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MAX113CAG

P1-P3P4-P6P7-P9P10-P12
_______________General Description
The MAX113/MAX117 are microprocessor-compatible,
8-bit, 4-channel and 8-channel analog-to-digital con-
verters (ADCs). They operate from a single +3V supply
and use a half-flash technique to achieve a 1.8µs con-
version time (400ksps). A power-down pin (PWRDN)
reduces current consumption to 1µA typical. The
devices return from power-down mode to normal oper-
ating mode in less than 900ns, allowing large supply-
current reductions in burst-mode applications. (In burst
mode, the ADC wakes up from a low-power state at
specified intervals to sample the analog input signals.)
Both converters include a track/hold, enabling the ADC
to digitize fast analog signals.
Microprocessor (µP) interfaces are simplified because
the ADC can appear as a memory location or I/O port
without external interface logic. The data outputs use
latched, three-state buffer circuitry for direct connection
to an 8-bit parallel µP data bus or system input port.
The MAX113/MAX117 input/reference configuration
enables ratiometric operation.
The 4-channel MAX113 is available in a 24-pin DIP or
SSOP. The 8-channel MAX117 is available in a 28-pin
DIP or SSOP. For +5V applications, refer to the
MAX114/MAX118 data sheet.
________________________Applications
Battery-Powered Systems Portable Equipment
System-Health Monitoring Remote Data Acquisition
Communications Systems
____________________________Features
♦ +3.0V to +3.6V Single-Supply Operation
♦ 4 (MAX113) or 8 (MAX117) Analog Input Channels
♦ Low Power: 1.5mA (operating mode)
1µA (power-down mode)
♦ Total Unadjusted Error ≤ 1LSB
♦ Fast Conversion Time: 1.8µs per Channel
♦ No External Clock Required
♦ Internal Track/Hold
♦ Ratiometric Reference Inputs
♦ Internally Connected 8th Channel Monitors
Reference Voltage (MAX117)
MAX113/MAX117
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down
________________________________________________________________
Maxim Integrated Products
1
4-BIT
DAC
4-BIT
FLASH
ADC
(4MSBs)
4-BIT
FLASH
ADC
(4LSBs)
TIMING AND
CONTROL
ADDRESS
LATCH 
DECODE
REF+
16
THREE-
STATE
OUTPUT
DRIVERS
D7
D6
D5
D4
D3
D2
D1
D0
MUX
*IN7
*IN8
Σ
REF+
*IN6
*IN5
IN4
IN3
IN2
IN1
A0
A1 A2 REF-
PWRDN
RD
MODE
INT
WR/RDY
CS
MAX113/MAX117
*MAX117 ONLY
_________________________________________________________Functional Diagram
19-1081; Rev 1; 8/96
PART
MAX113CNG
MAX113CAG
MAX113C/D 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
24 Narrow Plastic DIP
24 SSOP
Dice*
______________Ordering Information
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAX113ENG
MAX113EAG
MAX113MRG -55°C to +125°C
-40°C to +85°C
-40°C to +85°C 24 Narrow Plastic DIP
24 SSOP
24 Narrow CERDIP**
Ordering Information continued at end of data sheet.
*Dice are specified at T
A
= +25°C, DC parameters only.
**Contact factory for availability.
Pin Configuration appears at end of data sheet.
MAX113/MAX117
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +3V to +3.6V, REF+ = 3V, REF- = GND, Read Mode (MODE = GND), T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
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.
V
DD
to GND..............................................................-0.3V to +7V
Digital Input Voltage to GND......................-0.3V to (V
DD
+ 0.3V)
Digital Output Voltage to GND...................-0.3V to (V
DD
+ 0.3V)
REF+ to GND..............................................-0.3V to (V
DD
+ 0.3V)
REF- to GND...............................................-0.3V to (V
DD
+ 0.3V)
IN_ to GND.................................................-0.3V to (V
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
24 Narrow Plastic DIP
(derate 13.33mW/°C above +70°C)................................1.08W
24 SSOP (derate 8.00mW/°C above +70°C).................640mW
24 Narrow CERDIP (derate 12.50mW/°C above +70°C) .....1W
28 Wide Plastic DIP
(derate 14.29mW/°C above +70°C)................................1.14W
28 SSOP (derate 9.52mW/°C above +70°C).................762mW
28 Wide CERDIP (derate 16.67mW/°C above +70°C)....1.33W
Operating Temperature Ranges
MAX113C_G/MAX117C_I ....................................0°C to +70°C
MAX113E_G/MAX117E_I..................................-40°C to +85°C
MAX113MRG/MAX117MJI..............................-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
V
IN_
= 3Vp-p
MAX11_M, f
SAMPLE
= 340kHz, f
IN
= 30.725kHz
GND < V
IN_
< V
DD
MAX11_C/E, f
SAMPLE
= 400kHz, f
IN
= 30.273kHz
No-missing-codes guaranteed
CONDITIONS
VV
REF-
V
DD
REF+ Input Voltage Range
kΩ124R
REF
Reference Resistance
pF32C
IN
_Input Capacitance
µA±3I
IN
_Input Leakage Current
VV
REF-
V
REF+
V
IN
_Input Voltage Range
V/µs0.28 0.5Input Slew Rate, Tracking
LSB±1TUETotal Unadjusted Error
Bits8NResolution
MHz0.3Input Full-Power Bandwidth
dB
45
SINAD
Signal-to-Noise Plus
Distortion Ratio
45
LSB±1DNLDifferential Nonlinearity
LSB±1Zero-Code Error
LSB±1Full-Scale Error
LSB±1/4Channel-to-Channel Mismatch
UNITSMIN TYP MAXSYMBOLPARAMETER
MAX11_M, f
SAMPLE
= 340kHz, f
IN
= 30.725kHz
MAX11_C/E, f
SAMPLE
= 400kHz, f
IN
= 30.273kHz
dB
-50
THDTotal Harmonic Distortion
-50
MAX11_M, f
SAMPLE
= 340kHz, f
IN
= 30.725kHz
MAX11_C/E, f
SAMPLE
= 400kHz, f
IN
= 30.273kHz
dB
50
SFDR
Spurious-Free Dynamic
Range
50
VGND V
REF+
REF- Input Voltage Range
ACCURACY (Note 1)
DYNAMIC PERFORMANCE
ANALOG INPUT
REFERENCE INPUT
MAX113/MAX117
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3V to +3.6V, REF+ = 3V, REF- = GND, Read Mode (MODE = GND), T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Note 1: Accuracy measurements performed at V
DD
= +3.0V. Operation over supply range is guaranteed by power-supply rejection test.
Note 2: Guaranteed by design.
Note 3: Power-down current increases if logic inputs are not driven to GND or V
DD
.
WR
CS, RD, PWRDN, A0, A1, A2
µA
±3
I
INH
D0–D7, RDY
D0–D7, RDY, digital outputs = 0V to V
DD
I
SOURCE
= 20µA, INT, D0–D7
I
SINK
= 400µA, INT, D0–D7
MODE
MODE
I
SINK
= 20µA, INT, D0–D7
CS, WR, RD, PWRDN, A0, A1, A2
CS, WR, RD, PWRDN, MODE, A0, A1, A2
CS, WR, RD, PWRDN, MODE, A0, A1, A2
CONDITIONS
Input High Current
±1
pFC
OUT
µAI
LKG
Three-State Capacitance
(Note 2)
V
DD
- 0.1
V0.4V
OL
Output Low Voltage
0.1
pF58C
IN
Input Capacitance (Note 2)
µA±1I
INL
Input Low Current
15 100
V
2.4
V
INH
Input High Voltage
MODE
2
CS, WR, RD, PWRDN, A0, A1, A2
V
UNITSMIN TYP MAXSYMBOLPARAMETER
0.8
V
INL
Input Low Voltage
0.66
2.5 5
V3.0 3.6V
DD
Supply Voltage
V
DD
= 3.0V to 3.6V, V
REF
= 3.0V
CS = RD = V
DD
, PWRDN = 0V (Note 3)
LSB±1/16 ±1/4PSRPower-Supply Rejection
µA110Power-Down V
DD
Current
V
DD
= 3.6V, CS = RD = 0V,
PWRDN = V
DD
2.5 6
MAX11_C
RDY, I
SINK
= 1mA 0.4
I
SOURCE
= 400µA, INT, D0–D7
V
V
DD
- 0.4
V
OH
Output High Voltage
1.5 3
V
DD
= 3.0V, CS = RD = 0V,
PWRDN = V
DD
mA
1.5 3.5
I
DD
V
DD
Supply Current
MAX11_E/M
MAX11_C
MAX11_E/M
58
LOGIC INPUTS
LOGIC OUTPUTS
POWER REQUIREMENTS
±3Three-State Current
P1-P3P4-P6P7-P9P10-P12

MAX113CAG

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