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MAX5109EEE+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
General Description
The MAX5109 dual 8-bit digital-to-analog converters
(DACs) feature nonvolatile registers. These nonvolatile
registers store the DAC operating modes and output
states, allowing the DACs to initialize to specified con-
figurations at power-up.
Precision on-chip output buffers swing rail-to-rail, and
provide 8µs settling time. The I
2
C-compatible, 2-wire
serial interface allows for a maximum clock frequency
of 400kHz.
The MAX5109 has independent high and low reference
inputs allowing maximum output voltage range flexibili-
ty. The reference rails accept voltage inputs that range
from ground to the positive supply rail.
This device operates from a single +2.7V to +5.25V sup-
ply and consumes 200µA per DAC. A software-con-
trolled power-down mode decreases supply current to
less than 25µA. A software-controlled mute mode sets
each DAC, or both DACs simultaneously, to their respec-
tive REFL_ voltages. The MAX5109 also includes an
asynchronous MUTE input, that drives both DAC outputs
simultaneously to their respective REFL_ voltages.
The MAX5109 is available in a 16-pin QSOP and is
specified for operation over the extended (-40°C to
+85°C) temperature range.
Applications
Digital Gain and Offset Adjustments
Programmable Attenuators
Portable Instruments
Power-Amp Bias Control
ATE Calibration
Laser Biasing
Features
♦ Nonvolatile Registers Initialize DACs to Stored
States
♦ +2.7V to +5.25V Single-Supply Operation
♦ Dual 8-Bit DACs with Independent High and Low
Reference Inputs
♦ Rail-to-Rail Output Buffers
♦ Low 200µA per DAC Supply Current
♦ Power-Down Mode Reduces Supply Current to
25µA (max)
♦ 400kHz, I
2
C-Compatible, 2-Wire Serial Interface
♦ Asynchronous MUTE Input
♦ Small 16-Pin QSOP Package
MAX5109
Nonvolatile, Dual, 8-Bit DACs with 2-Wire Serial
Interface
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-3585; Rev 0; 2/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART TEMP RANGE PIN-PACKAGE
MAX5109EEE
-40°C to +85°C 16 QSOP
Pin Configuration and Typical Operating Circuit appear at
end of data sheet.
DAC0
NONVOLATILE/
VOLATILE
REGISTERS
DAC1
NONVOLATILE/
VOLATILE
REGISTERS
REFL0
OUT0
OUT1
SCL
GND
V
DD
SDA
A2
A1
A0
2-WIRE
SERIAL
INTERFACE/
CONTROL
MUTE
REFH0
REFL1
REFH1
MAX5109
DAC0
DAC1
A3
Simplified Diagram
MAX5109
Nonvolatile, Dual, 8-Bit DACs with 2-Wire Serial
Interface
2 _______________________________________________________________________________________
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.
(All voltages referenced to GND, unless otherwise noted.)
V
DD
, A0, A1, A2, A3, SCL, SDA, MUTE.................-0.3V to +6.0V
OUT0, OUT1, REFH0, REFH1
REFL0, REFL1 .......................................-0.3V to (V
DD
+ 0.3V)
Maximum Current into Any Pin .........................................±50mA
Power Dissipation (T
A
= +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(V
DD
= +2.7V to +5.25V, GND = 0, REFH_ = V
DD
, REFL_ = GND, R
LOAD
= 5kΩ, C
L
= 100pF, T
A
= -40°C to +85°C, unless otherwise
noted. Typical values are at V
DD
= +3.0V and T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
STATIC ACCURACY
Resolution 8 Bits
Code range 0A hex to F0 hex ±1
Integral Nonlinearity INL
Full code range ±2
LSB
Code range 0A hex to F0 hex
±0.5
Differential Nonlinearity (Note 2) DNL
Full code range ±1
LSB
Offset Error ZCE Code = 0A hex
±20
mV
Offset Temperature Coefficient Code = 0A hex
±20
µV/°C
Gain Error Code = F0 hex (Note 3) ±1 LSB
Gain-Error Temperature
Coefficient
Code = F0 hex
±0.002
LSB/°C
Power-Supply Rejection Ratio PSRR
Code = FF hex or 0A hex, V
REFH_
= 2.5V,
V
REFL_
= 0, f = DC
1
LSB/V
REFERENCE INPUT (REFH_, REFL_)
Input Voltage Range
V
REFH_
,
V
REFL_
V
REFH_
≥ V
REFL_
0
V
DD
V
Input Resistance
320 460
600 kΩ
Input-Resistance Temperature
Coefficient
±35
ppm/°C
Input Capacitance 10 pF
DAC OUTPUTS (OUT_)
Load Regulation Code = F0 hex, R
LOAD
≥ 5kΩ
±0.5
±1 LSB
Output Leakage DAC powered down, not muted
±10
µA
Amplifier Output Resistance 0.5V ≤ V
OUT_
≤ (V
DD
- 0.5V) 0.5 Ω
DIGITAL INPUTS (A_, MUTE)
2.7V ≤ V
DD
< 3.6V
0.7 x
V
DD
Input High Voltage (Note 4) V
IH
3.6V ≤ V
DD
≤ 5.25V
2.52
V
MAX5109
Nonvolatile, Dual, 8-Bit DACs with 2-Wire Serial
Interface
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +5.25V, GND = 0, REFH_ = V
DD
, REFL_ = GND, R
LOAD
= 5kΩ, C
L
= 100pF, T
A
= -40°C to +85°C, unless otherwise
noted. Typical values are at V
DD
= +3.0V and T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
2.7V ≤ V
DD
< 3.6V
0.3 x
V
DD
Input Low Voltage (Note 4) V
IL
3.6V ≤ V
DD
≤ 5.25V 1.1
V
Input Hysteresis V
HYS
0.05 x
V
DD
V
Input Leakage Current I
IN
V
IN
= 0 or V
DD
±1 µA
Input Capacitance C
IN
10 pF
DIGITAL OUTPUT (SDA)
I
SINK
= 3mA 0.4
Output Low Voltage V
OL
I
SINK
= 6mA 0.6
V
Tri-State Leakage I
L
±1 µA
Tri-State Output Capacitance C
OUT
15 pF
DYNAMIC PERFORMANCE
SCL to OUT_
Settling t
COS
(Note 5) 8 µs
Crosstalk V
REFH_
= 2.5V
P-P
at 10kHz (Note 6) 55 dB
V
REFH_
= 2.5V
P-P
at 1kHz 65
Multiplying Signal-to-Noise Plus
Distortion
SINAD
V
REFH_
= 2.5V
P-P
at 10kHz 52
dB
Multiplying Bandwidth V
REFH_
= 0.5V
P-P
, 3dB bandwidth 325 kHz
Reference Feedthrough V
REFH_
= 2.5V
P-P
at f = 10kHz (Note 7) 88 dB
Clock Feedthrough 2.5 nVs
Output Noise e
N
800
nV/√Hz
Power-Up Time t
SDR
From power-down state 4 µs
Power-Down Time t
SDN
1.5 µs
INTERFACE PORTS (SCL, SDA)
V
IL
0.3 x
V
DD
Input Voltage
V
IH
0.7 x
V
DD
V
Input Hysteresis V
HYS
0.05 x
V
DD
V
Input Current I
IN
±1 µA
Input Capacitance C
IN
5pF
POWER SUPPLIES
Power-Supply Voltage V
DD
2.70 5.25
V
Normal operation 0.4 0.7
Supply Current I
DD
I
LOAD
= 0, digital
inputs at GND or
V
DD
During nonvolatile
write
2
mA
Power-Down Current 25 µA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

MAX5109EEE+

Mfr. #:
Buy MAX5109EEE+
Manufacturer:
Maxim Integrated
Description:
Digital to Analog Converters - DAC 8-Bit 2Ch Precision DAC
Lifecycle:
New from this manufacturer.
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