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TC7652

LOW NOISE, CHOPPER-STABILIZED OPERATIONAL AMPLIFIER

TelCom Semiconductor Inc => Microchip 

LOW NOISE, CHOPPER-STABILIZED

OPERATIONAL AMPLIFIER

TC7652

ABSOLUTE MAXIMUM RATINGS*

Total Supply Voltage (VDD to VSS) ........................... +18V

Input Voltage ........................ (VDD + 0.3V) to (VSS – 0.3V)

Voltage on Oscillator Control Pins ................... VDD to VSS

Duration of Output Short Circuit ......................... Indefinite

Current Into Any Pin ................................................. 10mA

While Operating (Note 1) ..................................100µA

Package Power Dissipation (TA ≤ 70°C)

8-Pin Plastic DIP ............................................. 730mW

14-Pin Plastic DIP ........................................... 800mW

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

Operating Temperature Range

C Device ................................................ 0°C to +70°C

I Device ............................................. – 25°C to +85°C

Lead Temperature (Soldering, 10 sec) ................. +300°C

*Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above

those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of

the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to Absolute

Maximum Rating Conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS: VDD = +5V, VSS = – 5V, TA = +25°C, unless otherwise indicated.

Symbol Parameter

Test Conditions

Min Typ Max Unit

VOS

TCVOS

Input Offset Voltage

Average Temperature Coefficient of

Input Offset Voltage

TA = +25°C

0°C < TA < +70°C

0°C < TA < +70°C

—

±2

±5

µV

—

±10

—

—

0.01

0.05 µV/°C

VOS/DT

IBIAS

IBIAS

IOS

RIN

OL

VOUT

Offset Voltage vs Time

Input Bias Current

(CLK On)

Input Bias Current

(CLK Off)

Input Offset Current

Input Resistance

Large Signal Voltage Gain

Output Voltage Swing

(Note 2)

TA = +25°C

0°C < TA < +70°C

– 25°C < TA < +85°C

TA = +25°C

0°C < TA < +70°C

– 25°C < TA < +85°C

RL = 10kW, VOUT = ±4V

RL = 10kW

RL = 100kW

—

150

—

nV/mo

—

30

100

pA

—

100

—

—

250

1000

—

15

30

pA

—

35

—

—

100

—

—

25

150

pA

—

1012

—

W

120

150

—

dB

±4.7 ±4.85

—

V

—

±4.95

—

CMVR

Common-Mode

Voltage Range

– 4.3

—

+3.5

V

MRR

Common-Mode

Rejection Ratio

CMVR = – 4.3V to +3.5V

120

140

—

dB

PSRR

Power Supply

Rejection Ratio

±3V to ±8V

120

140

—

dB

eN

Input Noise Voltage

IN

Input Noise Current

RS = 100W, DC to 1Hz

DC to 10Hz

f = 10Hz

—

0.2

1.5

µVP-P

—

0.7

5

µVP-P

—

0.01

—

pA/√Hz

GBW

Unity-Gain Bandwidth

—

0.4

—

MHz

SR

Slew Rate

CL = 50 pF, RL = 10kW

—

1

—

V/µsec

Overshoot

—

15

—

%

VDD, VSS

Operating Supply Range

5

—

16

V

IS

Supply Current

No Load

—

1

3

mA

fCH

Internal Chopping Frequency

Pins 12 – 14 Open (DIP)

100

275

—

Hz

Clamp ON Current (Note 3)

RL = 100kW

25

100

—

µA

Clamp OFF Current (Note 3)

– 4V ≤ VOUT < +10V

—

1

—

pA

NOTES: 1. Limiting input current to 100µA is recommended to avoid latch-up problems. Typically, 1mA is safe; however, this is not guaranteed.

2. Output clamp not connected. See typical characteristics curves for output swing versus clamp current characteristics.

3-282

TELCOM SEMICONDUCTOR, INC.

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