Typical operating characteristics (continued), Pin description – Rainbow Electronics MAX108 User Manual
Page 9
MAX108
±5V, 1.5Gsps, 8-Bit ADC with
On-Chip 2.2GHz Track/Hold Amplifier
_______________________________________________________________________________________
9
Typical Operating Characteristics (continued)
(V
CC
A = V
CC
I = V
CC
D = +5V, V
EE
= -5V, V
CC
O = +3.3V, REFIN connected to REFOUT, f
S
= 1.5Gsps, T
A
= +25°C, unless otherwise
noted.)
-0.5
-0.2
-0.3
-0.4
-0.1
0
0.1
0.2
0.3
0.4
0.5
0
32
64
96
128 160
192 224
256
DIFFERENTIAL NONLINEARITY
vs. OUTPUT CODE
(LOW-FREQUENCY SERVO-LOOP DATA)
MAX108toc25
OUTPUT CODE
DNL (LSB)
DREADY
200mV/div
DATA
200mV/div
DREADY RISE/FALL TIME,
DATA-OUTPUT RISE/FALL TIME
MAX108 toc26
500ps/div
1.0
1.1
1.2
1.3
1.4
1.5
0
1000
500
1500
2000
2500
VSWR vs. ANALOG INPUT FREQUENCY
MAX108toc27
ANALOG INPUT FREQUENCY (MHz)
VSWR
-128.0
-102.4
-51.2
-76.8
-25.6
0
0
300
150
450
600
750
TWO-TONE INTERMODULATION FFT PLOT
(f
IN1
= 247.1008301MHz, f
IN2
= 253.3264160MHz,
7dB BELOW FULL SCALE, RECORD LENGTH 16,384)
MAX108 toc28
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
f
IN
1
f
IN
2
Pin Description
NAME
FUNCTION
A1–A4, A6, A7, B1, B2, C1, C2, D1–D3,
G1, H1, J2, J3, K1–K3, L2, L3, M1, N1,
T2, T3, U1, V1, V2, W1–W4
GNDI
Analog Ground. For T/H amplifier, clock distribution, bandgap
reference, and reference amplifier.
A5, B5, C5, H2, H3, M2, M3, U5, V5, W5
V
CC
I
Analog Supply Voltage, +5V. Supplies T/H amplifier, clock distri-
bution, bandgap reference, and reference amplifier.
CONTACT
A8, B8, C8, U6, V6, W6
GNDA
Analog Ground. For comparator array.
A9, B9, C9, U7, V7, W7
V
CC
A
Analog Supply Voltage, +5V. Supplies analog comparator array.
A11, B11, B16, B17, C11, C16, U9, U17,
V9, V17, V18, W9
GNDD
Digital Ground
A10, E17, F2, P3, R17, R18
TESTPOINT (T.P.)
Test Point.
Do not connect.