BTH-1208LS - Wireless Multifunction Devices

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6069-410-121

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Part number:6069-410-121

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Description
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Specifications

Wireless DAQ Bluetooth or wired USB with 8 single-ended (SE)/4 DIFF analog inputs, 11-bit (SE)/12-bit (DIFF) resolution, 1 kS/s (Bluetooth) or 47 kS/s (USB) sample rate, 2 analog outputs (12-bit), one 32-bit counter, and 8 digital I/O. Windows and Android

NOTE: Due to regulatory requirements, the BTH-1208LS and BTH-1208LS-OEM can only be sold to be used in the United States, Canada, China, EU, Australia, Japan, and New Zealand. To be able to sell this DAQ we will require a written confirmation that this will not be imported to be used outside of any of these countries.

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The BTH-1208LS offers Bluetooth communication in a multifunction DAQ device. When paired with a compatible Windows-based or Android-based host device, the BTH-1208LS offers short-range wireless communication of acquired data. The BTH-1208LS offers analog I/O, digital I/O, and event counter input over either a wireless Bluetooth or physical USB connection.

Bluetooth or USB Operation

The BTH-1208LS can operate wirelessly as a Bluetooth device or as a physically-connected USB device.

When operating as a Bluetooth device, the BTH-1208LS must be paired with the host device before it can wirelessly communicate acquired data. Pairing is a one-time procedure that establishes a bond with the host device.

The BTH-1208LS can transmit data up to 10 meters when operating as a Bluetooth device.

Analog Input

The BTH-1208LS provides up to eight 11-bit SE analog inputs or four 12-bitDIFF analog inputs.

The device offers a fixed ±10 V range for SE measurements, and ±20 V, ±10 V, ±5V, ±4 V, ±2.5 V, ±2.0 V, ±1.25 V, and ±1.0 V ranges for DIFF measurements.

When performing a hardware-paced scan as a Bluetooth device, the BTH-1208LS supports a maximum aggregate sample rate of 1024S/s. The total rate for all channels cannot exceed 1024 S/s.

The following table lists the per-channel sample rates (hardware paced) for one to eight channels in Bluetooth mode.

When operating in BURSTIO mode as a Bluetooth device, the BTH-1208LS can acquire data at a maximum aggregate rate of 47kS/s. BURSTIO scans are limited to the depth of the onboard memory, as the data is acquired at a rate faster than it can be transferred to the computer.

When operating as a USB device, the device supports a maximum aggregate scan rate of 47 kS/s. The total acquisition rate for all channels cannot exceed 47 kS/s.

The following table lists the per-channel sample rates (hardware paced) for one to eight channels in USB mode.

Channel-Gain Queue

The channel-gain queue feature lets you configure a list of chan-nels and gains for each scan. Each channel can have a different gain setting. The gain settings are stored in a channel-gain queue list that is written to local memory on the device. The channel-gain queue list can contain up to 8 elements in SE mode or four elements in DIFF mode. The elements must be unique and listed in ascending order.

Trigger Input

The BTH-1208LS external digital trigger input can be configured for either rising/falling edge, or high/low level.

External Clock Input

An external clock signal connection is provided to pace input scanning operations.

Analog Output

The BTH-1208LS includes two 12-bit analog outputs, each with an output range of 0 V to 2.5 V. The D/A is software paced, and throughput is system-dependent.

Digital I/O

The BTH-1208LS supports up to eight digital I/O lines. When configured for input, the digital terminals can detect the state of any TTL-level input.

Digital input voltage ranges of up to 0 V to 5.5V are permitted, with thresholds of 0.8V (low) and 2.0 V (high).

Each DIO channel is an open-drain output which can sink up to 50 mA for direct drive applications when used as an output.

Inputs are pulled high by default to 3.3 V through 47.5 kOresistors on the circuit board. The pull-up voltage is common to all 47.5kO resistors.

Counter Input

The BTH-1208LS has a 32-bit event counter that can accept frequency inputs up to 1MHz. The internal counter increments when the TTL levels transition from low to high.

Power Options

When connected to a USB power supply, BTH-1208LS receives 5 V power. When the device is connected to a host USB port, USB provides both power and communication.If rechargeable NiMH or NiCd batteries are installed, the bat-teries recharge when the device is connected to a USB host or USB power supply.

Calibration

The BTH-1208LS is factory-calibrated using a NIST-traceable calibration process. Specifications are guaranteed for one year. For calibration beyond one year, return the device to the factory for recalibration.

Features:

Eight single-ended (SE) orfour differential (DIFF) analoginputs
Maximum Bluetooth® samplerates of 47 kS/s (BURSTIO) or1kS/s (hardware paced) overBluetooth
Maximum USB sample rates of47kS/s (hardware paced)
Two 12-bit analog outputs
Eight digital I/O and one 32-bitcounter input
Battery and USB power optionsSupported
OperatingSystems:

Windows 10/8/7/Vista®/XP32/64-bit
Android

Hoja de especificaciónes

Technical specifications
Analog Output
Resolution:	12-bits, 1 in 4,096
Output range	0 V to 2.5 V
Number of channels	2
Throughput (software paced)	10 S/s single channel type
USB operation	Initializes to 000h code
Bluetooth operation	The outputs can be individually configured to initialize to 000h or to have user-configurable values written to the outputs when the Bluetooth host device is connected or disconnected.
Output current drive (each D/A OUT)	5 mA source capability
Slew rate	0.75 V/ µs typ
Analog Output Accuracy
All values are (±) accuracy tested at no load Range	0 V to 2.5 V
Accuracy (LSB)	8.0 typ, 73.0 max
Analog Output Accuracy Components (All Values are (±))
Range	0 V to 2.5 V
% of Reading	0.16 typ, 1.44 max
Gain error at full scale	4.0 mV typ, 36.0 mV max
Offset	1.0 mV typ, 9.0 mV max Zero-scale offsets may result in a fixed zero-scale error producing a dead-band digital input code region. In this case, changes in digital input code at values less than 0x040 may not produce a corresponding change in the output volt-age. The offset error is tested and specified at code 0x040.
Accuracy at full scale	5.0 mV typ, 45.0 mV max
Digital Input/Output
Digital type	3.3 V open drain
Output value mapping	0 written Output drives to DGND 1 written Output is pulled up to 3.3 V by internal resistor
Number of I/O	8
Configuration	Individually configurable
Input voltage range	0 V to 5.5 V Each transistor source pin is internally connected to DGND Pull up/pull-down configuration:47.5 kO pull-up resistors (to 3.3 V), 2.2 kOseries resistors
Input high voltage threshold	2.0 V min
Input high voltage limit	5.5 V absolute max
Input low voltage threshold	0.8 V max
Input Low voltage limit	–0.5 V absolute min, 0 V recommended min
Output Voltage range	0 V to 3.3 V (no external pull up resistor), 0 V to 5.5 V max The external pull-up is connected to the digital output bit through an external pull-up resistor. Adding an external pull-up resistor connects it in parallel with the internal 47.5 kO pull-up resistor of that particular digital input/output bit. Careful consideration should be made when considering the external pull-up resistor value and the resultant pull-up voltage produced at the load.
Output off state leakage current	1.0 µA typ Does not include the additional leakage current contribution through the internal or any external pull-up resistor.
Sink Current capability	50 mA max (continuous) per pin
Transistor on resistance	0.7 O max
Power on and reset state	USB operation: All input Bluetooth operation: The digital I/O can either be all input at power on/reset or may be configured to have user-configurable patterns written to the DIO when the Bluetooth host is connected or disconnected. Each transistor source pin is internally connected to DGND.
External Trigger
Trigger source	External digital; TRIG terminal
Trigger mode	Software configurable for edge or level sensitive, rising or falling edge, high or low level.
Trigger latency	10 µs max
Trigger pulse width	1 µs min
Input type	Schmitt trigger, 47 kO pull-down to ground
Schmitt trigger hysteresis	0.76 V typ, 0.4 V min, 1.2 V maxInput high voltage threshold:1.74 V typ, 1.3 V min, 2.2 V max
Input high voltage limit	5.5 V absolute max
Input low voltage threshold	0.98 V typ, 0.6 V min, 1.5 V max
Input low voltage limit	–0.5 V absolute min, 0 V recommended min
External Clock Input
Terminal name	AICKI
Terminal type	Input
Input clock rate	50 kHz, max
Clock pulse width	1 µs min
Input type	Schmitt trigger, 47 kO pull-down to ground
Schmitt trigger hysteresis	0.76 V typ, 0.4 V min, 1.2 V max
Input high voltage threshold	1.74 V typ, 1.3 V min, 2.2 V max
Input high voltage limit	5.5 V absolute max
Input low voltage threshold	0.98 V typ, 0.6 V min, 1.5 V max
Input low voltage limit	–0.5 V absolute min, 0 V recommended min
Counter
Pin name	CTR
Counter type	Event counter
Number of channels	1
Input type	Schmitt trigger, 47 kO pull-down to ground, rising edge triggered
Input source	CTR screw terminal
Resolution	32 bits
Maximum input frequency	1 MHz
High pulse width	500 ns min
Low pulse width	500 ns min
Schmitt trigger hysteresis	0.76 V typ, 0.4 V min, 1.2 V max
Input high voltage threshold	1.74 V typ, 1.3 V min, 2.2 V max
Input high voltage limit	5.5 V absolute max
Input low voltage threshold	0.98 V typ, 0.6 V min, 1.5 V max
Input low voltage limit	–0.5 V absolute min, 0 V recommended min
Memory
FIFO	12K (12,288) samples
Non-volatile EEPROM	2,048 bytes (768 bytes calibration, 256 bytes user, 1,024 bytes firmware use)
Microcontroller
Type	High performance 16-bit RISC microcontroller
Power
Supply current, USB Source During enumeration	< 100 mA
After USB enumeration or connected to USB charger/supply	< 500 mA
Battery power	Two AA cells; alkaline, NiCd, and NiMH cells supported
Battery charging	NiMH and NiCd charging supported. Alkaline cells automati-cally detected and not charged.When operating from batteries, there is a user configurable power-off timer that will turn the device off when there is no host connection for the speci-fied amount of time. The timer can be disabled or set to a value from 1 – 255 minutes.
+VO power available (after USB enumeration or Bluetooth connection)	3.3 V nominal
+VO output current (after USB enumeration or Bluetooth connection)	50 mA max
Bluetooth
Device type	Bluetooth 2.1
Device compatibility	Backwards compatible with Bluetooth 2.0, 1.2, and 1.1
Bluetooth profile	Serial Port Profile (SPP)
Radio range	Class II, 10 m typ
USB
Device type	USB 2.0 full speed
Device compatibility	USB 1.1, USB 2.0
Environmental
Operating temperature range	0 °C to 50 °C (32 °F to 122 °F)
Storage temperature range	–40 °C to 70 °C (–40 °F to 158 °F)
Humidity	0% to 90% non-condensing
Mechanical
Dimensions (L × W × H)BTH-1208LS	146.56 × 81.31 × 27.18 mm (5.77 × 3.28 × 1.07 in.)
BTH-1208LS-OEM (PCB dimensions)	99.06 × 68.58 × 14.61 mm(3.90 × 2.70 × 0.58 in.)
USB cable length	3 m (9.84 ft) max
User connection length	3 m (9.84 ft) max
Signal Connector
Connector type	BTH-1208LS: Screw terminal BTH-1208LS-OEM: Three 2 × 8 pin, 0.1 in. pitch headers
Wire gauge range	16 AWG to 30 AWG

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