XR-8038A Datasheet, PDF (2/4 Pages) Exar Corporation – Precision Waveform Generator

XR-8038A
ELECTRICAL CHARACTERISTICS
Test Conditions: V_S = ±5V to ±15V, T_A = 25°C, R_L = 1MΩ, R_A = R_B = 10kΩ, C₁ = 3300pF, S₁ closed, unless
otherwise specified.
8038AM/8038A
PARAMETERS
MIN TYP MAX
GENERAL CHARACTERISTICS
Supply Voltage, V_S
Single Supply
Dual Supplies
Supply Current
10
30
±5
±15
12 15
FREQUENCY CHARACTERISTICS (Measured at Pin 9)
Range of Adjustment
Max. Operating Frequency
200
Lowest Practical Frequency
0.001
Max. Sweep Frequency of FM Input
FM Sweep Range
FM Linearity 10:1 Ratio
Range of Timing Resistors
Temperature Stability
XR-8038AM
XR-8038A
XR-8038AC
Power Supply Stability
OUTPUT CHARACTERISTICS
Square-Wave
Amplitude (Peak-to-Peak)
Saturation Voltage
Rise Time
Fall Time
Duty Cycle Adjustment
Triangle/Sawtooth/Ramp
Amplitude (Peak-to-Peak)
Linearity
Output Impedance
Sine-Wave Amplitude (Peak-to-Peak)
Distortion
Unadjusted
Adjusted
∆THD/∆T
100
1000:1
0.1
0.5
1000
50
50 100
0.05
0.9 0.98
0.2 0.4
100
40
2
98
0.3 0.33
0.05
200
0.2 0.22
0.7 1.5
0.5
0.5
8038AC
MIN TYP MAX
10
30
±5
±15
12 20
200
0.001
100
1000:1
0.2
0.5
1000
———
50
0.05
0.9 0.98
0.2 0.5
100
40
2
98
0.3 0.33
0.1
200
0.2 0.22
0.8 3
0.5
0.3
UNITS
V
V
mA
KHz
Hz
kHz
%
kΩ
ppm/°C
ppm/°C
%/V
x V_SPLY
V
nsec
nsec
%
x V_SPLY
%
Ω
x V_SPLY
%
%
%
CONDITIONS
V_S = ±10V (Note 1)
R_A = R_B, = 1.5kΩ, C₁ = 680pF
R_L = 10K
R_A = R_B = 1MΩ, C₁= 500µF
(Low Leakage Capacitor)
S₁ Open (Notes 2 & 3)
S₁ Open (Note 3)
Values of R_A and R_B
T_A = –55°C to +125°C
T_A = 0°C to +70°C
(Note 4)
Measured at Pin 9
R_L = 100kΩ
I_sink = 2mA
R_L = 4.7kΩ
R_L = 4.7kΩ
Measured at Pin 3.
R_L = 100kΩ
I_OUT = 5mA
R_L = 100kΩ
R_L = 1MΩ (Notes 5, 6 & 7)
R_L = 1MΩ (Notes 5, 6 & 7)
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Currents through R_A and R_B not included.
V_SUPPLY = 20V.
Apply sweep voltage at Pin 8.
V_CC – (1/3 V_SUPPLY – 2) ≤ V_{PIN 8} ≤ V_CC
V_SUPPLY = Total Supply Voltage across the IC
10V ≤ V_S ≤ 30V or ±5V ≤ V_S ≤ 15V.
Pin 12 open circuited (No. 82kΩ resistor as standard 8038).
Triangle duty cycle set at 50%, use R_A and R_B.
As R_L is decreased distortion will increase, R_L min ≈ 50kΩ.
2