BITSCOPE MODEL 120 SPECIFICATIONS

BITSCOPE

product

BS120

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Input Channels	Specification
Analog Inputs [1]	4 (2 x BNC + 2 x POD)
Analog Channels [2]	2 (dual A/D converters)
Analog Bandwidth [3]	100 MHz (BNC), 20 MHz (POD)
Logic Channels (POD) [2]	8 (3.3/5V CMOS/TTL)
Input Impedance	1M±1%, 20pF (BNC), 100K/10pF (POD)
Input Coupling	AC, DC, GND (BNC), DC (POD)
Input Range (BNC)	±48.8mV ~ ±11.8V in 8 ranges
Input Range (POD)	±462mV ~ ±5.43V in 4 ranges
Input Prescale [4]	x20 (BNC only)
Probe Attenuation	1:1 to 3000:1 in 16 ranges
Protocol Capture	UART, SPI, I2C & CAN Bus
Vertical Scaling	500 uV/div to 5 V/div (1:1 probe)
Vertical Accuracy	±2% or ±3% (prescale enabled)
Analog Sensitivity	1mV to 40mV (no prescale enabled)
Maximum Sensitivity [5]	300 uV (Time), 80uV (Freq), 20uV (Dithered Mean)

Data Acquisition	Specification
Streaming Sample Rates [6]	1Sa/S to 50kSa/S (continuous)
Real-Time Sample Rates [7]	15kSa/S to 40MSa/S (per buffer)
Sub-Sampling Rates [8]	1MSa/S to 1GSa/S (per buffer)
Timebase Range (real-time)	100nS/div ~ 500mS/div
Timebase Range (streaming)	10mS/div ~ 500S/div
Timebase Range (sub-sampling)	1nS/div ~ 1mS/div
Timebase Accuracy	0.01% (100ppm)
Hardware Sample Rates	15kSa/S to 40MSa/S (2000+ rates)
Capture Buffers	64kS x 2 (analog) or 64kS x 9 (analog+logic)
Capture Resolution	8 bit converter with 6.8 to 7.6 ENOB
Maximum Resolution [9]	11 ENOB (at 1MHz and lower)
Display Frame Rate (max)	40 Hz (single channel, 25 mS per analog channel)

Triggers & Timing	Specification
Trigger Types	Edge (Rise/Fall), Level/State, Logic & Ext.
Trigger Level Range	Same as selected Input Range
Hysteresis/Sensitivity	±2% full scale (per range)
Pre-Trigger Hold-Off	10uS ~ 1S
Duration Trigger Filter	10uS ~ 150uS
External Trigger Bus	YES (logic inputs may also be used)
Post-Trigger Delay	8 uS to 2 hours (programmable)
Logic Pattern Trigger	8 bit on logic or digitized analog
High Speed Trigger	YES (on any analog input)
Glitch Capture (min)	25nS (logic channel or trigger)

Waveform Generation	Specification
Generator Types [11]	VSR, DDS, CLK & PRNG
Frequency (max) [12]	1MHz (DDS, PRNG), 1.5MHz (VSR) or 5MHz (CLK)
Frequency (min) [12]	1mHz (DDS), 1Hz (VSR, PRNG) or 1kHz (CLK)
Frequency Resolution	6 digits or 1mHz (DDS)
Accuracy [13]	±50ppm, 20° to 30° (typical)
Temperature Coefficient [14]	≈1ppm/°C
Built-in Wave-Functions	Sine, Ramp, Step, Exponential, Noise
Loadable Wavetable Size	2 to 1024 samples

Generator Sync [15]	Specification
Operating Modes	Burst, Gated, Sweep, Clock In/Out
Burst Duration [16]	1uS to >1Hr
Post-Trigger Delay [16]	500nS to >1Hr
Inter-burst Delay [16]	500nS to >1Hr
Burst Repeat Count	2^32 (max)

WavePort	Specification
Output Level	10Vpp to 40mVpp
Output Offset	±2.5Vpp
Output Impedance	50Ω
Output Voltage Tolerance	±12V (max)
Waveform Resolution (D/A)	8 bits (multiplying)

TimePort	Specification
Output Type	3-state, 100k to GND
Logic Levels	5V CMOS In/Out
Output Drive	Active (low ≈0.6V, high ≈4.4V)
Output Impedance	100Ω (50mA max)
Trigger Latency	200nS (typical)
External Clock (max)	2MHz
Minimum Pulse Width	100nS

Interfaces	Specification
Analog Interface	2 x BNC and 2 x POD
Logic Interface	8 channels I/O (POD)
Control Interface (POD)	V+, V-, GND, WavePort, Serial I/O
Front Panel Pins	Calibration/TimePort, Trigger Bus, GND
PC Host Interface	Opto-Isolated USB 2.0 (USB 1.1 compatible)
Data Upload Speed (max)	1,200 kb/S (Raw Data), 450 kb/S (Enhanced)

Host/General	Specification
Included PC Software [10]	BitScope DSO Virtual Instrument Software
Optional PC Software [10]	Logic, Meter, Chart & Library
Power Requirement	9~12 VDC @ 500mA (max), 2.5mm CP
Operating Temperature	0ºC to 40ºC or 20ºC to 30ºC (for quoted accuracy)
Storage Requirements	-40°C to +60°C / 5% to 85% RH
Dimensions (WxDxH)(net)	150 x 35 x 105 mm
Weight (net)	310g

E&OE

[1]	Analog capture for each channel is selectable between the BNC or POD inputs individually.
[2]	Dedicated A/D converter for each analog channel to support sample synchronous capture at all supported hardware rates on both analog channels or one analog and all logic channels.
[3]	Maximum bandwidth of analog channels captured using equivalent time sampling or used with the multi-band spectrum analyzer via 10:1 probes with prescale disabled and waveform amplitude captured to 10% full-scale.
[4]	User selectable analog input prescaler for use with low level signals or when 20MHz input bandwidth limiting is required.
[5]	Minimum measurable peak-to-peak sinusoidal waveform voltage when both resolution enhancement and input multiplier are enabled, when viewed as a waveform (Time) or viewed as a spectrum (Freq) and the minimum measurable average DC voltage (Mean).
[6]	Streaming capture sample rates for data logging and transient recorder applications.
[7]	Real-Time (Nyquist Limited) sample rates (captured per frame).
[8]	Equivalent-Time (not Nyquist limited) sample rates sample rates (captured per frame). Applies to periodic signals only.
[9]	Specifies the maximum effective number of bits (ENOB) achieveable with resolution enhancement enabled.
[10]	All specifications are quoted on the basis that the product is used with the apropriate BitScope software.
[11]	Supports 4 different generator types: VSR = Variable Sample Rate, DDS = Direct Digital Synthesis, CLK = Clock Generator, PRNG = Psuedo Random Number Generator.
[12]	Minimum and maximum frequency depends on generator type as indicated.
[13]	Uncalibrated frequency accuracy is specified (as defined by the BS120U reference crystal). May be calibrated to better than this if precision frequency reference is available.
[14]	Temperature Coefficient is that of the BS120U reference crystal.
[15]	Trigger, Burst and Clock modes may be configured to accept or generate a trigger or clock signal via the TimePort.
[16]	The maximum duration or delay depends on the sample rate. The maximum duration in all cases exceeds 1 hour but can extend far beyond this limit at lower sample rates.

Analog and logic probes are sold seperately.