LM2408 datasheet(2/8 Pages) NSC

2 / 8 page

Absolute Maximum Ratings

(Notes 1 and 3)

Supply Voltage (VCC)

95V

Bias Voltage (VBB)

16V

Input Voltage (VIN)

05V to VBIAS a 05V

Storage Temperature Range (TSTG)

65 Cto a150 C

Lead Temperature (Soldering k10 sec)

300 C

ESD Tolerance

2 kV

Operating Ranges (Note 2)

VCC

60V to a85V

VBB

8V to a15V

VIN

1V to a7V

Case Temperature (TCASE)

20 Cto a100 C

Do not operate the part without a heat sink

Electrical Characteristics

Unless otherwise noted VCC ea80V VBB ea12V VIN ea32V (at LM2408 input pins) CL e 8 pF Output e 40 VPP at

1 MHz TA e 25 C

Symbol

Parameter

Conditions

LM2408

Units

Min

Typical

Max

ICC

Supply Current

Per Channel No Output Load

IBB

Bias Current

VOUT

DC Output Voltage

No Input Signal

VDC

DC Voltage Gain

No Input Signal

Gain Matching

(Note 4)

Linearity Error

(Notes 4 5)

Rise Time

10% to 90% f e 1 MHz

Fall Time

90% to 10% f e 1 MHz

Note 1

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur

Note 2

Operating ratings indicate conditions for which the device is functional but do not guarantee specific performance limits For guaranteed specifications and

test conditions see the Electrical Characteristics The guaranteed specifications apply only for the test conditions listed Some performance characteristics may

change when the device is not operated under the listed test conditions

Note 3

All voltages are measured with respect to GND unless otherwise specified

Note 4

Calculated value from Voltage Gain test on each channel

Note 5

Linearity Error is defined as the variation in DC gain from VIN ea 190V to VIN ea450V

Note 6

Input from signal generator tR tF k 1 ns

AC Test Circuit

TLH12683 – 3

Note

8 pF is total load plus parasitic capacitance

Note

Adjust Vtest for a32V DC at LM2408 input pins

FIGURE 2 Test Circuit (One Channel)

Figure 2 shows a typical test circuit for evaluation of the

LM2408 This circuit is designed to allow testing of the

LM2408 in a 50X environment such as a pulse generator

oscilloscope or network analyzer The 4950X resistor at the

output forms a 1001 voltage divider when connected to a

50X load

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