The REF5025-HT is a low-noise, very low-drift, very high precision voltage references. This reference is capable of both sinking and sourcing, and is very robust with regard to line and load changes.
Excellent temperature drift and high accuracy are achieved using proprietary design techniques. These features, combined with very low noise, make the REF5025-HT suitable for use in high-precision data acquisition systems.
The device is offered in HKJ and HKQ packages, as well as Known-Good-Die (KGD) form, and is specified from –55°C to +210°C.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
REF5025-HT | CFP (HKJ)(8) | 6.9 mm × 5.65 mm |
CFP (HKQ) (8) | 6.9 mm × 5.65 mm | |
XCEPT (KGD) (0) | 2.04 mm × 1.676 mm |
Changes from E Revision (November 2013) to F Revision
Changes from D Revision (April 2012) to E Revision
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
DNC | 1, 8 | — | Do not connect |
GND | 4 | Power | System ground |
NC | 7 | — | No internal connection |
TEMP | 3 | O | Temperature monitoring pin provides a temperature-dependent voltage output |
TRIM/NR | 5 | I | Output adjustment and noise reduction input. Connecting 1 μF to this pin creates a low-pass filter at the bandgap and reduce output noise |
VIN | 2 | Power | Power supply voltage. Range from VOUT + 0.2 V up to 18 V. TI recommends a bypass capacitor with a value from 1 μF up to 10 μF |
VOUT | 6 | O | Very accurate, factory-trimmed voltage output. TI recommends a bypass capacitor with a value from 1 μF up to 50 μF with ESR between 1 and 1.5 Ω |
DIE THICKNESS | BACKSIDE FINISH | BACKSIDE POTENTIAL | BOND PAD METALLIZATION COMPOSITION | BOND PAD THICKNESS |
---|---|---|---|---|
15 mils | Silicon with backgrind | GND | Al-Cu (0.5%) | 598 nm |
DESCRIPTION | PAD NUMBER | X MIN | Y MIN | X MAX | Y MAX |
---|---|---|---|---|---|
NC | 1 | 35.45 | 46.55 | 111.45 | 122.55 |
NC | 2 | 496.75 | 56.55 | 572.75 | 132.55 |
VIN | 3 | 607.45 | 56.55 | 683.45 | 132.55 |
NC | 4 | 637.9 | 39.4 | 1013.9 | 115.4 |
TEMP | 5 | 1660.1 | 47.2 | 1736.1 | 123.2 |
GND | 6 | 1770.9 | 38.85 | 1847.05 | 115 |
GND | 7 | 1877.1 | 59.6 | 2016.8 | 135.6 |
TRIM/NR | 8 | 1904.65 | 1553.4 | 1980.65 | 1629.4 |
NC | 9 | 1782.15 | 1553.4 | 1858.15 | 1629.4 |
VOUT | 10 | 1080.2 | 1559.85 | 1219.9 | 1636 |
VOUT | 11 | 880.25 | 1543.55 | 956.25 | 1619.55 |
NC | 12 | 35.45 | 1553.45 | 111.45 | 1629.45 |
MIN | MAX | UNIT | ||
---|---|---|---|---|
Input voltage | VIN | 18 | V | |
Output short-circuit | 30 | mA | ||
Operating temperature | –55 | 210 | °C | |
Junction temperature, TJ | 210 | °C | ||
Storage temperature, Tstg | –65 | 210 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±3000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±1000 |
MIN | MAX | UNIT | ||
---|---|---|---|---|
VIN | 3.25 | 18 | V | |
IOUT | –7 | 7 | mA |
THERMAL METRIC(1) | REF5025-HT | UNIT | ||
---|---|---|---|---|
HJK, HKQ (CFP) | ||||
8 PINS | ||||
RθJC | Junction-to-case thermal resistance | To ceramic side of case | 5.7 | °C/W |
To top of case lid (metal side of case) | 13.7 |
PARAMETER | TEST CONDITIONS | TA = –55 to +125°C | TA = 210°C | UNIT | ||||||
---|---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | |||||
OUTPUT VOLTAGE (2.5 V) | ||||||||||
VOUT | Output voltage | 2.5 | 2.5 | V | ||||||
Initial accuracy(1) | VIN = 3.25 V | 0% | 0.9% | 0.14% | ||||||
NOISE | ||||||||||
Output voltage noise | f = 0.1 Hz to 10 Hz | 7.5 | μVPP | |||||||
OUTPUT VOLTAGE TEMPERATURE DRIFT | ||||||||||
dVOUT/dT | Output voltage temperature drift(2) | Calculated from –55°C to +210°C |
40 | ppm/°C | ||||||
LINE REGULATION | ||||||||||
dVOUT/dVIN | Line regulation | From VIN = 3.25 V to VIN = 18 V | 1 | 2.2 | 63 | 215 | ppm/V | |||
LOAD REGULATION | ||||||||||
dVOUT/dILOAD | Load regulation | –7 mA < ILOAD < 10 mA, VIN = 3.25 V | 20 | 50 | 20 | 75 | ppm/mA | |||
SHORT-CIRCUIT CURRENT | ||||||||||
ISC | Short-circuit current | VOUT = 0 V | 25 | 11 | mA | |||||
TEMP PIN | ||||||||||
Voltage output | At TA = 25°C | 575 | mV | |||||||
Temperature sensitivity(3) | 2.64 | mV/°C | ||||||||
TURN-ON SETTLING TIME | ||||||||||
Turn-on settling time | To 0.1% with CL = 1 μF | 200 | μs | |||||||
POWER SUPPLY | ||||||||||
VS | Supply voltage | 3.25 | 18 | 3.25 | 18 | V | ||||
Quiescent current | 0.8 | 1.2 | 1.5 | mA | ||||||
TEMPERATURE RANGE | ||||||||||
Specified range | –55°C to +210°C | |||||||||
Operating range | –55°C to +210°C |
CL = 1 μF |
IOUT = 1 mA | CL = 1 μF |
CL = 10 μF | IOUT = 1 mA |
CL = 1 μF |
CL = 10 μF |
IOUT = 10 mA | CL = 1 μF |
CL = 10 μF | IOUT = 10 mA |
CL = 10 μF |