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LTC6252/LTC6253/LTC6254

ELECTRICAL CHARACTERISTICS

Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime.

Note 2: The inputs are protected by back-to-back diodes. If any of the input or shutdown pins goes 300mV beyond either supply or the

differential input voltage exceeds 1.4V the input current should be limited to less than 10mA. This parameter is guaranteed to meet specified performance through design and/or characterization. It is not production tested.

Note 3: A heat sink may be required to keep the junction temperature below the absolute maximum rating when the output current is high. This parameter is guaranteed to meet specified performance through design and/or characterization. It is not production tested.

Note 4: The LTC6252C/LTC6253C/LTC6254C and LTC6252I/LTC6253I/ LTC6254I are guaranteed functional over the temperature range of –40°C to 85°C. The LTC6252H/LTC6253H/LTC6254H are guaranteed functional over the temperature range of –40°C to 125°C.

Note 5: The LTC6252C/LTC6253C/LTC6254C are guaranteed to meet specified performance from 0°C to 70°C. The LTC6252C/LTC6253C/ LTC6254C are designed, characterized and expected to meet specified performance from –40°C to 85°C but are not tested or QA sampled at these temperatures. The LTC6252I/LTC6253I/LTC6254I are guaranteed to meet specified performance from –40°C to 85°C. The LTC6252H/ LTC6253H/LTC6254H are guaranteed to meet specified performance from –40°C to 125°C.

Note 6: Supply voltage range is guaranteed by power supply rejection ratio test.

Note 7: The input bias current is the average of the average of the currents at the positive and negative input pins.

Note 8: Matching parameters are the difference between amplifiers A and D and between B and C on the LTC6254; between the two amplifiers on the LTC6253.

Note 9: Thermal resistance varies with the amount of PC board metal connected to the package. The specified values are with short traces connected to the leads with minimal metal area.

Note 10: The output voltage is varied from 0.5V to 4.5V during measurement.

Note 11: Middle 2/3 of the output waveform is observed. RL = 1k to half supply.

Note 12: The output voltage is varied from 0.5V to 2.2V during measurement.

Note 13: FPBW is determined from distortion performance in a gain of +2 configuration with HD2, HD3 < –40dBc as the criteria for a valid output.

Note 14: Differential gain and phase are measured using a Tektronix TSG120YC/NTSC signal generator and a Tektronix 1780R video measurement set.

TYPICAL PERFORMANCE CHARACTERISTICS

		VOS Distribution, VCM = VS/2								VOS Distribution, VCM				= VS/2
		(MS, PNP Stage)								(TSOT-23, PNP Stage)
	40								40
	40	VS = 5V, 0V							40	VS = 5V, 0V
	35	VCM	= 2.5V						35	VCM = 2.5V
	35	VCM	= 2.5V						35	VCM = 2.5V
(%)	30							(%)	30
	30								30

UNITS	25							UNITS	25
	25								25
OF	20							OF	20
OF	20							OF	20
PERCENT	15							PERCENT	15
PERCENT								PERCENT

	10								10
	10								10
	5								5
	5								5
	0								0


			–150	–50	50	150	250				–150	–50	50	150	250
	–250		–150	–50	50	150	250		–250		–150	–50	50	150	250
			INPUT OFFSET VOLTAGE (µV)								INPUT OFFSET VOLTAGE (µV)
							625234 G01								625234 G02

PERCENT OF UNITS (%)

VOS Distribution, VCM = V+ – 0.5V

(MS, NPN Stage)

16
16	VS = 5V, 0V
14	VCM =	4.5V


12


10
10
8
8
6
6
4


2
2

0	–1200	–400	400	1200	2000
–2000

INPUT OFFSET VOLTAGE (µV)

625234 G03

625234fc

LTC6252/LTC6253/LTC6254

TYPICAL PERFORMANCE CHARACTERISTICS

PERCENT OF UNITS (%)

VOS Distribution, VCM = V+ – 0.5V

(TSOT-23, NPN Stage)

18
18	VS = 5V, 0V
16	VCM = 4.5V
16	VCM = 4.5V
14
14
12
10
10
8


6
6
4
4
2


0


–2000		–1200	–400	400	1200	2000

INPUT OFFSET VOLTAGE (µV)

625234 G04

VOLTAGE OFFSET (µV)

VOS vs Temperature, VS = 5V, 0V (MS, PNP Stage)

300

VS = 5V, 0V

200 VCM = 2.5V

6 DEVICES

100

–100

–200

–300

–400

–500

–600–55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C)

625234 G05

VOS vs Temperature, VS = 5V, 0V (MS, NPN Stage)

	2000
	1500
(µV)	1000
(µV)	500
OFFSET	0
	0
VOLTAGE	–500
VOLTAGE	–1000
	–1000
	–1500	VS = 5V, 0V
	–2000	VS = 5V, 0V
	–2000	VCM = 4.5V
	–2500	6 DEVICES			5	25	45	65	85	105	125
	–55		–35	–15	5	25	45	65	85	105	125

TEMPERATURE (°C)

625234 G06

VOLTAGE OFFSET (µV)

	VOS vs Temperature,
1200	VS = 2.7V, 0V (MS, PNP Stage)
1200	VS = 2.7V, 0V
1100	VCM = 1.35V
1100	6 DEVICES
1000
900
800
700
600
500

400–55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C)

625234 G07

VOLTAGE OFFSET (µV)

VOS vs Temperature,

VS = 2.7V, 0V (MS, NPN Stage)

3200

2700
2200
1700
1200
700
200
–300
–800	VS = 2.7V, 0V
–1300	VCM = 2.2V
–1800	6 DEVICES			5	25	45	65	85	105	125
–55		–35	–15	5	25	45	65	85	105	125

TEMPERATURE (°C)

625234 G08

Offset Voltage

vs Input Common Mode Voltage

	600	VS = 5V, 0V
	400
	200					–55°C
(µV)	0					25°C
(µV)	–200					25°C
VOLTAGE	–400			125°C
	–600			125°C
	–600
	–800
OFFSET	–800
	–1000
	–1200
	–1400
	–1400
	–1600
	–1800
	–2000 0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5
		INPUT COMMON MODE VOLTAGE (V)
										625234 G09

Offset Voltage vs Output Current		Input Bias Current
Offset Voltage vs Output Current	Warm-Up Drift vs Time	vs Common Mode Voltage

	3.0	VS = ±2.5V										20	VS = ±2.5V									3000	VS = 5V, 0V
	2.5												TA = 25°C									2000							125°C
	2.0										CHANGE IN OFFSET VOLTAGE (µV)		TA = 25°C									2000					25°C		125°C
	2.0																				INPUT BIAS CURRENT (nA)						25°C
OFFSET VOLTAGE (mV)	1.5											15										1000
	1.0																					0
	0.5																					0					–55°C
	0.5			–55°C																							–55°C
	0			–55°C								10										–1000
	0											10										–1000
	–0.5		25°C			125°C																–2000
	–1.0		25°C			125°C																–2000
	–1.0
	–1.5											5										–3000
	–2.0																					–4000
	–2.5																					–4000
	–2.5
	–3.0		–75	–50	–25	0	25	50	75	100		0	20	40	60	80	100	120	140	160		–5000	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5
	–100		–75	–50	–25	0	25	50	75	100		0	20	40	60	80	100	120	140	160		0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5
				OUTPUT CURRENT (mA)										TIME AFTER POWER-UP (sec)					625234 G11					COMMON MODE VOLTAGE (V)
									625234 G10										625234 G11												625234 G12
																															625234fc
8

LTC6252/LTC6253/LTC6254

TYPICAL PERFORMANCE CHARACTERISTICS

INPUT BIAS CURRENT (nA)

Input Bias Current vs Temperature

3000 VS = 5V, 0V

2500

2000
2000
1500					VCM = 4.5V


1000
1000
500
500		VCM = 2.5V
		VCM = 2.5V
0
0
–500–55
–500–55	–25		5			35	65	95	125
				TEMPERATURE (°C)
								624678 G13

VOLTAGE NOISE (500nV/DIV)

0.1Hz to 10Hz Voltage Noise

2000

1500
1000
500
0
–500
–1000
–1500
–2000 0	1	2	3	4	5	6	7	8	9	10

TIME (1s/DIV)

624678 G14

Input Noise Voltage and Noise

Current vs Frequency

		1000
(nV/√HZ)	(pA/√HZ)	100				en, VCM = 4.5V
						en, VCM = 4.5V
							in, VCM = 2.5V
VOLTAGE NOISE	CURRENT NOISE						in, VCM = 2.5V
		10
		1.0	en, VCM = 2.5V
			en, VCM = 2.5V			in, VCM = 4.5V
						in, VCM = 4.5V
		0.1	10		1k				10M 100M
		1	10	100	1k	10k	100k	1M	10M 100M
					FREQUENCY (Hz)
									624678 G15

Supply Current

vs Supply Voltage (Per Amplifier)

	5.0
	4.5
(mA)	4.0				125°C
	3.5				125°C

CURRENT
CURRENT	3.0					25°C
	3.0					25°C
	2.5					–55°C
SUPPLY	2.0
SUPPLY	1.5
	1.5
	1.0
	0.5
	0	0	1	2	3	4	5
			TOTAL SUPPLY VOLTAGE (V)

625234 G16

SHDN Pin Current

vs SHDN Pin Voltage

0.50

VS = 5V, 0V

0.25

(µA)

–0.25

–0.50

TA = 25°C

CURRENT

–0.75

–1.00

TA = –55°C

–1.25

–1.50

–1.75

SHDN

TA = 125°C

–2.00

–2.25

–2.50

–2.75

–3.00 0

0.5

1.5

2.5

3.5

4.5

SHDN PIN VOLTAGE (V)

625234 G19

Supply Current vs Input Common	Supply Current Per Amplifier
Mode Voltage (Per Amplifier)	vs SHDN Pin Voltage

	5	VS = 5V, 0V						5.0	VS = 5V, 0V
		AV = 1						4.5	VCM = 2.5V						TA = 125°C
(mA)	4				125°C		(mA)	4.0							TA = 125°C
(mA)	4				125°C		(mA)	3.5							TA = 25°C
								3.5							TA = 25°C
CURRENT							CURRENT	3.0							TA = –55°C
CURRENT					25°C		CURRENT	2.5
					25°C			2.5
SUPPLY							SUPPLY	2.0
SUPPLY	3				–55°C		SUPPLY	1.5
	3				–55°C

								1.0
								0.5
	2		1.25	2.25	3.25	4.25 4.75		0	0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5
	0.25		1.25	2.25	3.25	4.25 4.75			0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5
			COMMON MODE VOLTAGE (V)								SHDN PIN VOLTAGE (V)
						625234 G17												625234 G18

Minimum Supply Voltage,	Minimum Supply Voltage,
VCM = VS/2 (PNP Operation)	VCM = V+ – 0.5V (NPN Operation)

	16					VS = 5V, 0V				16					VS = 5V, 0V
	14					VS = 5V, 0V				14					VS = 5V, 0V
	14									14
	12									12
(mV)	12	–55°C							(mV)
	10	–55°C								10
										10	–55°C

VOLTAGE									VOLTAGE	8
	8									8
	8									6
	6									6
										4		25°C
OFFSET									OFFSET

	4		25°C							2			125°C
	2		125°C							2			125°C
			125°C							0


	0									–2
	–2 2	2.5	3	3.5	4	4.5	5	5.5		–4 2	2.5	3	3.5	4	4.5	5	5.5
			TOTAL SUPPLY VOLTAGE (V)									TOTAL SUPPLY VOLTAGE (V)
							625234 G20									625234 G21

625234fc

LTC6252/LTC6253/LTC6254

TYPICAL PERFORMANCE CHARACTERISTICS

Output Saturation Voltage	Output Saturation Voltage	Output Short-Circuit Current
vs Load Current (Output High)	vs Load Current (Output Low)	vs Supply Voltage

10	VS = ±2.5V					10	VS = ±2.5V					SHORT-CIRCUIT CURRENT (mA)	160	SINK	TA = 25°C
													120	SINK			TA = 125°C
													80				TA = 125°C
													80		TA = –55°C
1						1									TA = –55°C
1						1							40				PULSE TESTED
				TA = 125°C									40				PULSE TESTED
				TA = 125°C
			TA = 25°C							TA = 125°C			0
0.1						0.1			TA = 25°C				–40		TA = 25°C
0.1				TA = –55°C		0.1									TA = 25°C		TA = 125°C
(V)VOLTAGESATURATIONHIGH						(V)VOLTAGESATURATIONHIGH							–80				TA = 125°C
OUTPUT						OUTPUT				TA = –55°C		OUTPUT	–120	SOURCE
													–120	SOURCE			TA = –55°C
																	TA = –55°C
0.01		0.1	1	10	100	0.01		0.1	1	10	100		–160	1.5	1.75	2	2.25	2.5
0.01		0.1	1	10	100	0.01		0.1	1	10	100		1.25	1.5	1.75	2	2.25	2.5
		LOAD CURRENT (mA)						LOAD CURRENT (mA)						TOTAL SUPPLY VOLTAGE (±V)
				625234 G22							625234 G23							625234 G24

Open Loop Gain

	500								VS = 5V, 0V
	400								VS = 5V, 0V
	400								TA = 25°C
(µV)	300	RL = 100 TO MID SUPPLY
(µV)	200	RL = 100 TO MID SUPPLY
VOLTAGE	200					RL = 1k TO MID SUPPLY
	100					RL = 1k TO MID SUPPLY
	100
	0
OFFSET	0
	–100
		RL = 1k TO GND
INPUT	–200	RL = 1k TO GND
INPUT	–300					RL = 100 TO GND
	–300					RL = 100 TO GND
	–400
	–500 0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5
				OUTPUT VOLTAGE (V)
										625234 G25

Open Loop Gain

Gain vs Frequency (AV = 1)

	1600				VS = 2.7V, 0V			2
	1400				VS = 2.7V, 0V
	1400	RL = 100 TO MID SUPPLY			TA = 25°C
	1200				TA = 25°C			0
(µV)	1200							0
(µV)	1000		RL = 1k TO MID SUPPLY
VOLTAGE	800							–2
	800						(dB)
	600						(dB)	–4
OFFSET	400	RL = 1k TO GND					GAIN	–4
	400	RL = 1k TO GND
	200							–6
INPUT	0							–6
	0			RL = 100 TO GND
	–200			RL = 100 TO GND				–8	VS = ±2.5V
	–200							–8	VS = ±2.5V
	–400								TA = 25°C
	–600							–10	RL = 1k
	–600	0.5	1	1.5	2	2.5		–10		0.1	1	10	100	1000
	0	0.5	1	1.5	2	2.5		0.01		0.1	1	10	100	1000
			OUTPUT VOLTAGE (V)								FREQUENCY (MHz)
						625234 G26								625234 G27

Gain vs Frequency (AV = 2)

Open Loop Gain and Phase	Gain Bandwidth and Phase
vs Frequency	Margin vs Supply Voltage

	10							75				TA = 25°C	120			900								70
	8							65		GAIN		RL = 1k	105			850			PHASE MARGIN					60
										GAIN
	6							55				VS = ±2.5V	90		GAIN BANDWIDTH (MHz)	800								50	(DEG) MARGIN PHASE
	4										VS = ±1.35V	VS = ±2.5V	75			750								40
GAIN (dB)								45	PHASE		VS = ±1.35V			(DEG) PHASE
							GAIN (dB)	45	PHASE
	2							35					60			700								30
	0							25					45			650			GAIN BANDWIDTH PRODUCT					20
	–2	VS = ±2.5V						15			VS = ±1.35V		30			600								10
	–4	TA = 25°C						5					15			550	TA = 25°C							0
	–4	RL = 1k						5			VS = ±2.5V		15			550	TA = 25°C							0
	–6	RF = RG = 500						–5			VS = ±2.5V		0			500	RL = 1k							–10
	–6		0.1	1	10	100	1000	–5		1M	10M	100M	0			500		3	3.5	4	4.5	5		–10
	0.01		0.1	1	10	100	1000	300k		1M	10M	100M	1G			2.5		3	3.5	4	4.5	5	5.25
				FREQUENCY (MHz)			625234 G28				FREQUENCY (Hz)								TOTAL SUPPLY VOLTAGE (V)
							625234 G28					625234 G29										625234 G30
																							625234fc
10

LTC6252/LTC6253/LTC6254

TYPICAL PERFORMANCE CHARACTERISTICS

Gain Bandwidth and Phase		Common Mode Rejection Ratio
Margin vs Temperature	Output Impedance vs Frequency	vs Frequency

	1200	TA = 25°C										80		1000	VS = ±2.5V						110				VS = ±2.5V
	1200	TA = 25°C										80		1000	VS = ±2.5V					(dB)					VS = ±2.5V
	1100	RL = 1k			PHASE MARGIN				VS = ±2.5V			70		100						(dB)	90
	1100								VS = ±2.5V			70		100			AV = 10			COMMON MODE REJECTION RATIO	90
	1000											60					AV = 10
	1000								VS = ±1.35V			60		10							70
									VS = ±1.35V					10				AV = 1			70
	900											50						AV = 1
	900											50
														1				AV = 2			50
	800				GAIN BANDWIDTH PRODUCT							40						AV = 2
	800				GAIN BANDWIDTH PRODUCT							40
	700								VS = ±2.5V			30		0.1							30
	700								VS = ±2.5V			30
	600											20		0.01							10
(MHz)BANDWIDTHGAIN	600											20	(DEG)MARGINPHASE	IMPEDANCEOUTPUT)(
(MHz)BANDWIDTHGAIN						VS = ±1.35V							(DEG)MARGINPHASE	IMPEDANCEOUTPUT)(
						VS = ±1.35V						10									–10
	500		–35	–15	5	25	45	65	85	105		10		0.001		1	10	100	1000		–10	100k	1M	10M	100M	1G
	–55		–35	–15	5	25	45	65	85	105	125			0.1		1	10	100	1000		10k	100k	1M	10M	100M	1G
					TEMPERATURE (°C)												FREQUENCY (MHz)						FREQUENCY (Hz)		625234 G33
										625234 G31									625234 G32						625234 G33

POWER SUPPLY REJECTION RATIO (dB)

Power Supply Rejection Ratio vs Frequency

80
80									VS = ±2.5V
70									VS = ±2.5V


60
60
50									–PSRR
50
40						+PSRR


30
30
20
20
10
10
0
0
–1010
–1010	100	1k		10k	100k		1M	10M 100M			1G
			FREQUENCY (Hz)
										625234 G34

SLEW RATE (V/µs)

	Slew Rate vs Temperature
360
360		VS = ±2.5V
340
340
320

						RISING, VS = ±2.5V
300
300
280
280				FALLING, VS = ±2.5V
260				FALLING, VS = ±2.5V
260
240
240
220							RISING, VS = ±1.35V
200		FALLING, VS = ±1.35V


180
180
160		AV = –1, RL = 1k,
160		AV = –1, RL = 1k,
140		VOUT = 4VP-P (±2.5V), 2VP-P (±1.35V)
140		VOUT = 4VP-P (±2.5V), 2VP-P (±1.35V)
120		SLEW RATE MEASURED AT
120		MIDDLE 2/3 OF OUTPUT
		MIDDLE 2/3 OF OUTPUT
100–55			–30	5	20	45		70	95	120

TEMPERATURE (°C)

625234 G35

OVERSHOOT (%)

Series Output Resistor

vs Capacitive Load (AV = 1)

80 VS = ±2.5V

70		–	RS
		–	RS	VOUT
60	VIN	+		VOUT
60
				CL
50				CL
50
40		RS = 10Ω
		RS = 10Ω

30		RS = 20Ω
20
10		RS = 50Ω
0	10	100	1000	10000
		CAPACITIVE LOAD (pF)
				625234 G36

Series Output Resistor	Distortion vs Frequency	Distortion vs Frequency
vs Capacitive Load (AV = 2)	(AV = 1, 5V)	(AV = 1, 2.7V)

100

VS = ±2.5V

500Ω

–20

VS = ±2.5V

–20

RL = 100Ω, 3RD

500Ω

–30

VOUT = 2VP-P

–30

–

–40

AV = 1

–40

RL = 100Ω, 2ND

VOUT

–50

OVERSHOOT(%)

VIN

DISTORTION(dBc)

RL = 1k, 2ND

–60

RS = 20Ω

–70

RL = 100Ω, 3RD

–70

–80

RL = 1k, 3RD

–90

RL = 1k, 2ND

–90

–100

RS = 10Ω

–110

RL = 100Ω, 2ND

–110

= ±1.35V

RS = 50Ω

–120

RL = 1k, 3RD

–120

VOUT = 1VP-P

= 1

100

1000

10000

–130

0.1

100

–130

0.1

100

0.01

CAPACITIVE LOAD (pF)

FREQUENCY (MHz)

625234 G39

625234 G37

625234 G38

625234fc

LTC6252/LTC6253/LTC6254

TYPICAL PERFORMANCE CHARACTERISTICS

Distortion vs Frequency

Maximum Undistorted Output

–20

(AV = 2, 5V)

AV = 2, 2.7V)

Signal vs Frequency

VS = ±2.5V

–20

VS = ±1.35V

AV = 2

–30

VOUT = 2VP-P

–30

VOUT = 1VP-P

)

AV = –1

–40

AV = 2

–40

AV = 2

-P

–50

RL = 1k, 3RD

–50

RL = 100Ω, 3RD

DISTORTION (dBc)

–60

DISTORTION (dBc)

–60 RL = 100Ω, 2ND

OUTPUT VOLTAGE SWING

RL = 100Ω, 3RD

–70

–80

RL = 100Ω, 2ND

–90

–100

RL = 1k, 3RD

–100

= ±2.5V

–110

RL = 1k, 2ND

–110

RL = 1k, 2ND

TAS

= 25°C

–120

= 1k

–130

HD2, HD3 < –40dBc

0.1

100

0.1

100

0.1

100

0.01

FREQUENCY (MHz)

625234 G40

FREQUENCY (MHz)

625234 G42

625234 G41

SETTLING TIME (ns)

0.1% Settling Time

vs Output Step (Noninverting)

50	VS = ±2.5V		VOUT
45	VS = ±2.5V		VOUT
45	AV = 1	–
40	TA = 25°C	–
40	VIN	+
35	VIN	+	1k
35			1k
30
25

5
5
0–4	–3	–2	–1	0	1	2	3	4
			OUTPUT STEP (V)
							625234 G43

0.1% Settling Time
vs Output Step (Inverting)	SHDN Pin Response Time

VS = ±2.5V

VSHDN

AV = –1

TA = 25°C

2.5V/DIV

(ns)

TIME

SETTLING

500Ω

VOUT

500Ω

0.8V/DIV

VIN

–

VOUT

–4

–3

–2

–1

2µs/DIV

625234 G45

OUTPUT STEP (V)

AV = 1

625234 G44

VS = ±2.5V

RL = 1k

VIN = 1.6V

Large Signal Response

Small Signal Response

Output Overdriven Recovery

1V/DIV

INPUT		VIN
(50mV/DIV)		VIN
(50mV/DIV)		1V/DIV
0V		1V/DIV
0V		0V
		0V
OUTPUT		VOUT
(50mV/DIV)		2V/DIV
0V		0V

	100ns/DIV	625234 G46		20ns/DIV	625234 G47	AV = ±2, TA = 25°C 20ns/DIV	625234 G48
AV = 1	100ns/DIV		VS = ±2.5V	20ns/DIV		AV = ±2, TA = 25°C 20ns/DIV
VS = ±2.5V			RL = 1k			VS = ±2.5V, VIN = 3VP-P
TA = 25°C						RL = 1k, RF = RG = 500Ω
RL = 1k

625234fc

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