Rainbow Electronics MAX1198 - Manual (Page 9)

MAX1198
Dual, 8-Bit, 100Msps, 3.3V, Low-Power ADC
with Internal Reference and Parallel Outputs
_______________________________________________________________________________________ 9
Typical Operating Characteristics (continued)
(V DD = 3.3V, OV DD = 2.5V, V REFIN = 2.048V, differential input at -1dB FS, f CLK = 100MHz, C L
≈ 10pF, T
A = +25 °C, unless otherwise
noted.)
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1198 toc26
TEMPERATURE ( °C)
V
REFOUT
(V)
60 35 10 -15
2.0340
2.0380
2.0420
2.0460
2.0500
2.0300
-40 85
INTERNAL REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
MAX1198 toc25
V DD (V)
V
REFOUT
(V)
3.45 3.30 3.15 3.00 2.85
2.0405
2.0410
2.0415
2.0420
2.0425
2.0430
2.0400
2.70 3.60
SNR/SINAD, THD/SFDR
vs. CLOCK DUTY CYCLE
MAX1198 toc24
CLOCK DUTY CYCLE (%)
SNR/SINAD, THD/SFDR (dB, dBc)
56 52 48 44
40
50
SFDR
THD
SINAD
SNR
60
70
80
30
40 60
f IN = 19.87089082MHz
DIGITAL SUPPLY CURRENT
vs. ANALOG INPUT FREQUENCY
MAX1198 toc23
ANALOG INPUT FREQUENCY (MHz)
I OVDD
(mA)
40 30 20 10
4
8
12
16
20
0
0 50
ANALOG SUPPLY CURRENT
vs. TEMPERATURE
MAX1198 toc22
TEMPERATURE ( °C)
I VDD
(mA)
60 35 10 -15
74
78
82
86
90
70
-40 85
SNR/SINAD, THD/SFDR
vs. SAMPLING SPEED
MAX1198 toc21
SAMPLING SPEED (Msps)
SNR/SINAD, THD/SFDR (dB, dBc)
100 80 60 40 20
48
56
64
SFDR
SNR
SINAD
THD
72
80
40
0 120
f
IN
= 19.87089082MHz
OFFSET ERROR vs. TEMPERATURE,
EXTERNAL REFERENCE V REFIN = 2.048V
MAX1198 toc20
TEMPERATURE ( °C)
OFFSET ERROR (%FS)
60 35 10 -15
-0.7
-0.2
0.3
0.8
-1.2
CHA
-40 85
CHB
GAIN ERROR vs. TEMPERATURE,
EXTERNAL REFERENCE V REFIN = 2.048V
MAX1198 toc19
TEMPERATURE ( °C)
GAIN ERROR (%FS)
60 35 10 -15
-0.1
0.1
0.3
0.5
-0.3
-40 85
CHB
CHA