Atec 228A ANT-5 User Manual

228A Programmable Voltage/Current Source

AS A CONSTANT VOLTAGE SOURCE

OUTPUT COMPLIANCE (Source or Sink)

RANGE MAXIMUM RESOLUTION 18°–28°C MAXIMUM RESOLUTION 18°–28°C

100 V ±101.0 V 100 mV ±(0.1% + 0.1 V) ±1.010 A 1 mA ±(0.1% + 4 mA)

10 V ±10.10 V 10 mV ±(0.1% + 10 mV) ±10.10 A 10 mA ±(0.5% + 40 mA)

1 V ±1.010 V 1 mV ±(0.1% + 1.0 mV ) ±10.10 A 10 mA ±(0.5% + 40 mA)

*Above 0.4% of range.

TEMPERATURE COEFFICIENT (0°–18°C & 28°–50°C):

±(0.1 × applicable accuracy specification)/°C.

NOISE:

RANGE 0.1–300 Hz 0.1–300 kHz 0.1–20 MHz*

100 V 2.5 mV p-p 15 mV p-p 25 mV p-p

10 V 1.0 mV p-p 15 mV p-p 25 mV p-p

1 V 0.35 mV p-p 15 mV p-p 25 mV p-p

*Typical.

ACCURACY* (1 Year) ACCURACY (1 Year)

±0.1010 A 100 µA ±(0.1% + 400 µA)

±1.010 A 1 mA ±(0.1% + 4 mA)
±0.1010 A 100 µA ±(0.1% + 400 µA)

±1.010 A 1 mA ±(0.1% + 4 mA)
±0.1010 A 100 µA ±(0.1% + 400 µA)

OUTPUT RESISTANCE (maximum): 100V Range: 10mΩ.

10V Range: 100µΩ. 1V Range: 100µΩ.

OUTPUT INDUCTANCE: 100µH typical.

SENSING: REMOTE or LOCAL.

REMOTE SENSING: Corrects for up to 0.5V drop per output

lead. Maximum 5Ω per sense lead for rated accuracy.
Maximum 0.5Ωper sense lead for rated output resistance.

AS A CONSTANT CURRENT SOURCE

OUTPUT COMPLIANCE (Source or Sink)

RANGE MAXIMUM RESOLUTION 18°–28°C MAXIMUM RESOLUTION 18°–28°C

10 A ±10.10 A 10 mA ±(0.5% +10 mA) ±10.10 V 10 mV ±(0.1% + 40 mV)

1 A ±1.010 A 1 mA ±(0.1% + 1.0 mA) ±101.0 V 100 mV ±(0.1% + 400 mV )

0.1 A ±0.1010 A 100 µA ±(0.1% + 0.1 mA) ±101.0 V 100 mV ±(0.1% + 400 mV)

*Above 0.4% of range.

NOISE:

RANGE 0.1–300 Hz 0.1–300 kHz 0.1–20 MHz*

10 A 5 mA p-p 15 mA p-p 25 mA p-p

1 A 1.5 mA p-p 5 mA p-p 25 mA p-p

0.1 A 0.5 mA p-p 5 mA p-p 3 mA p-p

*Typical.

ACCURACY* (1 Year) ACCURACY (1 Year)

±1.010 V 1 mV ±(0.1% + 4 mV )

±10.10 V 10 mV ±(0.1% + 40 mV)
±1.010 V 1 mV ±(0.1% + 4 mV )

±10.10 V 10 mV ±(0.1% + 40 mV)
±1.010 V 1 mV ±(0.1% + 4 mV )

TEMPERATURE COEFFICIENT (0°–18°C & 28°–50°C):

±(0.1 × applicable accuracy specification)/°C.

OUTPUT RESISTANCE (min.): 10A Range: 10

1A Range: 10

OUTPUT CAPACITANCE: 0.2µF typical.

OUTPUT LOAD: Must be non-inductive.

5

Ω. 0.1A Range: 106Ω.

4

Ω.

CURRENT MONITOR OUTPUT

SCALE FACTOR: 1V = 100% of range.

ACCURACY: Same as constant current mode.

BANDWIDTH: 5kHz typical.
OUTPUT RESISTANCE: 10kΩ.

EXTERNAL MODULATION

INPUT RESISTANCE: 6.8kΩ.

SENSITIVITY: –10V increases magnitude of

programmed output by 100% of full scale;
+10V decreases magnitude of programmed
output by 100% of full scale.

ACCURACY: 2% typical, DC to 60Hz.

MAXIMUM MODULATION: Modulation and

programmed setting should not cause oper­ation exceeding the range of 0 to 100% of full
scale.

MODULATION FREQUENCY: 600Hz band-

width.

IEEE-488 BUS

IMPLEMENTATION

(IEEE-488-1978)

MULTILINE COMMANDS: DCL, LLO, SDC,

GET, GTL, UNT, UNL, SPE, SPD.

UNILINE COMMANDS: IFC, REN, EOI,

SRQ, ATN.

INTERFACE FUNCTIONS: SH1, AH1, T6,

TE0, L4, LE0, SR1, RL1, PP0, DC1, DT1,
C0, E1.

PROGRAMMABLE PARAMETERS: Output

(Operate or Standby), Range, Voltage,
Current, Trigger Mode, Sink, Modulation
(Voltage or Current), Display Mode,
Output Prefix (data format on readback),
SRQ Mask, EOI, Terminator Characters,
Status, Self Test, Memory Location (100
point memory), Dwell Time.

GENERAL

DISPLAY: Dual 31⁄2-digit LED (0.5 in) displays indicate pro-

grammed values in Standby and output values in
Operate.

FRONT PANEL PROGRAMS: COPY, SINK, IEEE Address,

MOD V, MOD I, TEST, RESET.

READBACK ACCURACY: Same as output accuracy.
STANDBY: Programs output to 0V, 0A without changing

ranges or polarity.

LOAD TRANSIENT RECOVERY TIME: With a resistive load

the output will recover 90% of any load changes within
1ms after end of changes, provided the changes do not
cause transfer to another control mode.

LINE REGULATION: <0.01% output change for AC power

line changes within specified limits.

PROGRAM MEMORY (battery backed-up): Stores up to

100 output settings.

Range of Dwell Times: 10ms to 1000s.
Accuracy of Dwell Times: ±(0.05% + 2ms).

BATTERY BACKUP:Rechargeable 3.6V nickel-cadmium. 1

month retention of data with unit turned off.

TRIGGER: IN and OUT TTL-compatible.
PROGRAMMING RESPONSE TIME: <100ms on fixed

range (typical).

MAXIMUM COMMON MODE VOLTAGE (output or output

common to chassis): 100V DC.

OUTPUT CONNECTIONS: Quick disconnect card with

screw terminals for output, modulation, current moni­tor, and external sense. BNC (chassis isolated) connec­tors for TRIGGER IN/OUT.

SELF TEST: Analog and digital circuits tested at power-on.

Power supplies, temperatures, and output continuously
monitored.

WARM-UP: 10 minutes to rated accuracy.

COOLING: Internal fan for forced air cooling.

POWER: 105–125 or 210–250V AC (internally switch select-

able), 50 or 60Hz, 500VA maximum.

ENVIRONMENT: Operating: 0° to 50°C, <80% non-

condensing RH below 35°C. Storage: –25° to 70°C.

DIMENSIONS, WEIGHT: 133mm high × 435mm wide ×

448mm deep (5
(24 lb).

ACCESSORIES SUPPLIED: Output Connector, instruction

manual.

ACCESSORIES AVAILABLE:

Model 2288: Fixed Rack Mounting Kit
Model 2289: Slide Rack Mounting Kit
Model 7008-3: IEEE-488 Cable, 0.9m (3 ft)
Model 7008-6: IEEE-488 Cable, 1.8m (6 ft)

1

⁄

4

in ×17

1

5

⁄

8

in ×17

⁄8in). Net weight 10.9kg

SBG 12/19/00

Rev. A