Analog Devices ADR291, ADR292 Datasheet

Low Noise Micropower
a
FEATURES Voltage Options 2.048 V, 2.500 V and 4.096 V
2.7 V to 15 V Supply Range Supply Current 12 A max Initial Accuracy 2 mV max Temperature Coefficient 8 ppm/C max Low-Noise 6 V p-p (0.1 Hz–10 Hz) High Output Current 5 mA min Temperature Range 40C to ⴙ125ⴗC REF02/REF19x Pinout
APPLICATIONS Portable Instrumentation Precision Reference for 3 V and 5 V Systems A/D and D/A Converter Reference Solar Powered Applications Loop-Current Powered Instruments
GENERAL DESCRIPTION
The ADR290, ADR291 and ADR292 are low noise, micro­power precision voltage references that use an XFET circuit. The new XFET
architecture offers significant perfor­mance improvements over traditional bandgap and Zener-based references. Improvements include: one quarter the voltage noise output of bandgap references operating at the same current, very low and ultralinear temperature drift, low thermal hyster­esis and excellent long-term stability.
The ADR29x family are series voltage references providing stable and accurate output voltages from supplies as low as 2.7 V. Out­put voltage options are 2.048 V, 2.5 V and 4.096 V for the ADR290, ADR291 and ADR292 respectively. Quiescent current
is only 12 µA, making these devices ideal for battery powered in-
strumentation. Three electrical grades are available offering initial
output accuracies of ±2 mV, ±3 mV and ±6 mV max for the ADR290 and ADR291 and ±3 mV, ±4 mV and ±6 mV max for
the ADR292. Temperature coefficients for the three grades are
8 ppm/°C, 15 ppm/°C and 25 ppm/°C max, respectively. Line
regulation and load regulation are typically 30 ppm/V and 30 ppm/mA, maintaining the reference’s overall high perfor­mance. For a device with 5.0 V output, refer to the ADR293 data sheet.
The ADR290, ADR291 and ADR292 references are specified
over the extended industrial temperature range of –40°C to +125°C. Devices are available in the 8-lead SOIC, 8-lead TSSOP
and the TO-92 package.
reference
Precision Voltage References
ADR290/ADR291/ADR292
PIN CONFIGURATIONS
8-Lead Narrow Body SO (R Suffix)
PIN 3
V
OUT
8 7
V
6
OUT
5
8 7
V
6
OUT
5
1
ADR29x
V
2
TOP VIEW
(Not to Scale)
3
GND
4
8-Lead TSSOP (RU Suffix)
1
ADR29x
V
2
TOP VIEW
(Not to Scale)
3
GND
4
3-Pin TO-92 (T9 Suffix)
PIN 1
PIN 2
V
GND
IN
BOTTOM VIEW
Part Number Nominal Output Voltage (V)
ADR290 2.048 ADR291 2.500 ADR292 4.096
XFET is a trademark of Analog Devices, Inc.
REV. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 2000
ADR290/ADR291/ADR292
ADR290–SPECIFICATIONS
Electrical Specifications
(VS = 2.7 V, TA = ⴙ25ⴗC unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Units
INITIAL ACCURACY
“E” Grade V
O
I
= 0 mA 2.046 2.048 2.050 V
OUT
“F” Grade 2.045 2.051 V “G” Grade 2.042 2.054 V
LINE REGULATION
“E/F” Grades ∆V
O
/V
IN
2.7 V to 15 V, I
= 0 mA 30 100 ppm/V
OUT
“G” Grade 40 125 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
O
/I
LOAD
VS = 5.0 V, 0 mA to 5 mA 30 100 ppm/mA
“G” Grade 40 125 ppm/mA
LONG TERM STABILITY ∆V
NOISE VOLTAGE e
WIDEBAND NOISE DENSITY e
Electrical Specifications
N
n
(V
= 2.7 V, T
S
O
1000 hrs @ +25°C, V
= +15 V 0.2 ppm
S
0.1 Hz to 10 Hz 6 µV p-p at 1 kHz 420 nV/√Hz
= 25C TA 85C unless otherwise noted)
A
Parameter Symbol Conditions Min Typ Max Units
TEMPERATURE COEFFICIENT
“E” Grade TCV
/°CI
O
= 0 mA 3 8 ppm/°C
OUT
“F” Grade 6 15 ppm/°C “G” Grade 10 25 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/V
IN
2.7 V to 15 V, I
= 0 mA 35 125 ppm/V
OUT
“G” Grade 50 150 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
O
/I
LOAD
VS = 5.0 V, 0 mA to 5 mA 20 125 ppm/mA
“G” Grade 30 150 ppm/mA
Electrical Specifications
(VS = 2.7 V, T
= ⴚ40ⴗC ≤ TA 125C unless otherwise noted)
A
Parameter Symbol Conditions Min Typ Max Units
TEMPERATURE COEFFICIENT
“E” Grade TCV
/°CI
O
= 0 mA 3 10 ppm/°C
OUT
“F” Grade 5 20 ppm/°C “G” Grade 10 30 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/V
IN
2.7 V to 15 V, I
= 0 mA 40 200 ppm/V
OUT
“G” Grade 70 250 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
O
/I
LOAD
VS = 5.0 V, 0 mA to 5 mA 20 200 ppm/mA
“G” Grade 30 300 ppm/mA
SUPPLY CURRENT @ +25°C812µA
12 15 µA
THERMAL HYSTERESIS TO-92, SO-8, TSSOP-8 50 ppm
NOTE Specifications subject to change without notice.
–2–
REV. A
ADR291–SPECIFICATIONS
ADR290/ADR291/ADR292
Electrical Specifications
(VS = 3.0 V, TA = ⴙ25ⴗC unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Units
INITIAL ACCURACY
“E” Grade V
O
I
= 0 mA 2.498 2.500 2.502 V
OUT
“F” Grade 2.497 2.503 V “G” Grade 2.494 2.506 V
LINE REGULATION
“E/F” Grades ∆V
O
/V
IN
3.0 V to 15 V, I
= 0 mA 30 100 ppm/V
OUT
“G” Grade 40 125 ppm/V
LOAD REGULATION
“E/F“ Grades ∆V
O
/I
LOAD
VS = 5.0 V, 0 mA to 5 mA 30 100 ppm/mA
“G“ Grade 40 125 ppm/mA
LONG TERM STABILITY ∆V
NOISE VOLTAGE e
WIDEBAND NOISE DENSITY e
Electrical Specifications
N
n
(V
= 3.0 V, T
S
O
1000 hrs @ +25°C, V
= +15 V 0.2 ppm
S
0.1 Hz to 10 Hz 8 µV p-p at 1 kHz 480 nV/√Hz
= 25C TA 85C unless otherwise noted)
A
Parameter Symbol Conditions Min Typ Max Units
TEMPERATURE COEFFICIENT
“E” Grade TCV
/°CI
O
= 0 mA 3 8 ppm/°C
OUT
“F” Grade 5 15 ppm/°C “G” Grade 10 25 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/V
IN
3.0 V to 15 V, I
= 0 mA 35 125 ppm/V
OUT
“G” Grade 50 150 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
O
/I
LOAD
VS = 5.0 V, 0 mA to 5 mA 20 125 ppm/mA
“G” Grade 30 150 ppm/mA
Electrical Specifications
(VS = 3.0 V, T
= ⴚ40ⴗC ≤ TA 125C unless otherwise noted)
A
Parameter Symbol Conditions Min Typ Max Units
TEMPERATURE COEFFICIENT
“E” Grade TCV
/°CI
O
= 0 mA 3 10 ppm/°C
OUT
“F” Grade 5 20 ppm/°C “G” Grade 10 30 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/V
IN
3.0 V to 15 V, I
= 0 mA 40 200 ppm/V
OUT
“G” Grade 70 250 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
O
/I
LOAD
VS = 5.0 V, 0 mA to 5 mA 20 200 ppm/mA
“G” Grade 30 300 ppm/mA
SUPPLY CURRENT @ +25°C912µA
12 15 µA
THERMAL HYSTERESIS TO-92, SO-8, TSSOP-8 50 ppm
NOTE Specifications subject to change without notice.
REV. A
–3–
ADR290/ADR291/ADR292
ADR292–SPECIFICATIONS
Electrical Specifications
(V
= 5 V, TA = ⴙ25ⴗC unless otherwise noted)
S
Parameter Symbol Conditions Min Typ Max Units
INITIAL ACCURACY
“E” Grade V
O
I
= 0 mA 4.093 4.096 4.099 V
OUT
“F” Grade 4.092 4.100 V “G” Grade 4.090 4.102 V
LINE REGULATION
“E/F” Grades ∆V
O
/V
IN
4.5 V to 15 V, I
= 0 mA 30 100 ppm/V
OUT
“G” Grade 40 125 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
O
/I
LOAD
VS = 5.0 V, 0 mA to 5 mA 30 100 ppm/mA
“G” Grade 40 125 ppm/mA
LONG TERM STABILITY ∆V
NOISE VOLTAGE e
WIDEBAND NOISE DENSITY e
Electrical Specifications
(VS = 5 V, T
O
N
N
= ⴚ25ⴗC ≤ TA 85C unless otherwise noted)
A
1000 hrs @ +25°C, V
= +15 V 0.2 ppm
S
0.1 Hz to 10 Hz 12 µV p-p at 1 kHz 640 nV/√Hz
Parameter Symbol Conditions Min Typ Max Units
TEMPERATURE COEFFICIENT
“E” Grade TCV
/°CI
O
= 0 mA 3 8 ppm/°C
OUT
“F” Grade 5 15 ppm/°C “G” Grade 10 25 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/V
IN
4.5 V to 15 V, I
= 0 mA 35 125 ppm/V
OUT
“G” Grade 50 150 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
O
/I
LOAD
VS = 5.0 V, 0 mA to 5 mA 20 125 ppm/mA
“G” Grade 30 150 ppm/mA
Electrical Specifications
(VS = 5 V, T
= ⴚ40ⴗC ≤ TA 125C unless otherwise noted)
A
Parameter Symbol Conditions Min Typ Max Units
TEMPERATURE COEFFICIENT
“E” Grade TCV
/°CI
O
= 0 mA 3 10 ppm/°C
OUT
“F” Grade 5 20 ppm/°C “G” Grade 10 30 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/V
IN
4.5 V to 15 V, I
= 0 mA 40 200 ppm/V
OUT
“G” Grade 70 250 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
O
/I
LOAD
VS = 5.0 V, 0 mA to 5 mA 20 200 ppm/mA
“G” Grade 30 300 ppm/mA
SUPPLY CURRENT @ +25°C1015µA
12 18 µA
THERMAL HYSTERESIS TO-92, SO-8, TSSOP-8 50 ppm
NOTE Specifications subject to change without notice.
–4–
REV. A
ADR290/ADR291/ADR292
WAFER TEST LIMITS
(@ I
= 0 mA, TA = 25C unless otherwise noted)
LOAD
Parameter Symbol Conditions Limits Units
INITIAL ACCURACY
ADR290 V ADR291 V ADR292 V
O
O
O
LINE REGULATION ∆VO/V LOAD REGULATION ∆VO/I
IN
LOAD
VO + 1 V < VIN < 15 V, I
= 0 mA 125 ppm/V
OUT
0 to 5 mA, VIN = VO + 1 V 125 ppm/mA
2.042/2.054 V
2.494/2.506 V
4.090/4.102 V
SUPPLY CURRENT ADR290, ADR291, No Load 12 µA
ADR292, No Load 15 µA
NOTES Electrical tests are performed as wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed for standard product dice. Consult factory to negotiate specifications based on dice lot qualification through sample lot assembly and testing. Specifications subject to change without notice.
DICE CHARACTERISTICS
Die Size 0.074 0.052 inch, 3848 sq. mils
(1.88 1.32 mm, 2.48 sq. mm)
Transistor Count: 52
1. V
IN
2. GND
3. V
4. V
OUT(FORCE)
OUT(SENSE)
For additional DICE ordering information, refer to databook.
REV. A –5–
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