MAX1284BESA+ Maxim Integrated Products, MAX1284BESA+ Datasheet - Page 7

• Manufacturer Part Number: MAX1284BESA+
• Description: IC ADC 12BIT 400KSPS 8-SOIC
• Manufacturer: Maxim Integrated Products

Specifications of MAX1284BESA+

• Number Of Bits: 12
• Sampling Rate (per Second): 400k
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 2.5mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Number Of Adc Inputs: 1
• Architecture: SAR
• Conversion Rate: 400 KSPs
• Resolution: 12 bit
• Interface Type: Serial
• Voltage Reference: Internal 2.5 V
• Supply Voltage (max): 5 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(MAX1284: V
T
A
= +25°C, unless otherwise noted.)
PIN
1
2
3
4
5
6
7
8
400ksps/300ksps, Single-Supply, Low-Power,
DD
3.00
2.75
2.50
2.25
2.00
1.75
1.50
Serial 12-Bit ADCs with Internal Reference
= +5.0V, f
2.5
SUPPLY CURRENT vs. SUPPLY VOLTAGE
NAME
SHDN
DOUT
SCLK
CODE = 1111 1111 1111
R
C
GND
V
REF
AIN
L
CS
L
_______________________________________________________________________________________
DD
= ∞
= 10pF
3.0
SUPPLY VOLTAGE (V)
SCLK
3.5
STATIC
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 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
(MAX1284) or 4.8MHz (MAX1285).
CONVERTING
SCLK = 4.8MHz
4.0
= 6.4MHz, MAX1285: V
CONVERTING
SCLK = 6.4MHz
4.5
5.0
Typical Operating Characteristics (continued)
5.5
DD
REF
= +3.0V, f
range
SCLK
FUNCTION
= 4.8MHz; C
3.0
2.7
2.4
2.1
1.8
1.5
-40
SUPPLY CURRENT vs. TEMPERATURE
V
V
V
DD
DD
DD
-20
= 3V, CONVERTING
LOAD
= 5V, STATIC
= 5V, CONVERTING
0
TEMPERATURE (°C)
= 20pF, 4.7µF capacitor at REF,
20
V
DD
Pin Description
40
= 3V, STATIC
60
80
100
7