MAX1277_09 Datasheet, PDF (8/18 Pages) Maxim Integrated Products – 1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference

1.5Msps, Single-Supply, Low-Power, True-
Differential, 12-Bit ADCs with Internal Reference
Typical Operating Characteristics (continued)
(V_DD = +3V, V_L = V_DD, f_SCLK = 24MHz, f_SAMPLE = 1.5Msps, T_A = -40°C to +85°C, unless otherwise noted. Typical values are mea-
sured at T_A = +25°C.)
V_DD SUPPLY CURRENT
vs. CONVERSION RATE
8
V_L SUPPLY CURRENT
vs. TEMPERATURE
0.50
0.40
6
CONVERSION, V_L = 3V
0.30
4
CONVERSION, V_L = 1.8V
0.20
2
0.10
0
0 250 500 750 1000 1250 1500
f_SAMPLE (kHz)
0
-40 -15 10
35
60
85
TEMPERATURE (°C)
V_L SUPPLY CURRENT
vs. CONVERSION RATE
250
200
V_L = 3V
150
100
50
V_L = 1.8V
0
0 250 500 750 1000 1250 1500
f_SAMPLE (kHz)
REFERENCE VOLTAGE
vs. LOAD CURRENT (SOURCE)
2.05
REFERENCE VOLTAGE
vs. TEMPERATURE
2.06
2.05
2.04
2.03
2.02
2.01
2.00
-40 -15
10
35
60
85
TEMPERATURE (°C)
REFERENCE VOLTAGE
vs. LOAD CURRENT (SINK)
2.08
2.04
2.07
2.03
2.06
2.02
2.05
2.01
0
2
4
6
8
2.04
0
50
100
150
200
LOAD CURRENT (mA)
LOAD CURRENT (μA)
8 _______________________________________________________________________________________