# B&K Precision 2540C 70 MHz Digital Storage Oscilloscope # B&K Precision 2540C 70 MHz Digital Storage Oscilloscope ## Key Features At A Glance - Bandwidth options from 70 MHz to 200 MHz across the series (2540C, 2542C, 2544C variants) - 1 GSa/s sample rate (single channel) / 500 MSa/s (dual channel) with 14 Mpts maximum memory depth - Two analog input channels with selectable 1 MΩ and 50 Ω input coupling - 60,000 wfms/s maximum waveform capture rate with 256-level color gradient display - Built-in 25 MHz function/arbitrary waveform generator standard on all models - Available as DSO models (upgradeable) or MSO models with 16 integrated digital channels - Optional serial bus decode license (DC2540C) for I2C, SPI, UART/RS232, CAN, and LIN protocols - Standard LAN and USBTMC-compliant USB device port for remote PC control The B&K Precision 2540C Series is a family of two-channel mixed signal oscilloscopes available in three bandwidth tiers — 70 MHz (2540C), 100 MHz (2542C), and 200 MHz (2544C) — with each tier offered as either a base DSO configuration or as a factory MSO variant that adds 16 integrated digital channels. The series combines a 1 GSa/s sample rate, up to 14 Mpts of acquisition memory, and a 25 MHz function/arbitrary waveform generator that ships standard on every model, providing both stimulus and response capability in a single bench instrument. The 2540C Series is positioned for design, education, service, and repair applications. The instrument supports capturing signal anomalies, decoding serial bus protocols, and accelerating debug and analysis workflows. The integrated logic analyzer (available on MSO variants or via the LA2540C upgrade license) and the optional decode software extend the instrument from a traditional oscilloscope into a mixed-signal debug platform suitable for embedded development work involving I2C, SPI, UART/RS232, CAN, and LIN buses. ## Brand Heritage B&K Precision is a long-established US-distributed test and measurement brand with manufacturing roots going back to the 1950s. The company has operated continuously under the B&K Precision name and remains an active T&M instrument manufacturer with no major corporate rebrand affecting its current product lines. ## Compare Other Models in This Series The 2540C Series consists of three bandwidth tiers — 70 MHz (2540C), 100 MHz (2542C), and 200 MHz (2544C) — each available as either a base DSO model or as a factory MSO variant. The MSO variant designation (e.g., 2544C-MSO) indicates the instrument ships with the LP2540C 16-channel logic probe and the LA2540C MSO license preinstalled. All six models in the family share the same two analog input channels, the same 1 GSa/s sample rate, the same 14 Mpts memory depth, the same 25 MHz built-in function/arbitrary waveform generator, the same 8-inch display, and the same trigger architecture. The bandwidth tier and the MSO factory option are the two axes that differentiate the family. Each new model below has its own dedicated product page with condition-matched pricing and availability. Compare the bandwidth tier and the MSO option to match your application requirements, then select the specific product page for the configuration you need. The bandwidth tier sets the rise time and the highest signal frequency the instrument can resolve: under 5 ns rise time on the 70 MHz models, under 3.5 ns on the 100 MHz models, and under 1.8 ns on the 200 MHz models. All other analog performance characteristics — vertical sensitivity range, vertical resolution, input coupling, input impedance options, time base range and accuracy — are identical across the three tiers per the datasheet. The MSO designation in the model number (the -MSO suffix) indicates the unit ships with the LP2540C 16-channel logic probe and the LA2540C MSO license preinstalled. Base DSO models can be field-upgraded to MSO functionality by purchasing the LP2540C probe and the LA2540C license separately. The DC2540C serial decode license is optional on both DSO and MSO models. Model Bandwidth Analog Channels Digital Channels **2540C** 70 MHz 2 Upgradeable 2540C-MSO 70 MHz 2 16 2542C 100 MHz 2 Upgradeable 2542C-MSO 100 MHz 2 16 Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Passive probes (one per channel) - Power cord - Certificate of calibration - USB (Type A to B) communication cable ## Product Core & Specifications Specification 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 \>40 dB 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 ΔT, 1/ΔT, X2, X1, ΔV, 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) Warranty Three-Year Warranty 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 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%) Sample Rate 125 MSa/s **Important:** Sample rate is 1 GSa/s on a single channel and 500 MSa/s when both channels are active. Memory depth is 14 Mpts in single-channel mode and 7 Mpts in dual-channel mode.**Important:** All specifications apply to the unit after a temperature stabilization time of 30 minutes over an ambient temperature range of 23 °C ± 5 °C.**Important:** The 16-channel digital logic probe (LP2540C) is included with MSO models and is an optional accessory for DSO models; it is required to use the 16 digital channels.**Important:** The MSO and decoding functionalities are available for upgrade in the field with the purchase of a license key. DSO models can be upgraded to MSO via the LA2540C license. Decode functionality requires the DC2540C license. A 30-use trial is available on each unit.Recommended pairing: the LP2540C 16-channel logic probe, which connects to the digital input header and enables the mixed-signal channels when the LA2540C license is installed. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 1015.0 USD - **Vendor:** B&K Precision - **Type:** Ms Oscilloscope - **Tags:** BK Precision, Digital, Manufacturers, Oscilloscopes, product_manual_group_1, Product_new ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1015.00 USD | In stock | ## Images - B&K Precision 2540C 70 MHz Digital Storage Oscilloscope --- > Source: [ValueTronics](https://valuetronics.com/products/2540c-b-k-precision-digital-oscilloscope-new) > Updated: 2026-05-30