MAX6325/MAX6341/MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
General Description
____________________________Features
The MAX6325/MAX6341/MAX6350 are low-noise, preci-
sion voltage references with extremely low, 0.5ppm/°C
typical temperature coefficients and excellent, 0.02ꢀ
initial accuracy. These devices feature buried-zener
technology for lowest noise performance. Load-regula-
tion specifications are guaranteed for source and sink
currents up to 15mA. Excellent line and load regulation
and low output impedance at high frequencies make
them ideal for high-resolution data-conversion systems
up to 16 bits.
ꢀ Ultra Low, 1ppm/°C Max Tempco
ꢀ Very Low, 1.5µVp-p Noise (0.1Hz to 10Hz)
(MAX6325)
ꢀ
ꢀ
0.02% Initial Accuracy (MAX6350)
15mA Output Source and Sink Current
ꢀ Low, 18mW Power Consumption (MAX6325)
ꢀ Industry-Standard Pinout
ꢀ Optional Noise Reduction and Voltage Trim
ꢀ Excellent Transient Response
The MAX6325 is set for a 2.5V output, the MAX6341 is
set for a 4.096V output, and the MAX6350 is set for a
5V output. All three provide for the option of external
trimming and noise reduction.
ꢀ 8-Pin SO Package Available
ꢀ Low, 30ppm/1000hr Long-Term Stability
ꢀ Stable for All Capacitive Loads
19-1203; Rev 1; 1/01
Ordering Information
________________________Applications
High-Resolution Analog-to-Digital
and Digital-to-Analog Converters
MAX
PIN-
TEMPCO
PART
TEMP. RANGE
PACKAGE
(ppm/°C)
High-Accuracy Reference Standard
High-Accuracy Industrial and Process Control
Digital Voltmeters
MAX6325CPA
MAX6325CSA
MAX6325EPA
MAX6325ESA
MAX6325MJA
0°C to +70°C
0°C to +70°C
8 Plastic DIP
8 SO
1.0
1.0
1.5
1.5
2.5
-40°C to +85°C
-40°C to +85°C
8 Plastic DIP
8 SO
ATE Equipment
-55°C to +125°C 8 CERDIP
Precision Current Sources
Ordering Information continued at end of data sheet.
Typical Operating Circuit
Pin Configuration
TOP VIEW
8V TO 36V INPUT
1
2
3
4
8
7
6
5
I.C.
I.C.
IN
IN
REFERENCE OUT
OUT
I.C.
MAX6325
MAX6341
MAX6350
MAX6325
MAX6341
MAX6350
*
OUT
TRIM
NR
2.2µF
NR
TRIM
GND
*
2.2µF
GND
DIP/SO
I.C. = INTERNALLY CONNECTED; DO NOT USE
*OPTIONAL
For pricing, delivery, and ordering information, please contact Maxim Direct
19-1203; Rev 1; 1/01
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.