MAX1084 Maxim, MAX1084 Datasheet - Page 7

• Manufacturer Part Number: MAX1084
• Description: 400ksps/300ksps / Single-Supply / Low-Power / Serial 10-Bit ADCs with Internal Reference
• Manufacturer: Maxim

(MAX1084: V
T
A
= +25°C, unless otherwise noted.)
PIN
1
2
3
4
5
6
7
8
400ksps/300ksps, Single-Supply, Low-Power,
DD
2.510
2.508
2.506
2.504
2.502
2.500
2.498
2.496
2.494
2.492
2.490
Serial 10-Bit ADCs with Internal Reference
3.00
2.75
2.50
2.25
2.00
1.75
1.50
= +5.0V, f
NAME
SHDN
DOUT
2.5
SCLK
2.5
GND
SUPPLY CURRENT vs. SUPPLY VOLTAGE
V
REF
AIN
CS
CODE = 1111 1111 1111
R
C
DD
_______________________________________________________________________________________
L
L
INTERNAL REFERENCE VOLTAGE
= ∞
= 10pF
3.0
3.0
vs. SUPPLY VOLTAGE
SCLK
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
3.5
Positive Supply Voltage
Sampling Analog Input, 0 to V
Active-Low Shutdown Input. Pulling SHDN low shuts down the device and reduces the supply current
to 2µA (typ).
Reference Voltage for Analog-to-Digital Conversion. Internal 2.5V reference output. Bypass with a
4.7µF capacitor.
Analog and Digital Ground
Serial Data Output. DOUT changes state at SCLK’s rising edge. High impedance when CS is high.
Active-Low Chip Select. Initiates conversions on the falling edge. When CS is high, DOUT is high
impedance.
Serial Clock Input. SCLK drives the conversion process and clocks data out at rates up to 6.4MHz
(MAX1084) or 4.8MHz (MAX1085).
3.5
STATIC
CONVERTING,
SCLK = 4.8MHz
= 6.4MHz; MAX1085: V
4.0
4.0
CONVERTING,
SCLK = 6.4MHz
4.5
4.5
5.0
Typical Operating Characteristics (continued)
5.0
5.5
5.5
DD
REF
= +3.0V, f
Range
SCLK
FUNCTION
= 4.8MHz; C
2.510
2.508
2.506
2.504
2.502
2.500
2.498
2.496
2.494
2.492
2.490
3.0
2.7
2.4
2.1
1.8
1.5
-40
-40
SUPPLY CURRENT vs. TEMPERATURE
V
V
V
DD
DD
INTERNAL REFERENCE VOLTAGE
DD
LOAD
-20
-20
= 3V, CONVERTING
= 5V, STATIC
= 5V, CONVERTING
vs. TEMPERATURE
0
0
= 20pF, 4.7µF capacitor at REF,
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
V
Pin Description
DD
40
40
= 3V, STATIC
60
60
80
80
100
100
7