The XBG_1V23LC_V01 is an embedded ultra-low power bandgap reference block which operates with 3.3V power supply. In Standby Mode (PDn = 'L') the power consumption is minimal, VBG will be pulled to ground level. The bandgap IP will be activated with the rising edge of signal PDn (PDn = 'H') and generates an output voltage of 1.23V on pin VBG. The output voltage can be trimmed via signals TR_BG[3:0] in 16 steps. The default combination is 4'b0000.
| Name | Description | Type | Direction | Vmin | Vmax |
|---|---|---|---|---|---|
| VBG | Bandgap reference voltage output | signal | output | -0.5 | VDD33A + 0.3 |
| PDn | Power-down input (active low) | signal | input | -0.5 | VDD33A + 0.3 |
| TR_BG[3:0] | Output voltage trim setting | digital | input | -0.5 | VDD33A + 0.3 |
| VDD33A | Positive power supply | power | inout | 3.0 | 3.6 |
| VSSA | Ground | ground | inout | 0 | 0 |
| VBBA | Substrate | substrate | inout | 0 | 0 |
| Name | Typical | Minimum | Maximum | Units |
|---|---|---|---|---|
| VDD | 3.3 | V | ||
| Ground | 0 | V | ||
| Substrate | 0 | V | ||
| Enable | 3.3 | V | ||
| Trim | 0000 | 1000 | 0111 | |
| RLoad | 100 | MΩ | ||
| CLoad | 1 | pF | ||
| Temp | 27 | -40 | 125 | °C |
| Sigma | 3 | |||
| Corner | tm | ws | wp | |
| VDDRISE | 100 | ns |
| Parameter | Pin | Typical | Minimum | Maximum | Units | Conditions |
|---|---|---|---|---|---|---|
| Line Regulation (Voltage Coefficient) | VBG | -74.19 | -509.9 | 89.58 | ppm/V | Conditions |
| Load Regulation | VBG | 0.002086 | 0.0008732 | 0.004644 | mV/µA | Conditions |
| Temperature Coefficient | VBG | 140.9 | -140.9 | 140.9 | ppm/°C | Conditions |
| Input Low Voltage | TR_BG[3:0] | 45.83 | %VDD | Conditions | ||
| Input High Voltage | TR_BG[3:0] | 51.69 | %VDD | Conditions | ||
| Input Leakage Current | TR_BG[3:0] | 1.32e-13 | µA | Conditions | ||
| PSRR positive at 100kHz | VBG | -69.36 | -60.94 | dB | Conditions | |
| PSRR positive at 1MHz | VBG | -50.69 | -47.6 | dB | Conditions | |
| PSRR negative at 100kHz | VBG | -10.57 | -10.37 | dB | Conditions | |
| Power | VDD33A | 10.16 | 14.07 | µW | Conditions | |
| IDD33A | VDD33A | 2.877 | 3.258 | µA | Conditions | |
| IDD33A (standby) | VDD33A | 0.5214 | 0.6313 | µA | Conditions | |
| VBG (maximum trim) | VBG | 1.162 | 1.155 | 1.171 | V | Conditions |
| VBG (trim setting 4, corners) | VBG | 1.193 | 1.183 | 1.21 | V | Conditions |
| VBG (trim setting 2) | VBG | 1.205 | 1.205 | 1.205 | V | Conditions |
| VBG (trim setting 1) | VBG | 1.215 | 1.215 | 1.215 | V | Conditions |
| VBG (nominal trim) | VBG | 1.232 | 1.225 | 1.238 | V | Conditions |
| VBG (trim setting -1) | VBG | 1.235 | 1.235 | 1.235 | V | Conditions |
| VBG (trim setting -3) | VBG | 1.256 | 1.256 | 1.256 | V | Conditions |
| VBG (trim setting -6) | VBG | 1.286 | 1.286 | 1.286 | V | Conditions |
| VBG (minimum trim) | VBG | 1.312 | 1.305 | 1.316 | V | Conditions |
| TSTARTVDD | VBG | 0.8417 | 0.5932 | 1.127 | µs | Conditions |
| Startup | VBG | 174.1 | 485.8 | µs | Conditions | |
| Startup (test) | VBG | 1.522 | V | Conditions | ||
| VNOISE | VBG | 78.54 | 70.94 | 86.48 | µV-rms | Conditions |
| Parameter | Typical | Minimum | Maximum | Units |
|---|---|---|---|---|
| device_area | 49370 | µm² | ||
| area | 52364.76 | µm² | ||
| width | 285.6 | µm | ||
| height | 183.35 | µm | ||
| DRC_errors | 0 | |||
| LVS_errors | 0 |
Figure 1
Plot 1: Load Regulation
Plot 2: Voltage coefficient of VBG vs. VDD33A
Plot 3: Bandgap output VBG vs. Temperature
Plot 4: Bandgap output VBG vs. TRIM
Plot 5: Temperature coefficient of VBG (ppm) vs. temperature (°C)
Plot 6: Startup (plot)
Plot 7: Bandgap output VBG vs. VDD33A
EFX0002
N/A
Syed Arsalan Jawed
Hard IP
350nm
Community
X-FAB
EFXH035A
Bandgap
Contact Designer
layout
1
2.0
Apr 27, 2018