Datasheet

V
DD
to V
SS
............................................................-0.3V to +6.0V
V
DDF
to V
SS
.........................................................-0.3V to +6.0V
V
SSF
to V
SS
..........................................................-0.3V to +0.3V
All Other Pins to V
SS
..................................-0.3V to (V
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
28-Pin SSOP (derate 9.1mW/°C above +70°C) ..........727mW
Operating Temperature Ranges
MAX1464CAI .....................................................0°C to +70°C
MAX1464C/W.....................................................0°C to +70°C
MAX1464EAI...................................................-40°C to +85°C
MAX1464AAI ................................................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
(V
DDF
= V
DD
= 4.5V to 5.5V, V
SSF
= V
SS
= 0V, f
CLK
= 4.0MHz, T
A
= T
MIN
to T
MAX
. Typical values are at V
DDF
= V
DD
= 5.0V, V
SSF
= V
SS
= 0V, T
A
= +25°C, unless otherwise noted.) (Note 1)
MAX1464 Low-Power, Low-Noise Multichannel
Sensor Signal Processor
www.maximintegrated.com
Maxim Integrated │ 2
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SUPPLY
Supply Voltage V
DD
V
SS
= V
SSF
= 0V 4.5 5.0 5.5 V
FLASH Supply Voltage V
DDF
V
SS
= V
SSF
= 0V 4.5 5.0 5.5 V
Base Operating Current I
BO
CPU stopped (Note 2) 575 720 890 µA
CPU Current I
CPU
All modules off, CPU = on, additive to I
BO
,
I
CPU
= I
DD
+ I
DDF
(Note 3)
540 840 1240 µA
ADC Current (Note 3) I
ADC
All modules off, ADC = on, ADC clk = 1MHz,
additive to I
BO
; the CPU and ADC are not on
at the same time
690 1040 1394
µA
All modules off, ADC = on, ADC clk = 7kHz,
additive to I
BO
; the CPU and ADC are not on
at the same time
465 765 1060
DAC Current I
DACn
All modules off, DAC = on, additive to I
BO
(n = 1 or 2) (Note 4)
425 550 730 µA
Large Op-Amp Current I
OPLGn
All modules off, CPU stopped, large op amp
= on (n = 1 or 2)
430 673 1020 µA
Small Op-Amp Current I
OPSMn
All modules off, CPU stopped, small op amp
= on (n = 1 or 2)
110 190 265 µA
POWER-ON RESET
V
DDF
POR Threshold V
DD
> V
DDF
3.6 4.0 4.3 V
V
DDF
POR Hysteresis -0.85 V
ANALOG INPUT
Differential Input Impedance
(INP1 to INM1 and
INP2 to INM2)
R
DIN
PGA[4:0] = 00000, CLK[2:0] = 000 430
kΩPGA[4:0] = 01010
,
CLK[2:0] = 000 55
PGA[4:0] = 11111, CLK[2:0] = 000 36
PGA[4:0] = 00000, CLK[2:0] = 011 3.4 MΩ
PGA[4:0] = 01010, CLK[2:0] = 011 440
kΩ
PGA[4:0] = 11111, CLK[2:0] = 011 288
PGA[4:0] = 00000, CLK[2:0] = 110 27
MΩPGA[4:0] = 01010, CLK[2:0] = 110 3.5
PGA[4:0] = 11111, CLK[2:0] = 110 2.3
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics