Typical operating characteristics (continued) – Rainbow Electronics MX7705 User Manual
Page 14
MX7705
16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADC
14
______________________________________________________________________________________
SUPPLY CURRENT vs. f
CLKIN
(3V)
f
CLKIN
(MHz)
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
2.6
0.3
0.4
0.5
0.6
0.2
MX7705 toc13
SUPPLY CURRENT (mA)
A
A: BUFFERED MODE
CLK = 1,
GAIN = 128
B: BUFFERED MODE
CLK = 1,
GAIN = 1
E: UNBUFFERED MODE
CLK = 0,
GAIN = 1, 128
C: BUFFERED MODE
CLK = 0,
GAIN = 1, 128
D: UNBUFFERED MODE
CLK = 1,
GAIN = 1, 128
B
E
D
C
V
DD
= 3V
SUPPLY CURRENT vs. f
CLKIN
(5V)
f
CLKIN
(MHz)
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
2.6
0.35
0.45
0.55
0.65
0.25
MX7705 toc14
SUPPLY CURRENT (mA)
A
A: BUFFERED MODE
CLK = 1,
GAIN = 128
B: BUFFERED MODE
CLK = 1,
GAIN = 1
E: UNBUFFERED MODE
CLK = 0,
GAIN = 1, 128
C: BUFFERED MODE
CLK = 0,
GAIN = 1, 128
D: UNBUFFERED MODE
CLK = 1,
GAIN = 1, 128
B
E
D
C
V
DD
= 5V
GAIN
64
32
16
8
4
2
1
128
SUPPLY CURRENT vs. GAIN (3V)
0.3
0.4
0.5
0.6
0.2
MX7705 toc15
SUPPLY CURRENT (mA)
A
A: BUFFERED MODE
CLK = 1, CLKDIV = 1,
f
CLKIN
= 2.4576MHz
B: BUFFERED MODE
CLK = 1, CLKDIV = 0,
f
CLKIN
= 2.4576MHz
E: UNBUFFERED MODE
CLK = 1, CLKDIV = 0,
f
CLKIN
= 2.4576MHz
F: UNBUFFERED MODE
CLK = 0, CLKDIV = 0,
f
CLKIN
= 1MHz
C: BUFFERED MODE
CLK = 0, CLKDIV = 0,
f
CLKIN
= 1MHz
D: UNBUFFERED MODE
CLK = 1, CLKDIV = 1,
f
CLKIN
= 2.4576MHz
B
E
F
D
C
V
DD
= 3V
GAIN
64
32
16
8
4
2
1
128
SUPPLY CURRENT vs. GAIN (5V)
V
DD
= 5V
0.35
0.45
0.55
0.65
0.25
MX7705 toc16
SUPPLY CURRENT (mA)
A: BUFFERED MODE
CLK = 1, CLKDIV = 0,
f
CLKIN
= 2.4576MHz
B: BUFFERED MODE
CLK = 1, CLKDIV = 1,
f
CLKIN
= 2.4576MHz
E: UNBUFFERED MODE
CLK = 1, CLKDIV = 0,
f
CLKIN
= 2.4576MHz
F: UNBUFFERED MODE
CLK = 0, CLKDIV = 0,
f
CLKIN
= 1MHz
C: BUFFERED MODE
CLK = 0, CLKDIV = 0,
f
CLKIN
= 1MHz
D: UNBUFFERED MODE
CLK = 1, CLKDIV = 1,
f
CLKIN
= 2.4576MHz
B
E
F
D
C
A
Typical Operating Characteristics (continued)
(V
DD
= 3V or 5V, V
REF+
= 1.225V for V
DD
= 3V, V
REF+
= 2.5V for V
DD
= 5V, V
REF
- = GND, T
A
= +25°C, unless otherwise noted.)