Features VS = ±5V, TA = 25°C, RF = 1k, RG = 174, RL = 100, AV = AV(MAX) = 10 Typical values unless specified. -3dB BW 130MHz Gain control BW 100MHz Adjustment range (typical over temp) 70dB Gain matching (limit) ±0.6dB Slew rate 1800V/µs Supply current (no load) 27mA Linear output current ±75mA Output voltage (RL = 100) ±3.2V Input voltage noise 7.7nV/ Input current noise 2.4pA/ THD (20MHz, RL = 100, VO = 2VPP) -53dBc Replacement for CLC520   Description The LMH™6502 is a wideband DC coupled differential input voltage controlled gain stage followed by a high-speed current feedback Op Amp which can directly drive a low impedance load. Gain adjustment range is more than 70dB for up to 10MHz. Maximum gain is set by external components and the gain can be reduced all the way to cut-off. Power consumption is 300mW with a speed of 130MHz. Output referred DC offset voltage is less than 350mV over the entire gain control voltage range. Device-to-device Gain matching is within ±0.6dB at maximum gain. Furthermore, gain at any VG is tested and the tolerance is guaranteed. The output current feedback Op Amp allows high frequency large signals (Slew Rate = 1800V/µs) and can also drive heavy load current (75mA). Differential inputs allow common mode rejection in low level amplification or in applications where signals are carried over relatively long wires. For single ended operation, the unused input can easily be tied to ground (or to a virtual half-supply in single supply application). Inverting or non-inverting gains could be obtained by choosing one input polarity or the other. To provide ease of use when working with a single supply, VG range is set to be from 0V to +2V relative to pin 11 potential (ground pin). In single supply operation, this ground pin is tied to a "virtual" half supply. LMH6502 gain control is linear in dB for a large portion of the total gain control range. This makes the device suitable for AGC circuits among other applications. For linear gain control applications, see the LMH6503 datasheet. The LMH6502 is available in the SOIC-14 and TSSOP-14 package. Applications • Variable attenuator • AGC • Voltage controller filter • Video imaging processing

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Typical Application click for larger image	Connection Diagram *click for larger image
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Datasheet

Title		Size	Date	Other Language
	LMH6502 Wideband, Low Power, Linear-in-dB Variable Gain Amplifier	941 Kbytes	25-Jun-04	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-1808: Application Note 1808 LMH730033 Evaluation Board	683 Kbytes	3-Mar-08

More Application Notes

Title		Size	Date	Other Language
	AN-1681: Application Note 1681 Design Migration from the LM1881 to the LMH1980	143 Kbytes	2-Aug-07	日本語
	AN-1599: Application Note 1599 LMH1981 Evaluation Board Instruction Manual	503 Kbytes	11-Feb-09	日本語
	AN-1618: Application Note 1618 LMH1980 Evaluation Board Instruction Manual	674 Kbytes	19-Jul-07	日本語

Design Tools

Title	Size	Date
CLC730033 SOIC-14 Evaluation Board - Included with LMH6502MA Sample Order	325 Kbytes	2-Feb-04

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH6502MA	VIP 10	0	12801	0	0	1155000	4	327734403
LMH6502MAX	VIP 10	0	12801	0	0	1155000	4	327734403
LMH6502MT	VIP 10	0	12801	0	0	1155000	4	327734403
LMH6502MTX	VIP 10	0	12801	0	0	1155000	4	327734403

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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