLTAGE (2.5µV/DIV)

	01525-044
TIME (1s/DIV)

Figure 44. 0.1 Hz to 10 Hz Input Voltage Noise

VS = 5V

RL = 10kΩ

CL = 200pF

TA = 25°C

							01525-045
	50mV/DIV				200ns/DIV

Figure 45. Small Signal Transient Response

VS = 2.7V

RL = 10kΩ

CL = 200pF

TA = 25°C

									-046
	50mV/DIV				200ns/DIV
									01525

Figure 46. Small Signal Transient Response

Rev. G | Page 12 of 24

VS = 5V

RL = 10kΩ

CL = 200pF

AV = 1

TA = 25°C

VOLTAGE (1V/DIV)

	01525-047
TIME (400ns/DIV)

Figure 47. Large Signal Transient Response

VS = 2.7V

RL = 10kΩ

CL = 200pF

AV = 1

TA = 25°C

VOLTAGE (500mV/DIV)

	01525-048
TIME (400ns/DIV)

Figure 48. Large Signal Transient Response

		VS = 2.7V
		RL = 10kΩ
	VIN	AV = 1
		TA = 25°C
(1V/DIV)
VOLTAGE	VOUT
	TIME (2µs/DIV)	01525-049

Figure 49. No Phase Reversal

	AD8601/AD8602/AD8604
	VIN	VS = 5V
		RL = 10kΩ
		AV = 1
		TA = 25°C
VOLTAGE (1V/DIV)	VOUT
	TIME (2µs/DIV)	01525-050

Figure 50. No Phase Reversal

VS = 5V

RL = 10kΩ

VO = 2V p-p

TA = 25°C

(V)

+0.1%

VIN

ERROR

VOLTAGE

–0.1%

VOUT

ERROR

VIN TRACE – 0.5V/DIV

VOUT TRACE – 10mV/DIV

01525-051

TIME (100ns/DIV)

Figure 51. Settling Time

	2.0	VS = 2.7V
	1.5	TA = 25°C
	1.0	0.1%		0.01%
(V)
	0.5
SWING
	0
OUTPUT	–0.5
		0.1%		0.01%
	–1.0
	–1.5
	–2.0							-052
	300	350	400	450	500	550	600
								01525
			SETTLING TIME (ns)

Figure 52. Output Swing vs. Settling Time

Rev. G | Page 13 of 24

AD8601/AD8602/AD8604
	5	VS = 5V
	4	TA = 25°C
	3
(V)	2
SWING	1	0.1%	0.01%
	0
OUTPUT	–1	0.1%	0.01%
	–2
	–3
	–4
	–5						-053
	0	200	400	600	800	1,000
							01525
		SETTLING TIME (ns)

Figure 53. Output Swing vs. Settling Time

Rev. G | Page 14 of 24