MAX6325 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – 1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage References

19-1203; Rev 0; 4/97
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
_______________General Description
The MAX6325/MAX6341/MAX6350 are low-noise, preci-
sion voltage references with extremely low, 0.5ppm/°C
typical temperature coefficients and excellent, ±0.02%
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.
The MAX6325 is set for a 2.500V output, the MAX6341
is set for a 4.096V output, and the MAX6350 is set for a
5.000V output. All three provide for the option of exter-
nal trimming and noise reduction.
____________________________Features
o Ultra-Low, 1ppm/°C Max Tempco
o Very Low, 1.5µVp-p Noise (0.1Hz to 10Hz)
(MAX6325)
o ±0.02% Initial Accuracy (MAX6350)
o ±15mA Output Source and Sink Current
o Low, 18mW Power Consumption (MAX6325)
o Industry-Standard Pinout
o Optional Noise Reduction and Voltage Trim
o Excellent Transient Response
o 8-Pin SO Package Available
o Low, 30ppm/1000h Long-Term Stability
o Stable for All Capacitive Loads
________________________Applications
High-Resolution Analog-to-Digital
and Digital-to-Analog Converters
High-Accuracy Reference Standard
High-Accuracy Industrial and Process Control
Digital Voltmeters
ATE Equipment
Precision Current Sources
______________Ordering Information
PART
TEMP. RANGE
PIN-
PACKAGE
MAX
TEMPCO
(ppm/°C)
MAX6325CPA
0°C to +70°C 8 Plastic DIP
1.0
MAX6325CSA
0°C to +70°C 8 SO
1.0
MAX6325EPA -40°C to +85°C 8 Plastic DIP 1.5
MAX6325ESA -40°C to +85°C 8 SO
1.5
MAX6325MJA -55°C to +125°C 8 CERDIP
2.5
Ordering Information continued at end of data sheet.
__________Typical Operating Circuit __________________Pin Configuration
8V TO 36V INPUT
TOP VIEW
2.2µF ^*
IN
OUT
MAX6325
MAX6341
NR MAX6350 TRIM
GND
*OPTIONAL
REFERENCE OUT
2.2µF ^*
I.C. 1
IN 2
NR 3
GND 4
MAX6325
MAX6341
MAX6350
8 I.C.
7 I.C.
6 OUT
5 TRIM
DIP/SO
I.C. = INTERNALLY CONNECTED; DO NOT USE
________________________________________________________________ Maxim Integrated Products 1
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