MAX1391/MAX1394
falling edge of the sampling clock and the instant when
an actual sample is taken.
Aperture Jitter
Aperture jitter (t
AJ
) is the sample-to-sample variation in
the aperture delay (Figure 14).
DC Power-Supply Rejection Ratio (PSRR)
DC PSRR is defined as the change in the positive full-
scale transfer function point caused by a full range vari-
ation in the analog power-supply voltage (V
DD
).
Chip Information
TRANSISTOR COUNT: 9106
PROCESS: BiCMOS
16 ______________________________________________________________________________________
1.5V to 3.6V, 416ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 8-Bit, SAR ADCs
t
AD
T/H
(INTERNAL
SIGNAL)
SCLK
t
AJ
TRACK HOLD
ANALOG
INPUT
SAMPLED
DATA
THIRD FALLING EDGE
Figure 14. T/H Aperture Timing
AIN+ (AIN1)*
DOUT
SCLK
AIN- (AIN2)*
*INDICATES THE MAX1394
REF
INPUT
VOLTAGE
2 x AA CELLS
CPU
+
-
V
DD
GND
REF
INPUT
VOLTAGE
0.1μF
0.1μF
CS
OE
(CH1/CH2)*
MISO
SCL
SS
MAX1391
MAX1394
UNI/BIP
Typical Operating Circuit
MAX1391/MAX1394
______________________________________________________________________________________ 17
1.5V to 3.6V, 416ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 8-Bit, SAR ADCs
CS
OE
UNI/BIP
GND
REF
1
2
++
4
5
10
98
7
6
SCLK
DOUT
AIN-
AIN+
V
DD
3mm x 3mm TDFN
TOP VIEW
MAX1391
TOP VIEW
CS
OE
CH1/CH2
GND
REF
1
2
33
4
5
10
98
7
6
SCLK
DOUT
AIN2
AIN1
V
DD
3mm x 3mm TDFN
MAX1394
Pin Configurations
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
10 TDFN-EP T1033+1
21-0137
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the
package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the
package regardless of RoHS status.
MAX1391/MAX1394
1.5V to 3.6V, 416ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 8-Bit, SAR ADCs
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
18
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
Revision History
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
0 11/06 Initial release.
1 10/09
Removed the military grade packages from the General Description section,
Ordering Information table, and Absolute Maximum Ratings section.
1, 2

MAX1394ETB+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Analog to Digital Converters - ADC 8-Bit 2Ch 400ksps 3.6V Precision ADC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet