TC7650IJD Microchip Technology, TC7650IJD Datasheet - Page 2

• Manufacturer Part Number: TC7650IJD
• Description: IC OPAMP CHOPPER STAB 14CDIP
• Manufacturer: Microchip Technology

Specifications of TC7650IJD

• Amplifier Type: Chopper (Zero-Drift)
• Number Of Circuits: 1
• Slew Rate: 2.5 V/µs
• Gain Bandwidth Product: 2MHz
• Current - Input Bias: 1.5pA
• Voltage - Input Offset: 0.7µV
• Current - Supply: 2mA
• Voltage - Supply, Single/dual (±): 4.5 V ~ 16 V, ±2.25 V ~ 8 V
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 14-CDIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• Current - Output / Channel: -
• -3db Bandwidth: -

TC7650
General Description
The TC7650 CMOS chopper stabilized operational
amplifier practically removes offset voltage error terms
from system error calculations. The 5µV maximum V
specification, for example, represents a 15 times
improvement over the industry standard OP07E. The
50nV/°C offset drift specification is over 25 times lower
than the OP07E. The increased performance elimi-
nates V
adjustment and the reliability problems caused by dam-
aged trimmers.
The TC7650 performance advantages are achieved
without the additional manufacturing complexity and
cost incurred with laser or "zener zap" V
niques.
Functional Block Diagram
DS21463B-page 2
OS
trim procedures, periodic potentiometer
Inputs
Output
Clamp
*
For 8-Pin DIP, connect to V ss
A
B
Output Clamp
NULL
Null
Main
Amplifier
Circuit
Null
Amplifier
OS
B
Compensation
trim tech-
Intermod
OS
The TC7650 nulling scheme corrects both DC V
errors and V
amplifier alternately corrects its own V
main amplifier V
stored on two user supplied external capacitors. The
capacitors connect to the internal amplifier V
points. The main amplifier input signal is never
switched. Switching spikes are not present at the
TC7650 output.
The 14-pin dual-in-line package (DIP) has an external
oscillator input to drive the nulling circuitry for optimum
noise performance. Both the 8 and 14-pin DIPs have
an output voltage clamp circuit to minimize overload
recovery time.
B
Oscillator
A
A
B
OS
drift errors with temperature. A nulling
*C
OS
TC7650
RETN
C
C
14-Pin DIP Only
B
A
error. Offset nulling voltages are
INT/EXT
EXT CLK IN
CLK OUT
©
2002 Microchip Technology Inc.
Output
OS
errors and the
OS
null
OS