HW 1/17/05
Rev B
Page 2 of 2
6221 AC and DC Current Source
ARBITRARY FUNCTION GENERATOR
WAVEFORMS: Sine, Square, Ramp, and 4 User Defined Arbitrary
Waveforms.
FREQUENCY ACCURACY
4
: ±100 ppm (1 Year)
AMPLITUDE: 2pA to 210mA peak-peak into loads up to 10
12
Ω.
AMPLITUDE ACCURACY (<10kHz):
2
Magnitude: 1% rdg + 0.2% rng
Offset: 0.2% rdg + 0.2% rng
SINE WAVE CHARACTERISTICS:
Frequency Range: 1mHz to 100kHz.
2
Amplitude Flatness: Less than 1dB up to 100kHz.
4
SQUARE WAVE CHARACTERISTICS:
Frequency Range: 1mHz to 100kHz.
2
Overshoot: <2.5%
4
Variable Duty Cycle:
1,3
Settable to 1μs min. pulse duration,
0.01% programming resolution.
Jitter (RMS): 100ns + 0.1% of period.
4
RAMP WAVE CHARACTERISTICS:
Frequency Range: 1mHz to 100kHz.
2
Linearity: <0.1% of peak output up to 10kHz.
4
ARBITRARY WAVE CHARACTERISTICS:
Frequency Range: 1mHz to 100kHz.
2
Waveform Length: 2 to 64K points.
Amplitude Resolution: 16 bits (including sign).
5
Sample Rate: 10 MSPS.
5
Jitter (RMS): 100ns + 0.1% of period.
4
Maximum User Waveforms: 4.
PROGRAMMING TIME (Typical):
6
Waveform/Amplitude/Frequency Change: 1ms
ARB Transfer Times:
(External transfer time over Bus)
16K 64K
LAN 0.750s 3.000s
GPIB 1.250s 5.000s
(Internal transfer time of preloaded Arb locations 1-4)
Arb 1 0.001s 0.001s
Arb 2-4 0.500s 2.000s
6221 – 2182 MEASUREMENT FUNCTIONS
DUT RESISTANCE: Up to 1GΩ (1 nSiemen).
(100MΩ limit for pulse mode)
DELTA MODE RESISTANCE MEASUREMENTS and
DIFFERENTIAL CONDUCTANCE: Controls Keithley Model
2182A Nanovoltmeter at up to 24Hz reversal rate (2182 at up to
12Hz).
PULSE MEASUREMENTS:
Pulse widths 50μs to 12ms, 1pA to 100mA.
Repetition interval 83.3ms to 5s.
Waveform Notes:
1. Minimum realizable duty cycle is limited by current range response and load
impedance.
2. Amplitude accuracy is applicable for 100mA through 2μA ranges (Fast
Mode) into a maximum resistive load of 2V/I
fullscale of range
. Amplitude
attenuation will occur at higher frequencies dependent upon current range and
load impedance.
3. For frequencies less than 1 Hz, duty cycle not tested, guaranteed by design.
4. These Specifications are only valid for the 20mA range and a 50Ω load.
5. These characteristics for informational purposes only.
6. Typical values are non-warranted, apply at 23°C, represent the 50
th
percentile,
and are provided solely as useful information.
GENERAL SPECIFICATIONS
COMMON MODE VOLTAGE: 250Vrms, DC to 60Hz.
COMMON MODE ISOLATION: >10
9
Ω, <2nF.
SOURCE OUTPUT MODES: Fixed DC level, Memory
List, Arbitrary Waveform Function.
REMOTE INTERFACE
Ethernet: RJ-45 connector, TCP/IP (Auto sensed 10bT or
100bTx), IEEE-488, and RS-232C.
SCPI (Standard Commands for Programmable Instruments)
DDC (command language compatible with Keithley Model
220)
IP CONFIGURATION: Static or DHCP.
PASSWORD PROTECTION: 11 characters.
DIGITAL INTERFACE:
Handler Interface: Start of test, end of test, 3 category
bits, +5V@300mA supply.
Digital I/O: 1 trigger input, 4 TTL/Relay Drive outputs
(33V@500mA, diode clamped).
OUTPUT CONNECTIONS:
• Teflon insulated 3-lug triax connector for output.
• Banana Safety Jack for GUARD, OUTPUT LO
• Screw Terminal for CHASSIS
• DB-9 connector for EXTERNAL TRIGGER
INPUT, OUTPUT, and DIGITAL I/O
• Two position Screw Terminal for INTERLOCK
INTERLOCK: Maximum 10Ω external circuit impedance.
POWER SUPPLY: 100V to 240V rms, 50-60Hz.
POWER CONSUMPTION: 120VA.
WARRANTY: 1 Year.
ENVIRONMENT:
For Indoor Use Only: Maximum 2000m above Sea Level.
Operating: 0°-50°C, 70%R.H. up to 35°C. Derate 3%
R.H./°C, 35°-50°C.
Storage: -25°C to 65°C, guaranteed by design.
EMC: Conforms to European Union Directive 89/336/EEC,
EN 61326-1.
SAFETY: Conforms to European Union Directive
73/23/EEC, EN61010-1.
VIBRATION: MIL-PRF-28800F Class 3, Random.
WARMUP: 1 hour to rated accuracies.
Passive Cooling: No fan.
DIMENSIONS:
Rack Mounting: 89mm high x 213mm wide x 370mm
deep (3.5 in. x 8.375 in. x 14.563 in.).
Bench Configuration (with handle and feet): 104mm
high x 238mm wide x 370mm deep (4.125 in. x 9.375 in. x
14.563 in.).
SHIPPING WEIGHT: 4.75kg (10 lbs).
ACCESSORIES SUPPLIED: Model 237-ALG-2 Triaxial
Test Lead (6.6ft), Trigger Link cable, RS-232 (Null
Modem) cable, Interlock terminal block, User’s Manual,
CD Manual, LabVIEW Drivers.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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