Datasheet MAX038 (Analog Devices) - 3
| Fabricante | Analog Devices |
| Descripción | High-Frequency Waveform Generator |
| Páginas / Página | 17 / 3 — High-Frequency Waveform Generator. ELECTRICAL CHARACTERISTICS … |
| Formato / tamaño de archivo | PDF / 491 Kb |
| Idioma del documento | Inglés |
High-Frequency Waveform Generator. ELECTRICAL CHARACTERISTICS (continued). PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. UNITS
Línea de modelo para esta hoja de datos
Versión de texto del documento
MAX038
High-Frequency Waveform Generator ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, GND = DGND = 0V, V+ = DV+ = 5V, V- = -5V, VDADJ = VFADJ = VPDI = VPDO = 0V, CF = 100pF, RIN = 25kΩ RL = 1kΩ, CL = 20pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SYNC OUTPUT
Output Low Voltage VOL ISINK = 3.2mA 0.3 0.4 V Output High Voltage VOH ISOURCE = 400µA 2.8 3.5 V Rise Time tR 10% to 90%, RL = 3kΩ, CL = 15pF 10 ns Fall Time tF 90% to 10%, RL = 3kΩ, CL = 15pF 10 ns Duty Cycle dcSYNC 50 %
DUTY-CYCLE ADJUSTMENT (DADJ)
DADJ Input Current IDADJ 190 250 320 µA DADJ Voltage Range VDADJ ±2.3 V Duty-Cycle Adjustment Range dc -2.3V ≤ VDADJ ≤ +2.3V 15 85 % DADJ Nonlinearity dc/VFADJ -2V ≤ VDADJ ≤ +2V 2 4 % Change in Output Frequency F with DADJ o/VDADJ -2V ≤ VDADJ ≤ +2V ±2.5 ±8 % Maximum DADJ Modulating FDC 2 MHz Frequency
FREQUENCY ADJUSTMENT (FADJ)
FADJ Input Current IFADJ 190 250 320 µA FADJ Voltage Range VFADJ ±2.4 V Frequency Sweep Range Fo -2.4V ≤ VFADJ ≤ +2.4V ±70 % FM Nonlinearity with FADJ Fo/VFADJ -2V ≤ VFADJ ≤ +2V ±0.2 % Change in Duty Cycle with FADJ dc/VFADJ -2V ≤ VFADJ ≤ +2V ±2 % Maximum FADJ Modulating F Frequency F 2 MHz
VOLTAGE REFERENCE
Output Voltage VREF IREF = 0 2.48 2.50 2.52 V Temperature Coefficient VREF/°C 20 ppm/°C 0mA ≤ IREF ≤ 4mA (source) 1 2 Load Regulation VREF/IREF mV/mA -100µA ≤ IREF ≤ 0µA (sink) 1 4 Line Regulation VREF/V+ 4.75V ≤ V+ ≤ 5.25V (Note 2) 1 2 mV/V
LOGIC INPUTS (A0, A1, PDI)
Input Low Voltage VIL 0.8 V Input High Voltage VIH 2.4 V Input Current (A0, A1) IIL, IIH VA0, VA1 = VIL, VIH ±5 µA Input Current (PDI) IIL, IIH VPDI = VIL, VIH ±25 µA
POWER SUPPLY
Positive Supply Voltage V+ 4.75 5.25 V SYNC Supply Voltage DV+ 4.75 5.25 V Negative Supply Voltage V -4.75 -5.25 V Positive Supply Current I+ 35 45 mA SYNC Supply Current IDV+ 1 2 mA Negative Supply Current I 45 55 mA
Note 1:
Guaranteed by duty-cycle test on square wave.
Note 2:
VREF is independent of V-. Maxim Integrated 3 Document Outline Blank Page
High-Frequency Waveform Generator ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, GND = DGND = 0V, V+ = DV+ = 5V, V- = -5V, VDADJ = VFADJ = VPDI = VPDO = 0V, CF = 100pF, RIN = 25kΩ RL = 1kΩ, CL = 20pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SYNC OUTPUT
Output Low Voltage VOL ISINK = 3.2mA 0.3 0.4 V Output High Voltage VOH ISOURCE = 400µA 2.8 3.5 V Rise Time tR 10% to 90%, RL = 3kΩ, CL = 15pF 10 ns Fall Time tF 90% to 10%, RL = 3kΩ, CL = 15pF 10 ns Duty Cycle dcSYNC 50 %
DUTY-CYCLE ADJUSTMENT (DADJ)
DADJ Input Current IDADJ 190 250 320 µA DADJ Voltage Range VDADJ ±2.3 V Duty-Cycle Adjustment Range dc -2.3V ≤ VDADJ ≤ +2.3V 15 85 % DADJ Nonlinearity dc/VFADJ -2V ≤ VDADJ ≤ +2V 2 4 % Change in Output Frequency F with DADJ o/VDADJ -2V ≤ VDADJ ≤ +2V ±2.5 ±8 % Maximum DADJ Modulating FDC 2 MHz Frequency
FREQUENCY ADJUSTMENT (FADJ)
FADJ Input Current IFADJ 190 250 320 µA FADJ Voltage Range VFADJ ±2.4 V Frequency Sweep Range Fo -2.4V ≤ VFADJ ≤ +2.4V ±70 % FM Nonlinearity with FADJ Fo/VFADJ -2V ≤ VFADJ ≤ +2V ±0.2 % Change in Duty Cycle with FADJ dc/VFADJ -2V ≤ VFADJ ≤ +2V ±2 % Maximum FADJ Modulating F Frequency F 2 MHz
VOLTAGE REFERENCE
Output Voltage VREF IREF = 0 2.48 2.50 2.52 V Temperature Coefficient VREF/°C 20 ppm/°C 0mA ≤ IREF ≤ 4mA (source) 1 2 Load Regulation VREF/IREF mV/mA -100µA ≤ IREF ≤ 0µA (sink) 1 4 Line Regulation VREF/V+ 4.75V ≤ V+ ≤ 5.25V (Note 2) 1 2 mV/V
LOGIC INPUTS (A0, A1, PDI)
Input Low Voltage VIL 0.8 V Input High Voltage VIH 2.4 V Input Current (A0, A1) IIL, IIH VA0, VA1 = VIL, VIH ±5 µA Input Current (PDI) IIL, IIH VPDI = VIL, VIH ±25 µA
POWER SUPPLY
Positive Supply Voltage V+ 4.75 5.25 V SYNC Supply Voltage DV+ 4.75 5.25 V Negative Supply Voltage V -4.75 -5.25 V Positive Supply Current I+ 35 45 mA SYNC Supply Current IDV+ 1 2 mA Negative Supply Current I 45 55 mA
Note 1:
Guaranteed by duty-cycle test on square wave.
Note 2:
VREF is independent of V-. Maxim Integrated 3 Document Outline Blank Page