TECHNICAL SPECIFICATIONS |
Analog Input |
A/D converter type | 16-bit successive approximation type |
Number of channels | Eight differential or eight single-ended |
Input configuration | Individual A/D per channel |
Sampling method | Simultaneous |
Analog input modes | Power up and reset state: CHx_H and CHx_L inputs are disconnected from their screw terminal pins and internally connected to GND; recommended configuration for unused inputs. Single-ended: CHx_H inputs are connected directly to their screw terminal pins. CHx_L inputs are disconnected from their screw terminal pins and internally connected to GND. Differential: CHx_H and CHx_L inputs are connected directly to their screw terminal pins. |
Absolute maximum input voltage | CHx IN to GND: ±25 V max (power on) TRIG_IN to GND: ±15 V max (power off) |
Input impedance | (CHx IN): 1 GO (power on), 1.5 kO (power off) |
Input bandwidth | (–3 dB) (all input ranges): 330 kHz |
Input leakage current | ±25 pA |
Input capacitance | 50 pf |
Input ranges (software-selectable per channel) | ±10 V, ±5 V, ±2 V, ±1 V |
A/D pacing | Onboard A/D clock, external source (SYNC_IN). |
A/D trigger source | TRIG_IN input. |
A/D trigger mode | External analog. |
Maximum working voltage (signal + common mode) | FSR ±0.05% FSR max |
Sampling rate | 0.009 S/s to 250 kS/s, software-selectable |
Throughput | Software paced: 33 to 8000 S/s all channels, system dependent Scan to PC memory: 250 kS/s per channel max (limited on USB 1.1 ports) Resolution: 16 bits |
Differential non-linearity | Calibrated: ±2.0 Uncalibrated: ± 0.5 LSB typ, ±1.0 LSB max (applies to the entire 0 °C to 55 °C temperature range) |
CMRR (60 Hz) | ±10 V: 81 dB min ±5 V: 81 dB min ±2 V: 92 dB min ±1 V: 92 dB min |
Analog Output (USB-1608HS-2AO only) |
Number of channels | Two independent |
Resolution | 16 bits |
Output range | ±10 V |
Throughput | Single channel: 70 kS/s Two channel: 35 kS/s |
Pacer source | Onboard D/A clock |
Monotonicity | 16 bits |
Glitch energy | 200 nV/s |
Current output | ±10 mA max single channel, ±20 mA max two channels. |
Output short-circuit protection(Output connect to GND) | 100 ms max |
Output coupling | DC |
Power up and reset state | DACs clear to midscale, (0 V, ±20 mV). Remote sense is disabled. |
Remote sense configuration | Enabled or disabled through software control. |
Remote sense compliance voltage | ±10.75 V max |
Remote sense compensation range | 0 to 75 ? max |
Output noise | 100 nV/Hz |
Settling time (to 0.003%) | 20 V output step, (RL = 5 kO, CL = 200 pf): 5 µS max |
Slew rate | 10 V/µs |
Absolute accuracy | ±0.25% of FSR max |
Offset error drift | ±4 ppm/°C |
Gain error drift | ±10 ppm/°C |
Analog Input Calibration |
Recommended warm-up time | 15 minutes min |
Calibration method | Software calibration |
Calibration interval | 1 year |
Calibration reference | +10.000 V, ±5 mV max. Actual measured values stored in EEPROM |
Tempco | 5 ppm/°C max |
Long term stability | 30 ppm/1000 h |
Digital Input/Output |
Digital type | 5 V CMOS |
Number of I/O | 16 |
Configuration | Eight input, eight output |
Pull-up/down configuration | The eight input pins have 47 kO resistors that may be configured to either pull-up or pull-down with a jumper. |
Digital I/O transfer rate | System dependent, 33 to 8000 port reads/writes or single bit reads/writes per second. |
Input high voltage | 2.0 V min, 5.5 V absolute max |
Input low voltage | 0.8 V max, –0.5 V absolute min |
Output high voltage | (IOH = –2.5 mA): 3.8 V min |
Output low voltage | (IOL = 2.5 mA): 0.7 V max |
Power on and reset state | Outputs: driven low |
LED indicators | Each I/O pin has an associated LED status indicator. |
External Trigger |
Trigger source | TRIG_IN input |
Trigger input range | ±10 V max |
Absolute maximum input voltage | TRIG_IN to GND: ±25 V max (power on), ±15 V max (power off) |
Trigger threshold levels | ±10 V/4096; software-selectable. |
Input impedance | 1 MO (power on), 1.5 kO (power off) |
Trigger modes | Positive/negative slope, edge/level sensitive, retrigger on/off |
Threshold resolution | 12 bits, 1 in 4096 |
Threshold accuracy | ±0.25% FSR |
Hysteresis | ±5 mV |
Full power bandwidth (–3 dB) | 640 kHz |
External Clock Input/Output |
Pin names | SYNC_IN, SYNC_OUT |
Pin type | SYNC_IN: Input; receives the A/D pacer clock signal from an external source; rising edge sensitive. SYNC_OUT: Output; outputs the A/D pacer clock signal. Over-current protected with a 200 ? series resistor. |
Input clock rate | 250 kHz max |
Clock pulse width | SYNC_IN: 1 µs min SYNC_OUT: 2 µs min |
Input leakage current | ±2.0 µA |
Input high voltage | 3.5 V min, 6.5 V absolute max |
Input low voltage | 1.5 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 |
Counter |
Pin name | CTR |
Counter type | Event counter; Schmitt trigger input protected with a 1 k? series resistor. |
Number of channels | 1 |
Input type | TTL, rising edge triggered |
Input source | CTR screw terminal |
Resolution | 32 bits |
Schmidt trigger hysteresis | 0.58 V to 0.93 V |
Input leakage current | ±5 µA |
Maximum input frequency | 1 MHz |
High pulse width | 500 ns min |
Low pulse width | 500 ns min |
Input high voltage | 2.4 V min, 6.5 V absolute max |
Input low voltage | 2.19 V max, –0.5 V absolute min |
Power |
Supply current | Continuous mode: 920 mA. This is the total current requirement, and does not include any additional contribution due to the power output pin current, analog output source current, or DIO loading. +5V EXT pin output voltage range: 4.5 V min, 5.25 V max. Output voltage range assumes that the input power supply is within specified limits. +5V EXT pin output current: +10 mA max. This is the total amount of current that can be sourced for general use from the power output pin. |
External power input | +5.0 VDC |
External power adapte | +5 V, ±5% @ 2 A (MCC p/n PS-5V2AEPS included) |
Environmental |
Operating temperature range | 0 °C to 55 °C max |
Storage temperature range | –40 °C to 85 °C max |
Humidity | 0% to 90% non-condensing |
Mechanical |
Dimensions (L × W × H) | Board: 203.2 × 121.9 × 15.2 mm (8.0 × 4.8 × 0.6 in.) Enclosure: 241.3 × 125.7 × 58.9 mm (9.50 × 4.95 × 2.32 in.) |