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High-impedance Buffer Amplifier System

TCA-1MEG

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Features & Benefits

  • Bandwidth - DC to ≥500 MHz
  • Input Impedance - 1 MΩ / 10 pF
  • Bandwidth Limiting - Full/100 MHz/20 MHz
  • Input Coupling - DC/AC/GND
  • Includes P6139A, 500 MHz, 10x Passive Probe
  • TekConnect Interface Delivers Superior Signal Fidelity, Unparalleled Versatility, and Ease-of-use

Applications

  • Verification, Characterization, and Debug of Sophisticated Designs in Communications, Computer, and Semiconductor Electronic Environments
    • Jitter and Timing Analysis (Computer Systems)
    • Disk Drive Analysis
    • Investigation of Transient Phenomena
    • Spectral Analysis
    • Power Supplies/Inverters (Switching and Linear)
    • Semiconductor Devices (SCRs, IGBTs, FETs, CMOS)
    • Electronic Ballasts
    • Industrial/Consumer Electronics
    • Mobile Communications (Phone, Satellite, Relay Stations)
    • Motor Drives
    • Transportation Systems (Electronic Vehicles, Electric Trains, Locomotives, Avionics)

Tektronix award-winning TDS/CSA7000B DPO and TDS6000 Series oscilloscopes allow engineers to make high-speed measurements quickly and efficiently. In addition to these high-speed measurements, many of today's designers also face the challenges of measuring high-voltage, current, power, or even microvolt-level signals to gain a more complete understanding of their designs.

The TekConnect® family of amplifiers, probes, and adapters make it the ideal solution for such challenges, delivering a variety of acquisition capabilities through the use of existing compatible TekConnect and TEKPROBE™ measurement tools.

TekConnect® TCA-1MEG Buffer Amplifier System Expands the Functionality of Tektronix High-performance Oscilloscopes

The TCA-1MEG high-impedance buffer amplifier system extends the capabilities of Tektronix high-performance oscilloscopes, making them ideal for a variety of general-purpose measurements. The TCA-1MEG amplifier system provides a 1 MΩ path that is easily removed and replaced with a wide array of TekConnect probes, amplifiers, and adapters.

This amplifier system delivers versatility to Tektronix high-performance oscilloscopes through the addition of input coupling (selectable), bandwidth limit (selectable), and a 1 MΩ input that provides access to a wide array of measurement solutions. These solutions include general-purpose passive probes, high-voltage probes (passive single-ended and active differential), microvolt differential probes, and current probes.

With this tool, Tektronix high-performance oscilloscopes may now perform measurements such as primary and secondary power supply voltage levels, currents, and elevated voltages, and assess the power requirements of the device-under-test.

For today's high-speed measurement solutions, having the 50 Ω and 1 MΩ terminations on the same input path compromises signal fidelity. By making the 1 MΩ path replaceable, the TCA-1MEG high-impedance buffer amplifier system eliminates a permanent degradation of the high-speed signal path. This also allows users to easily and quickly configure each channel for the input characteristics required for their measurements. By exchanging the TCA-1MEG for a high-performance 50 Ω path or other high-speed probing solution, maximum signal fidelity is maintained at the oscilloscope's input.

TekConnect® Interface Delivers Superior Signal Fidelity, Unparalleled Versatility, and Ease-of-use

The TekConnect interface ensures superior signal fidelity with useful bandpass up to 18 GHz at the oscilloscope input, while offering unparalleled versatility with the world's widest array of accessory signal acquisition solutions for high-performance, real-time oscilloscopes. This interface delivers a more robust oscilloscope interface for next-generation products with multi-GHz analog bandwidths, overcoming many of the inherent bandwidth limitations of BNC-based interfaces. The TekConnect interface preserves a low-voltage standing wave ratio (VSWR) 50 Ω environment as well as a reliable electrical connection. A convenient, one-button release and locking mechanism provides quick, easy installation and removal of probes, amplifiers, and adapters.

Characteristics

Model Specifications

Characteristic

Description

Bandwidth (-3 dB)

DC to ≥500 MHz

(host instrument bandwidth >1.5 GHz)

Probe Tip Bandwidth (with P6139A at -3 dB)

DC to ≥500 MHz

(host instrument bandwidth >1.5 GHz)

BW Limit

Full, 100 MHz ±25%, 20 MHz ±25%

DC Gain Accuracy

±3% (TCA-1MEG with or without P6139A probe)*1

Propagation Delay (Input-to-Output)

<2 ns

Input Impedance

1 MΩ / 10 pF (at DC)

Maximum Input Voltage (Derated with Frequency)

150 VRMS CAT I

100 VRMS CAT II

Above 200 kHz derate at 20 dB per decade; limit to 13 Vpk AC at 3 MHz and above

*1 Probe calibration required in TekConnect host instrument.

Typical

Characteristic

Description

Displayed System Input Offset

±0.2 div

Rise Time (calculated small signal tr = 0.4/F3 dB)

≤0.8 ns (minimum rise time)

Linear Dynamic Range

The lesser of ±5 divisions or the dynamic range of the TekConnect host instrument

Linearity

±0.2%

Nominal

Inputs - 1 (TEKPROBE™ BNC 1 MΩ).

Input Coupling - DC, AC, or GND.

Physical Characteristics

Dimensions

mm

in.

Length

180.08

4.255

Width

31.5

1.240

Height

46.1

1.815

Safety Certifications U.S. NRTL Listing - UL3111-1.

UL3111-2-032.

 

Canadian Certification - CAN/CSA C22.2 No.1010.1.

CAN/CSA C22.2 No.1010.2.032.

 

European Union Compliance - EN61010-1/A2.

EN61010-2-032.

 

Other - IEC61010-1/A2.

IEC61010-2-032.

 

GPIB Programmable - Through Host Instrument Commands.

Power Requirements - TekConnect.

Adapter Model Compatibility - Refer to TDS7000 Series TekConnect Adapters Compatibility Table.

Warranty - One year.

TekConnect® Amplifier, Adapters, and Probes Compatibility*2

Accessory Type

Oscilloscope

TekConnect Amplifiers, Adapters, and Probes

TDS6000B TDS/CSA7000B TekConnect Series

TCA-1MEG High-impedance Buffer Amplifier (P6139A Included)

TCA-BNC Adapter (Standard w/ TDS7154 / TDS7254 / CSA7154)

TCA-SMA Adapter (Standard w/ TDS7404 / CSA7404)

TCA-N Adapter

TCA75 Adapter

6 GHz

8 GHz

4 GHz

1.5 GHz

2.5 GHz

Instrument Input Connection

TekConnect Interface

TEKPROBE BNC 1 MΩ-to- TekConnect Interface

TEKPROBE BNC 50 Ω-to- TekConnect Interface

SMA-to- TekConnect Interface

N-to-TekConnect Interface

75-to-50 Ω TekConnect Adapter

Instrument Input Impedance

TekConnect Interface Probes, Amplifier and Adapter Dependent

1 MΩ / 10 pF

50 Ω

50 Ω

50 Ω

50 Ω

Passive Voltage Probes (1x)

P6101B w/ TCA-1MEG

P6101B

N/A

N/A

N/A

N/A

Passive Voltage Probes (10x)

P6139A w/ TCA-1MEG

P6139A

N/A

N/A

N/A

N/A

50 Ω Divider Voltage Probes

P6150 w/ TCA-SMA

P6158 w/ TCA-BNC

N/A

P6158

P6150

N/A

N/A

Active Voltage Probes General

P6245 w/ TCA-BNC

P6243 w/ TCA-BNC

N/A

P6245

P6243

N/A

N/A

N/A

Active Voltage Probes >2 GHz

P7260*3

P7240*3

P6249 w/ TCA-BNC

P6241 w/ TCA-BNC

N/A

P6249

P6241

N/A

N/A

N/A

Differential Voltage Probes >2 GHz

P7380*3

P7380SMA*3

P7350*3

P7350SMA*3

P6330 w/ TCA-BNC

P7380*3

P7380SMA*3

P7350*3

P7350SMA*3

P7330*3

P6330 w/ TCA-BNC

P7350*3

P7350SMA*3

P7330*3

P6330 w/ TCA-BNC

N/A

P6330

N/A

N/A

N/A

Differential Voltage Probes <1.8 GHz

<8 V Logic

P6248 w/ TCA-BNC

P6247 w/ TCA-BNC

P6246 w/ TCA-BNC

N/A

P6248

P6247

P6246

N/A

N/A

N/A

Differential Voltage Probes Microvolt

ADA400A w/ TCA-1MEG

ADA400A

N/A

N/A

N/A

N/A

High-voltage Probes Differential

P5205 w/ TCA-1MEG

P5210 w/ TCA-1MEG

P5205

P5210

N/A

N/A

N/A

N/A

High-voltage Probes Single-ended

P5100 w/ TCA-1MEG

P6015A w/ TCA-1MEG

P5100

N/A

N/A

N/A

N/A

Current Probe AC/DC <15 A

TCP202 w/ TCA-BNC

N/A

TCP202

N/A

N/A

N/A

Current Probe AC/DC 5 mA to 20 A

TCP300/TCP400/AM5030S w/ TCA-BNC or TCA-1MEG

TCP300 / TCP400 / AM5030S

TCP300 / TCP400 / AM5030S

N/A

N/A

N/A

Current Probe AC High Frequency

CT6 w/ TCA-BNC

CT1 w/ TCA-BNC

N/A

CT6 CT1

N/A

N/A

   

Current Probe AC Low Frequency

P6021 w/ TCA-1MEG

P6022 w/ TCA-1MEG

P6021

P6022

N/A

N/A

N/A

   

O/E Converter Probes

P6701B w/ TCA-BNC

P6703B w/ TCA-BNC

N/A

P6701B

P6703B

N/A

N/A

   

*2 Firmware version 2.1 or greater required for all referenced oscilloscopes.

*3 P7225, P7240, P7260, P7330, P7350, P7350SMA, P7380, and P7380SMA are high-speed active and differential probing solutions for Tektronix oscilloscopes with TekConnect interface. These probes require no other adapters.

Please refer to TekConnect Adapters data sheet for more information about adapters.

Ordering Information

Service Options

Opt. C3 - Calibration Service 3 Years.

Opt. C5 - Calibration Service 5 Years.

Opt. D1 - Calibration Data Report.

Opt. D3 - Calibration Data Report 3 Years (with Opt. C3).

Opt. D5 - Calibration Data Report 5 Years (with Opt. C5).

Opt. R3 - Repair Service 3 Years.

Opt. R5 - Repair Service 5 Years.

Opt. SILV600 - Standard Warranty Extended to 5 Years.

Recommended Accessories
Passive Voltage Probes

P6101B - 15 MHz, 1x, Passive.

P6139A - 500 MHz, 10x, Passive.

High-voltage Probes

P5205 - 1.3 kVRMS, 100 MHz, Active Differential.

P5210 - 4.4 kVRMS, 50 MHz, Active Differential.

P6015A - 20 kV, 1000x, 75 MHz, Passive.

P5100 - 2.5 kV, 100x, 250 MHz, Passive.

Microvolt Differential Probe

ADA400A - 1 MHz, 100x/10x/1x/0.1x, Microvolt Differential Preamplifier.

Current Measurement Tools

AM503S - AC/DC, 5 mA to 700 A, Current Amplifier Measurement System. (Extended Current Capability by ordering additional Current Probes).

P6021 - AC, 60 MHz, Current Probe.

P6022 - AC, 120 MHz, Current Probe.

Cables and Terminations

012-0057-01 - 50 Ω BNC to BNC Coaxial Cable.

012-0482-00 - 50 Ω BNC to BNC Coaxial Cable, Precision 1%, Male-to-Male.

011-0049-02 - 50 Ω feed through termination.