Measurement Computing

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USB-3100 Series

Clock Pulse Width

Input: 1 µs min

Output: 5 µs min

Input Leakage Current: ±1.0 µA typ

Input High Voltage: 4.0 V min, 5.5 V absolute max

Input Low Voltage: 1.0 V max, –0.5 V absolute min

Output High Voltage

IOH = –2.5 mA: 3.3 V min

No Load: 3.8 V min

Output Low Voltage

IOL = 2.5 mA: 1.1 V max

No Load: 0.6 V max

When set for input, the analog outputs can be updated immediately or when

a positive edge is detected with software. SYNCLD must be at a low logic level

for DAC outputs to be updated immediately. If an external source is pulling

the pin high, no update occurs.

Counter

Pin Name: CTR

Number of Channels: 1

Resolution: 32-bits

Counter Type: Event counter

Input Type: TTL, rising edge triggered

Counter Read/Write Rates (Software-Paced)

Counter Read/Write: System dependent, 33 to 1000 reads per second

Schmidt Trigger Hysteresis: 20 mV to 100 mV

Input Leakage Current: ±1.0 µA typ

Input Frequency: 1 MHz max

High Pulse Width: 500 nS min

Low Pulse Width: 500 ns min

Input High Voltage: 4.0 V min, 5.5 V absolute max

Input Low Voltage: 1.0 V max, –0.5 V absolute min

Environmental

Operating temperature

USB-3101/3103/3105: 0 ˚C to 70 ˚C

All other devices: 0 ˚C to 50 ˚C

Storage temperature: –40 ˚C to 85 ˚C

Relative humidity (RH): 0% to 90% RH, noncondensing

Power

Supply current (USB enumeration): <100 mA

Supply current (quiescent): Total quiescent current requirement includes up to 10

mA for the status LED. This does not include any potential loading of the digital

I/O bits, +5 V user terminal, or the VOUTx outputs.

USB-3101/3102: 140 mA typ

USB-3103/3104/3110: 160 mA typ

USB-3105/3106: 200 mA typ

USB-3112: 225 mA max

USB-3114: 355 mA max

+5Vuseroutputvoltagerange:4.5 V to 5.25 V (USB power is within specified limits)

+5 V user output current: 10 mA max (total current sourced from the +5V for

general use; includes any additional contribution due to DIO loading.

USB-3102/3104/3106

ITEST output voltage range: 13 V, ±1% typ

ITEST output current: 30 mA max

Refers to the total maximum amount of current that can be sourced from the

ITEST user terminal, which should only be used for biasing individual IOUTx

outputs to facilitate functional testing. Place a load resistor of 100 Ω between

the ITEST pin and the IOUTx pin for proper operation)

External power (USB-3110/3112/3114 only)

Output voltage: 5 V, ±5%

Output wattage: 10 W

Power jack configuration: Two conductor

Power jack barrel diameter: 6.3 mm

Power Jack pin diameter: 2.0 mm

Power jack polarity: Center positive

Mechanical

Dimensions (L × W × H): 127.0 × 88.9 × 35.6 mm (5.0 × 3.5 × 1.4 in.)

Specifications

Specifications – USB-3101FS

Analog Voltage Output

Number of Channels: 4

D/A Converter Resolution: 16 bit

D/A Converter Type: String

Output Range: ±10 V

Power On Voltage: 0 V

Operating Voltage: ±10.7 V nominal, ±10.3 V min, ±11 V max

Current Drive: ±1 mA per channel max

Output Impedance: 0.1 Ω

Stability:

Offset Drift: ±80 µV/ºC

Gain Drift: 6 ppm/ ºC

Protection

Overvoltage: ±30 V

Short-Circuit: Indefinitely

Update Time

One Channel: 3 µs

Two Channels: 5 µs

Three Channels: 7.5 µs

Four Channels: 9.5 µs

Update Rate: 100 kS/s per channel max

Noise: 260 µVrms

Slew Rate: 4 V/µs

Crosstalk: 76 dB

Settling Time:

100 pF Load to 1 LSB

FS Step: 20 µs

3 V Step: 10 µs

0.1 V Step: 8 µs

Glitch Energy

256 Steps, Worst Case: 2 mV for 2 µs

Capacitive Drive: 1,500 pF min

Monotonicity: 16 bits

Differential Nonlinearity: –1 to 2 LSBs max

Integral Nonlinearity (Endpoint): 16 LSBs max

Accuracy

Measurement

Conditions

% of

Reading

% of Range

(Range is Equal to ±10.7 V)

Calibrated, max

(–40 to 70 ºC)

0.35%

0.75%

Calibrated, typ

(25 ºC, ±5 ºC)

0.01%

0.1%

Uncalibrated, max

(–40 to 70 ºC)

2.2%

1.7%

Uncalibrated, typ

(25 ºC, ±5 ºC)

0.3%

0.25%

Environmental

Operating temperature: –40 ˚C to 70 ˚C

Storage temperature: –40 ˚C to 85 ˚C

Operating humidity: 10% to 90% RH non-condensing

Storage humidity: 5% to 95% RH non-condensing

Power

Power consumption: 625 mW max

Thermal dissipation at 70 ˚C: 625 mW max

Mechanical

Dimensions (L × W × H): 114.3 × 139.7 × 38.1 mm (4.5 × 5.5 × 1.5 in.)

Weight: 544 g (1.2 lb)