ST TSH94 User Manual

TSH94

High speed low power quad operational amplifier with standby position

Features

■Two separate standby functions: low consumption and high impedance outputs

■Low supply current: 4.5 mA

■High speed: 150 MHz - 110 V/µs

■Unity gain stability

■Low offset voltage: 3 mV

■Low noise 4.2 nV/√Hz

■Low cost

■Specified for 600 Ω and 150 Ω loads

■High video performance:

–Differential gain: 0.03%

–Differential phase: 0.07°

–Gain flatness: 6 MHz, 0.1 dB max at 10 dB gain

■High audio performance

Applications

■Set-top-boxes

■TV

■DVD players

Description

The TSH94 is a quad low-power high-frequency operation amplifier, designed for high-quality video signal processing. The device offers an excellent speed consumption ratio with 4.5 mA per amplifier for a 150 MHz bandwidth.

High slew rate and low noise also make it suitable for high-quality audio applications.

The TSH94 offers two separate complementary STANDBY functions: STANDBY 1 acting on the n° 2 operator and STANDBY 2 acting on the n° 3 operator.

D

SO-16

(Plastic micropackage)

Pin connections

(top view)

These functions reduce the consumption of the corresponding operator and put the output in a high impedance state.

December 2009

Doc ID 4023 Rev 5

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www.st.com

Schematic diagram	TSH94

1 Schematic diagram

Figure 1. Schematic diagram

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TSH94	Absolute maximum ratings and operating conditions

2 Absolute maximum ratings and operating conditions

Table 1.	Absolute maximum ratings
Symbol	Parameter	Value	Unit
VCC	Supply voltage (1)	14	V
Vid	Differential input voltage (2)	±5	V
Vi	Input voltage (3)	-0.3 to 12	V
Toper	Operating free-air temperature range	-40 to +125	°C
Tstg	Storage temperature range	-65 to +150	°C
	CDM: charged device model(4)	1.5	kV
ESD	HBM: human body model(5)	2	kV
	MM: machine model(6)	200	V

1.All voltage values, except differential voltage are with respect to network ground terminal.

2.Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.

3.The magnitude of input and output voltages must never exceed VCC+ +0.3 V.

4.Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins.

5.Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.

6.Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating

Table 2.		Operating conditions
Symbol		Parameter		Value		Unit
VCC		Supply voltage		7 to 12		V
V	icm	Common mode input voltage range	V	- +2 to V	+ -1	V
			CC	CC

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Electrical characteristics											TSH94
3	Electrical characteristics
Table 3.	V	CC	+ = 5 V, V	-	= -5 V, pin 8 connected to 0 V, pin 9 connected to V			CC		+, T	= 25° C
			CC							amb
	(unless otherwise specified)
Symbol					Parameter	Min.	Typ.			Max.	Unit
Vio	Input offset voltage Vic = Vo = 0 V									3	mV
	Tmin		≤ Tamb ≤ Tmax							5
Iio	Input offset current						1			2	μA
	Tmin		≤ Tamb ≤ Tmax							5
Iib	Input bias current						5			15	μA
	Tmin		≤ Tamb ≤ Tmax							20
ICC	Supply current (per amplifier, no load)						4.5			6	mA
	Tmin		≤ Tamb ≤ Tmax							8
CMR	Common mode rejection ratio Vic = -3 V to +4 V, Vo = 0 V					80	100				dB
	Tmin		≤ Tamb ≤ Tmax			70
SVR	Supply voltage rejection ratio VCC = ±5 V to ±3 V					60	75				dB
	Tmin		≤ Tamb ≤ Tmax			50
Avd	Large signal voltage gain RL = 10 kΩ, Vo = ±2.5 V					57	70				dB
	Tmin		≤ Tamb ≤ Tmax			54
	High level output voltage Vid = 1 V					3	3.5
VOH					RL = 600 Ω						V
					RL = 150 Ω	2.5	3
	Tmin ≤ Tamb ≤ Tmax.				RL = 150 Ω	2.4
	Low level output voltage Vid = 11 V						-3.5			-3
VOL					RL = 600 Ω						V
					RL = 150 Ω		-2.8			-2.5
	Tmin ≤ Tamb ≤ Tmax.				RL = 150 Ω					-2.4
	Output short-circuit current Vid = ±1 V					20	36
					Source
Io					Sink	20	40				mA
	Tmin ≤ Tamb ≤ Tmax.				Source	15
					Sink	15
GBP	Gain bandwidth product										MHz
	AVCL = 100, RL = 600 Ω, CL = 15 pF, f = 7.5 MHz					90	150
fT	Transition frequency						90				MHz
SR	Slew rate										V/μs
	Vin = -2 to +2 V, AVCL = +1, RL = 600 Ω, CL = 15 pF					70	110
en	Equivalent input voltage noise Rs = 50 Ω, f = 1 kHz						4.2				nV/√Hz
φm	Phase margin AVM = +1						35				Degrees
VO1/VO2	Channel separation f = 1 MHz to 10 MHz						65				dB
Gf	Gain flatness f = DC to 6 MHz, AVCL = 10 dB									0.1	dB
THD	Total harmonic distortion f = 1 kHz, Vo = ±2.5 V, RL = 600 Ω						0.01				%

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TSH94						Electrical characteristics
Table 3.	V	CC	+ = 5 V, V	- = -5 V, pin 8 connected to 0 V, pin 9 connected to V				+, T	= 25° C
				CC			CC amb
	(unless otherwise specified) (continued)
Symbol				Parameter	Min.	Typ.		Max.	Unit
G	Differential gain f = 3.58 MHz, AVCL = +2, RL = 150 Ω					0.03			%
Δϕ	Differential phase f = 3.58 MHz, AVCL = +2, RL = 150 Ω					0.07			Degree

Standby mode

Table 4.

V

CC

+ = 5 V, V

-

= -5 V, T

= 25° C (unless otherwise specified)

CC

amb

Symbol

Parameter

Min.

Typ.

Max.

Unit

V

STBY

Pin 8/9 threshold voltage for STANDBY mode

V

+ -2.2

V

+ -1.6

V

+ -1.0

V

CC

CC

CC

Total consumption

ICC-STBY

Standby 1 & 2 = 0

13.7

mA

Standby 1 & 2 = 1

13.7

Standby 1 = 1, Standby 2 = 0

9.4

Isol

Input/output isolation (f = 1 MHz to 10 MHz)

70

dB

ton

Time from standby mode to active mode

200

ns

toff

Time from active mode to standby mode

200

ns

ID

Standby driving current

2

pA

IOL

Output leakage current

20

pA

IIL

Input leakage current

20

pA

Table 5.	Standby control pin status
		Logic input			Status
Standby 1			Standby 2	Op-amp 2	Op-amp 3	Op-amps 1 & 4
	0		0	Enable	Standby	Enable
	0		1	Enable	Enable	Enable
	1		0	Standby	Standby	Enable
	1		1	Standby	Enable	Enable

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Electrical characteristics	TSH94

Figure 2. Standby position

To put the device in standby, apply a logic level on the standby MOS input. Because ground is a virtual level for the device, the threshold voltage is to VCC+ (VCC+- 1.6 V typ, see

Table 4).

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TSH94

Electrical characteristics

Figure 3. Closed-loop frequency response

Figure 4. Gain flatness and phase shift

versus frequency

Figure 5. Open-loop frequency response and Figure 6. Static open-loop voltage gain phase shift

Figure 7. Audio bandwidth frequency

Figure 8. Large signal follower response

response and phase shift (TSH94

vs standard 15 MHz audio op-amp)

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