2540C - B&K PRECISION CORPORATION

Data Sheet

Mixed Signal Oscilloscopes

2540C Series

Technical data subject to change

Features & Beneﬁts

n Bandwidth up to 200 MHz

n 1 GSa/s maximum sample rate

n 14 Mpts maximum record length

n 16 digital channels with logic analyzer (MSO

upgrade)

n Serial bus decoding supporting I2C, SPI,

UART/RS232, CAN, and LIN

protocols (Decode upgrade)

n Built-in Function and Arbitrary Waveform

Generator comes standard on all models

n Large 8” widescreen display with 256-level

color gradient

n 60,000 wfms/s maximum waveform capture

rate

n Compact footprint and lightweight

n High speed hardware-based pass/fail testing

function and masking

n Segmented acquisition history waveform record

function (record length up to 80,000 frames)

n Trigger types: Edge, Slope, Pulse, Video,

Window, Runt, Interval, Dropout, Pattern,

Serial

n FFT including seven other math functions:

Addition, Subtraction, Multiplication,

Division, Integration, Differential, and Square

Root

n 36 automatic measurements supporting

statistics, gating, math, history and reference

measurements

n Multi-language user interface and built-in

context sensitive help

n Software provided for remote PC control

n Front panel USB port for saving and recalling

waveforms, setups, and screenshots

n Standard LAN and USBTMC-compliant USB

device port

n Selectable 50 Ω and 1 MΩ input coupling

Model 2540C 2540C-MSO 2542C 2542C-MSO 2544C 2544C-MSO

Bandwidth 70 MHz 100 MHz 200 MHz

Channels 2 2 2

Digital

Channels Upgradeable 16 Upgradeable 16 Upgradeable 16

The 2540C Digital Storage and Mixed Signal

Oscilloscope (MSO) Series delivers advanced

features and debug capabilities for a wide range

of applications at an entry-level price point. With

up to 200 MHz bandwidth in a 2-channel con-

ﬁguration, each model offers a maximum sample

rate of 1 GSa/s, and a maximum memory depth of

14 Mpts. In addition, these oscilloscopes provide

an 8” color display with 256 levels of color

grading combined with a high waveform update

rate up to 60,000 wfms/sec, which allows the

instruments to capture infrequent glitches with

excellent signal ﬁdelity. The logic analyzer and

decode software provides 16 additional digital

channels and serial bus decoding for I2C, SPI,

UART/RS232, CAN, and LIN protocols.

Maximize productivity using extensive features

such as digital ﬁltering, waveform recording,

pass/fail limit testing, and automatic

measurements. The built-in 25 MHz function/

arbitrary waveform generator (AWG) comes

standard with all models and provides stimulus

output of 4 arbitrary waveforms, sine, square,

ramp, pulse, DC, noise, cardiac, Gaussian pulse,

and exponential rise/fall waveforms to the device

under test.

The 2540C Series oscilloscopes are ideal for

applications in design, education, service, and

repair. This instrument offers a comprehensive set

of tools to capture signal anomalies, decode

serial bus protocols, and help speed up debug

and analysis. The MSO and decoding

functionalities are available for upgrade in the

ﬁeld with the purchase of a license key.

Mixed Signal Oscilloscopes

2540C Series

2www.bkprecision.com

Front panel

USB host port

Connect your USB ash drive to

conveniently store and recall

waveform data, setups, and

screenshots.

Auto setup

Vertical, horizontal, and trigger

controls are automatically

adjusted for fast signal display.

8-inch TFT-LCD display

8-inch high resolution TFT-LCD display lets

you see more details in your signal.

Advanced Triggering

9 standard and 5 serial protocol

triggering modes.

Arbitrary Waveform

Generator (AWG)

Built-in 25 MHz AWG comes

standard in all models.

Rear panel

Kensington security slot

Helps to secure your oscilloscope and

prevent theft.

AWG Output

Pass/Fail or Trig Out Output

LAN and USB ports enable

remote control from a PC.

Input fuse holder AC line input

Serial Decoding

Decode and analyze I2C, SPI, UART/RS232, CAN, and

LIN protocols and display results in binary, decimal,

hex, or ASCII in real-time. Enabled with decode

upgrade or try 30 times for free with each unit.

16-Channel Digital Ports

Connect a logic analyzer probe to access

16 digital channels enabled with MSO

upgrade or try 30 times for free with each

unit.

Intuitive channel operation

Both channels in the 2540C Series are

clearly indicated by their own color,

labeled on the input, knobs, and display.

Mixed Signal Oscilloscopes

2540C Series

3www.bkprecision.com

Waveform History and Recording

Quickly scroll through millions of points with History Mode’s playback

functionality to nd dicult to capture events. Eliminate unnecessary idle

signals and dead-time by selectivity capturing up to 80,000 segments.

Function and Arbitrary Waveform Generator

A powerful 25 MHz function/arbitrary waveform generator comes standard in the

2540C Series. Use complimentary software to generate waveforms and load up

to 4 arbitrary waveforms into the instrument. Built-in functions are sine, square,

ramp, pulse, DC, noise, cardiac, Gaussian pulse, and exponential rise/fall.

The tools you need

Display 36 automated measurements that include voltage, time, and statistics.

Arithmetic and FFT functions can be performed on analog channels and two

reference signals.

Color Grading

With 256 levels of color grading, the most common occurrences are represented

in red and the least common are represented in purple. Easily spot outliers as they

will persist for a user specied time.

Automatic Waveform Math and Measurement

Hardware Pass/Fail and Masking

Perform up to 40,000 pass/fail decisions a second. Easy to generate masking

templates help capture anomalies even with complicated waveforms.

PC software is provided (free download at www.bkprecision.com) for seamless

integration between the oscilloscope and PC. Capture and transfer waveforms,

screen images, setups and measurement results to a Windows PC via the USB

device port on the back of the instrument. A USB host port on the front allows for

quick and easy screen saving.

PC Connectivity

All traditional digital oscilloscope features come standard in the 2540C Series: Cursors, 50 Ω input coupling, reference signals, persist, rolling, noise

rejection and deskew.

Mixed Signal Oscilloscopes

2540C Series

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The tools you need

16 channel logic probe - LP2540C

The 16-channel color-coded logic probe consists of two eight-channel

pods. To make contact with the DUT, the probe connects directly to

square pins or clips to test points using the included grabbers. With an

input capacitance of only 8 pF and 100 kΩ input impedance, the probe

protects the integrity of your signal. The probe is included with MSO

models.

Buy now, upgrade later

Install the MSO and decode licenses at any time or try before you buy with the 30 trial license on each model. Any DSO model in the 2540C Series can be upgraded

to an MSO. Installation is quick and easily done within the oscilloscope menu. To purchase a license key, please ﬁll out the license request form or visit the 2540C

Series accessories page.

MSO license - LA2540C

The 16 integrated digital channels are displayed along-side analog

channels allowing users to view up to 18 time-correlated channels with

shared triggering and acquisition on one screen. The LA2540C license

enables the 16 digital channels of the 2540C Series and is included with

MSO models.

Decode license - DC2540C

Select up to 2 serial bus protocols I2C, SPI, UART/RS232, CAN, and LIN and

decode concurrently from analog and MSO channels. Decode information in

real-time and display in binary, decimal, hex, or ASCII.

Available Upgrades

DSO Models MSO Models

16-channel logic probe (LP2540C) Optional Standard

MSO license (LA2540C) Optional Standard

Decode license (DC2540C) Optional Optional

Included in all MSO models

Mixed Signal Oscilloscopes

2540C Series

5www.bkprecision.com

Speciﬁcations

Model 2540C / 2542C / 2544C

Performance Characteristics

Bandwidth 70 MHz / 100 MHz / 200 MHz

Rise Time <5 ns / <3.5 ns / <1.8 ns

Sample Rate 1 GSa/s (single channel),

500 MSa/s (dual channel)

Input Channels Analog: 2

Digital: 16 (-MSO models or with LA2540C upgrade)

Memory Depth 14 Mpts (single channel),

7 Mpts (dual channel)

Waveform Update Rate 60,000 wfms/s

Hardware Bandwidth Limits 20 MHz

Input Coupling DC, AC, GND

Input Impedance 1 MΩ ± 2% || (22 pF ±3 pF)

50 Ω ± 2%

Ch to Ch Isolation >40dB

Acquisition System

Peak Detect 1 ns

Average 4, 16, 32, 64, 128, 256, 512, 1024

Enhanced Resolution 0.5, 1, 1.5, 2., 2.5, 3 bits selectable

Interpolation Sin(x)/x, Linear

Vertical System

Vertical Resolution 8 bits

Vertical Sensitivity 500 μV/div to 10 V/div (1-2-5 )

Maximum Input Voltage 1 MΩ < 400 Vpk; 50 Ω <5 Vrms

DC Gain Accuracy ±3%: 5 mV/div to 10 V/div; ±4%: < 2 mV/div

Horizontal System

Time Base Range 2.0 ns/div to 50 s/div

Time Base Accuracy ±25 ppm

Ch to Ch Deskew Range ±100 ns

Trigger System

Modes Auto, Normal, Single

Coupling DC, AC, LF Reject, HF Reject, Noise Reject Ch1-Ch2

Trigger Level

Internal: ±4.5 div from center

External: EXT: ±0.6 V

EXT/5: ±3 V

Hold-Off Range 100 ns to 1.5 s

Types Edge, Slope, Pulse, Video, Window,

Interval, Dropout, Runt, Pattern

Serial Trigger I2C, SPI, UART/RS232, CAN, LIN

Cursors

Mode Manual, Track

Measurements ∆T, 1/∆T, X2, X1, ∆V, Y2, Y1

Waveform Math

Math Operation Add, Subtract, Multiply, Divide, FFT, Derivative,

Integral, Square Root

FFT Windows: Rectangle, Blackman,

Hanning, Hamming, Flattop

Waveform Measurements

Voltage

Vpp, Vmax, Vmin, Vamp, Vtop, Vbase, Mean, Cmean,

Stdev, Cstd, Vrms, Crms, FOV, FPRE, ROV, RPRE,

Level@Trigger

Time +SR, -SR, Period, Freq, +Width, -Width, Rise, Fall,

BWidth, +Duty, -Duty, Time@Mid

Delay Phase, FRR, FRF, FFR, FFF, LRR, LRF, LFF, Skew

Statistics Current, Mean, Min, Max, Stdev, Count

Gating Time domain

I/O Interface

Standard USB Host, USB Device, LAN, Pass/Fail, Trigger Out

Pass/Fail 3.3 V TTL Output

Display System

Display 8” Color TFT-LCD, 800 x 480 Resolution

Wave Display Mode Vectors, Dots

Persistence Off, Inﬁnite, 1 sec, 5 sec, 10 sec, 30 sec

Intensity Grading 256 Levels

Language

Simpliﬁed Chinese, Traditional Chinese,

English, French, Japanese, Korean, German,

Russian, Italian, Portuguese

Environmental and Safety

Temperature Operating: 10 °C to +40 °C

Storage: -20 °C to +60 °C

Humidity Operating: 85% RH, 40 °C, 24 hours

Storage: 85% RH, 65 °C, 24 hours

Altitude Operating: 3,000 m

Storage: 15,266 m

Electromagnetic Compatibility EMC Directive 2004/108/EC, EN61326:2006

Safety Low Voltage Directive 2006/95/EC, EN61010-1:2001

General

Power Requirements 100 to 240 VAC, CAT II, 50 VA Max, 45 Hz to 440 Hz

Dimensions (W x H x D) 4.8” x 7.2” x 13.4” (123 x 184 x 340 mm)

Weight 7.3 lbs (3.3 kg)

Three-Year Warranty

Included Accessories

Passive probes (one per channel), power cord,

certiﬁcate of calibration, USB (Type A to B)

communication cable

Optional Accessories 16-channel digital logic probe (LP2540C)

Note: All speciﬁcations apply to the unit after a temperature stabilization time of 30 minutes over an

ambient temperature range of 23 °C ± 5 °C.

Mixed Signal Oscilloscopes

2540C Series

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v111317

Function/Arbitrary Waveform Generator

Waveforms Sine, Square, Ramp, Pulse, DC, Noise ,

Cardiac, Gaus Pulse, Exp Rise

Arbitrary 4 Slots for Arbitrary Waveforms

Maximum Output Frequency 25 MHz

Sample Rate 125 MSa/s

Frequency Resolution 1 μHz

Frequency Accuracy ±50 ppm

Vertical Resolution 14 bits

Amplitude Range -1.5 to +1.5 V @ 50 Ω; -3 to +3 V @ 1 MΩ

Output Impedance 50 Ω ±2%

Protection Short-Circuit Protection

Sine Characteristics

Frequency 1 μHz to 25 MHz

Offset Accuracy (100 kHz) ±(0.3 dB * Offset Setting Value + 1 mVpp)

Amplitude ﬂatness ±0.3 dB

(100 kHz, 5 Vpp)

Spurious (non harmonics)

DC to 1 MHz: -60 dBc

1 MHz to 5 MHz: -55 dBc

5 MHz to 25 MHz: -50 dBc

Harmonic distortion DC to 5 MHz: -50 dBc

5 MHz to 25 MHz: -45 dBc

Square/Pulse Characteristics

Frequency 1 μHz to 10 MHz

Duty Cycle 20% to 80%

Rise/Fall Time < 24 ns (10% to 90%)

Overshoot (1 kHz, 1 Vpp Typical) < 3%

Pulse Width > 50 ns

Jitter < 500 ps + 10 ppm

Ramp Characteristics

Frequency 1 μHz to 300 kHz

Linearity (Typical) < 0.1% of Pk-Pk (Typical, 1 kHz, 1 Vpp, 100%

Symmetry)

Symmetry 0% to 100% (Adjustable)

DC Characteristics

Offset Range ±1.5 V (50 Ω)

±3 V (High-Z)

Accuracy ±(|offset|*1%+3 mV)

Noise Characteristics

Bandwidth > 25 MHz (-3 dB)

Arbitrary Wave Characteristics

Frequency 1 μHz to 5 MHz

Wave Length 16 Kpts

Sample Rate 125 MSa/s

Serial Decoder (DC2540C)

Threshold -4.5 to 4.5 div

Recorded List 1 to 7 Lines

I2C Decoder

Signal SCL, SDA

Address 7 bit, 10 bit

SPI Decoder

Signal CLK, MISO, MOSI, CS

Edge Select Rising Falling

Idle Level Low, High

Bit Order MSB, LSB

UART / RS232 Decoder

Signal RX, TX

Data Width 5, 6, 7, 8 bit

Parity Check None, Odd, Even

Stop Bit 1, 1.5, 2 bit

Idle Level Low, High

CAN Decoder

Signal CAN_H, CAN_L

Source CAN_H, CAN_L, CAN_H-CAN_L

LIN Decoder

Supported Speciﬁcation Ver1.3, Ver2.0

Speciﬁcations

MSO Digital Channels (LA2540C/LP2540C)

Digital Channels 16

Sample Rate 500 MSa/s

Memory Depth 14 Mpts/Ch

Maximum Input Voltage ± 20 Vpeak

Threshold Accuracy ± (3% of threshold setting + 150 mV)

Input Dynamic Range ± 10 V

Minimum Input Voltage Swing 800 mVpp

Input Impedance 100 kΩ || 8 pF

Maximum Input Frequency 60 MHz

Minimum Detectable Pulse

Width 8.3 ns

Ch to Ch Skew ± (1 digital sample interval)

User Deﬁned Threshold Range ± 3 V in 10 mV steps

Threshold Selections TTL, CMOS, LVCMOS3.3, LVCMOS2.5,

Custom (-3 to +3 V)