Features: • Wide ±12V output levels
• 250ps dispersion
• 3ns delay times
• 1V/ns slew rate-adjustable
• Low overshoot and aberrations in 50 systems
• Three-state output
• Power-down mode reduces output leakage to nanoamperes
• Overcurrent sense flag available to protect internal output devices
• Buffered analog inputs
• Differential logic inputs are compatible with ECL, TTL, and CMOSApplication• Memory testers
• ASIC testers
• Functional board testers
• Analog/digital incoming component verifiers
• Logic emulatorsPinout
SpecificationsVS Voltage between V+ and V- . . . . . . . . . . . . . . . . . .....+33V
V- Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . -.....18V
B+ Supply Voltage. . . . . . . . . . . . . . . . . . . . . . ...... VINH to V+
B- Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . ....... V- to VINL
ISR Input Current . . . . . . . . . . . . . . . . . . . . . . ..... 0mA to 3mA
VSR Input Voltage, Power-Down Mode . . . . . . .... -0.3V to +6V
Shunt+ Input Voltage . . . . . . . . . . . . . . . . . . . .. (B+) -5V to B+
Shunt- Input Voltage . . . . . . . . . . . . . . . . . . . . . .B- to (B-) +5V
Data, Data Input Voltages . . . . . . . . . . . . . .. . . . . . V- to V+ or
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............. ±6V Differential
OE, OE Input Voltages . . . . . . . . . . . . . . . . . . . . . . . V- to V+ or
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............. ±6V Differential
E, E Input Voltages . . . . . . . . . . . . . . . . . . . . . . . . . V- to V+ or
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..... .±6V Differential
Sense Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . V- to V+
VINH Input Voltage . . . . . . . . . . . . . . . . . . . . .VINL -0.3V to B+
VINL Input Voltage . . . . . . . . . . . . . . . . . . . . B- to VINH +0.3V
IOUT Output Current. . . . . . . . . . . . . . . . . . . -60mA to +60mA
TJ Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . 150°C
TA Operating Ambient Temperature Range . .. -0°C to +75°C
TST Storage Temperature . . . . . . . . . . . . . . -65°C to +150°C
PD Power Dissipation (TA = 25°C)
(See Curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . ...... . . . .3.1W
DescriptionThe EL1056 is designed to drive highquality test signals into close or terminated loads. It has a dispersion of 250ps or less - whether due to signal size or direction of edge. It can output a very wide 24V output span, encompassing all logic families as well as analog levels. The EL1056 is fabricated in Elantec's oxide isolated process, which eliminates the possibility of latch-up and provides a very durable circuit.
The output can be turned off in two ways; the OE pins allow the output to be put in a high-impedance state which makes the output look like a large resistance in parallel with 3pF, even for back-driven signals with as much as 2.5V/s slew rate. The E pins put the output in an even higher impedance state, guaranteed to 150nA leakage in the EL1056A. This allows accurate measurements on the bus without disconnecting the EL1056 with a relay.
The EL1056 incorporates an output current sense which can warn the system controller that excessive output current is flowing. The trip point is set by two external resistors.
EL1056A Data Sheet
