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Analog Devices Inc. ADM660ARUZ-REEL7
- Part No.:
- ADM660ARUZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADM660ARUZ-REEL7.pdf
- Description:
- IC REG CHARGE PUMP INV 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,275
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Product details
Overview
ADM660ARUZ-REEL7 from Analog Devices is a CMOS switched-capacitor voltage inverter/doubler IC that generates –VIN or 2×VIN from +1.5 V to +7 V input, delivers up to 100 mA output current, features selectable 25 kHz/120 kHz charge-pump frequency, and operates across –40°C to +85°C for portable instrumentation and op amp dual-rail power supplies.
For engineers reviewing the ADM660ARUZ-REEL7 datasheet, ADM660ARUZ-REEL7 pinout, ADM660ARUZ-REEL7 application, or ADM660ARUZ-REEL7 equivalent, key selection criteria include inverting vs. doubling mode support, FC-controlled frequency selection, LV pin configuration for low-voltage operation, OSC pin flexibility for external clocking, and RU-16 TSSOP package thermal performance (θJA = 158°C/W).
Technical Context
The ADM660ARUZ-REEL7 implements a two-phase switched-capacitor topology with internal oscillator and analog switches to achieve voltage inversion or doubling. Its FC pin selects between 25 kHz (10 µF caps) and 120 kHz (2.2 µF caps) charge-pump operation, while the OSC pin accepts external capacitors or CMOS clocks to override internal frequency-enabling precise ripple/output resistance trade-offs.
Unlike the ADM8660, the ADM660ARUZ-REEL7 supports both inverting and doubling modes, requires LV tied to OUT in doubler configuration, and lacks shutdown functionality. Its 16-lead TSSOP (RU-16) package provides improved thermal dissipation (500 mW max, derated above +50°C) versus 8-lead variants, supporting higher continuous load currents in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +1.5 V to +7 V - supports single-cell Li-ion, 3.3 V, and 5 V systems without external regulators |
| Output Current | 100 mA - sufficient for biasing op amps, ADCs, and small analog signal chains |
| Charge-Pump Frequency | 25 kHz or 120 kHz (FC-selectable) - determines external capacitor size (10 µF or 2.2 µF) and output impedance |
| Quiescent Current | 0.6 mA typical - enables low-power operation in battery-powered handheld instruments |
| Output Resistance | 9 Ω to 15 Ω at 100 mA - defines voltage drop under load; lower than MAX660 (12–20 Ω) |
| Power Efficiency | ≥90% at 1 mA–50 mA loads - maintains high conversion efficiency across wide output current range |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications |
Pinout & Package
ADM660ARUZ-REEL7 is housed in a 16-lead Thin Shrink Small Outline Package (TSSOP, RU-16), measuring 5.00 mm × 4.40 mm × 1.20 mm, with 0.65 mm lead pitch and θJA = 158°C/W. It includes four NC (no-connect) pins to accommodate pin-compatible routing with legacy 8-lead footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 10, 11, 12, 13, 14, 15, 16 | No Connect (NC) | Internally unconnected; must be left floating or grounded per layout best practices |
| 5 | Oscillator Control (OSC) | Accepts external capacitor (slows frequency) or CMOS clock (sets fCP = fCLK/2); overrides FC pin when driven |
| 6 | Positive Power Supply (V+) | Main input supply rail; connects to +1.5 V to +7 V source; powers internal circuitry and charge pump |
| 7 | Positive Charge-Pump Terminal (CAP+) | Connects to positive plate of C1; forms half of flying capacitor network |
| 8 | Ground (GND) | Reference node for input supply and internal logic; ties to system ground plane |
| 9 | Negative Charge-Pump Terminal (CAP–) | Connects to negative plate of C1; completes flying capacitor path during switching phases |
| 11 | Frequency Control (FC) | Selects internal oscillator: open = 25 kHz, V+ = 120 kHz; sets capacitor sizing and ripple profile |
| 12 | Low-Voltage Mode (LV) | In inverter mode: tie to GND if VIN < 3.5 V; in doubler mode: tie to OUT to enable 2×VIN output |
| 13 | Output (OUT) | In inverter mode: delivers –VIN; in doubler mode: connects to GND as reference for V+ output |
Key Features
| Feature | Design Value |
|---|---|
| Voltage Inversion & Doubling | Single device supports both –VIN and 2×VIN outputs via pin-strapping (LV/OUT), eliminating need for separate inverter/doubler ICs |
| Selectable Charge-Pump Frequency | FC pin enables 25 kHz (low IQ, larger caps) or 120 kHz (lower output impedance, smaller caps) - direct trade-off between BOM cost and performance |
| External Oscillator Interface | OSC pin accepts external clock (CMOS-level, 100 mV swing) or capacitor - allows precise frequency control beyond fixed 25/120 kHz options |
| Low ESR Capacitor Optimization | Specified for ≤0.2 Ω ESR electrolytics; reduces output ripple and source resistance - critical for noise-sensitive analog rails |
| Industrial Temperature Range | –40°C to +85°C operation validated across full electrical specs - suitable for automotive infotainment and industrial data acquisition |
Applications
| Handheld Instrumentation | Portable Computing |
|---|---|
Use Scenario: Battery-powered multimeters and oscilloscope probes requiring dual ±3.3 V or ±5 V rails from a single 3.7 V Li-ion cell. IC Role / Device Role / Timing Role: ADM660ARUZ-REEL7 acts as a compact, low-noise negative rail generator, replacing discrete charge-pump circuits or inefficient inductive DC/DC converters. Use Value: Enables true bipolar analog front-end operation with <15 Ω output resistance and <1% voltage error at 50 mA, minimizing calibration drift. | Use Scenario: USB-C powered docking stations needing isolated –3.3 V for level-shifting I²C/SPI buses alongside main 3.3 V domain. IC Role / Device Role / Timing Role: ADM660ARUZ-REEL7 serves as a dedicated inverter for interface logic, decoupled from main system power management. Use Value: Delivers stable –3.3 V at 30 mA with 92% efficiency and <50 mVpp ripple using 2.2 µF low-ESR ceramics - avoids cross-talk into sensitive digital signals. |
| Op Amp Dual-Rail Supplies | Remote Data Acquisition |
Use Scenario: Precision sensor signal conditioning circuits (e.g., strain gauge bridges) using rail-to-rail op amps requiring symmetric ±2.5 V supplies from a 5 V microcontroller rail. IC Role / Device Role / Timing Role: ADM660ARUZ-REEL7 generates the negative rail while the MCU's 5 V rail supplies the positive rail - no additional regulators needed. Use Value: Achieves <0.3 V dropout at 30 mA load and 94% efficiency, preserving headroom for low-noise amplification without thermal derating. | Use Scenario: Wireless sensor nodes deployed in field environments (–25°C to +70°C) needing –5 V for analog multiplexers and ADC reference buffers. IC Role / Device Role / Timing Role: ADM660ARUZ-REEL7 functions as the sole negative voltage source, operating reliably across temperature with minimal external components. Use Value: Maintains ≥88.5% efficiency from –40°C to +85°C and supports 100 mA peak loads during burst transmission - extends battery life by reducing quiescent draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX660CPA+ | 8-lead DIP package; 12–20 Ω output resistance; no OSC pin; 600 µA IQ | Lacks external clocking and TSSOP thermal performance; limited to lower-current, less space-constrained designs | Choose for legacy through-hole assembly or where OSC flexibility is unnecessary |
| ICL7660CBAZ | 8-lead SOIC; 15–25 Ω output resistance; no FC/OSC pins; 170 µA IQ; only inverts | Lower IQ but no frequency control or doubling mode; not suitable for 2×VIN or precision ripple requirements | Choose only for ultra-low-power inverter-only use cases with relaxed output regulation |
Compared with MAX660CPA+ and ICL7660CBAZ, the ADM660ARUZ-REEL7 offers superior output current capability (100 mA vs. 50–60 mA), lower output resistance (9–15 Ω), dual-mode operation, and TSSOP thermal advantages - making it optimal for modern compact, high-performance analog power rails.
Availability
ADM660ARUZ-REEL7 is available at Aetrix Electronics and suitable for handheld instrumentation, portable computing, and op amp dual-rail power supplies requiring stable component supply, RoHS-compliant packaging, and industrial temperature assurance.
Supply support for ADM660ARUZ-REEL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and consumer markets since 1965.
The ADM660 product line delivers integrated switched-capacitor voltage conversion for space- and cost-constrained analog systems, emphasizing low ESR capacitor compatibility, flexible frequency control, and seamless upgrade paths from legacy charge-pump ICs.
FAQ
What are the valid configurations supported by the ADM660ARUZ-REEL7?
The ADM660ARUZ-REEL7 supports two primary configurations: voltage inversion (VOUT = –VIN) and voltage doubling (VOUT = 2×VIN). In inverter mode, LV is tied to GND for VIN < 3.5 V or left open for VIN ≥ 3.5 V; in doubler mode, LV must be connected to OUT and GND serves as the input reference. The ADM660ARUZ-REEL7 does not support shutdown functionality - that is exclusive to the ADM8660 variant.
How does the FC pin affect external capacitor selection for the ADM660ARUZ-REEL7?
The FC pin directly determines the required external capacitor values for the ADM660ARUZ-REEL7: when FC is open, the internal oscillator runs at 25 kHz and 10 µF low-ESR electrolytic capacitors (C1, C2) are recommended; when FC is tied to V+, the oscillator runs at 120 kHz and 2.2 µF capacitors suffice. Using mismatched values degrades efficiency and increases output ripple - the ADM660ARUZ-REEL7 datasheet specifies ESR < 0.2 Ω for both cases.
Can the ADM660ARUZ-REEL7 be used with ceramic capacitors instead of electrolytics?
Yes, the ADM660ARUZ-REEL7 can use ceramic capacitors provided they meet the low-ESR requirement (<0.2 Ω) and appropriate capacitance values (2.2 µF or 10 µF depending on FC setting). However, ceramic capacitors exhibit voltage coefficient effects - their effective capacitance drops significantly at rated voltage. For stable performance, X7R or X5R dielectrics rated ≥2× the input voltage are recommended, and total effective capacitance must remain within ±20% of nominal across operating conditions.
What is the maximum continuous output current the ADM660ARUZ-REEL7 can deliver in its RU-16 package?
The ADM660ARUZ-REEL7 supports up to 100 mA continuous output current in its RU-16 TSSOP package, validated across the full –40°C to +85°C temperature range. Thermal limits require derating above +50°C at 6 mW/°C; at +85°C ambient, maximum power dissipation is 290 mW. With typical 90% efficiency at 100 mA, this corresponds to ~300 mW input power - well within the 500 mW absolute maximum rating for the RU-16 package.
Is the ADM660ARUZ-REEL7 pin-compatible with the MAX660 in the RU-16 footprint?
No, the ADM660ARUZ-REEL7 is not pin-compatible with the MAX660 in the RU-16 footprint. The MAX660 is only offered in 8-lead packages (PDIP, SOIC), while the RU-16 variant of the ADM660ARUZ-REEL7 contains 16 leads with 11 NC pins and repositioned functional pins (e.g., OSC at Pin 5, FC at Pin 11). Migration from MAX660 requires PCB redesign to accommodate the RU-16 layout and updated routing for FC, OSC, and LV signals.
ADM660ARUZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Ratiometric
- Output Configuration:
- Positive or Negative
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.5V
- Voltage - Input (Max):
- 7V
- Voltage - Output (Min/Fixed):
- -Vin, 2Vin
- Voltage - Output (Max):
- -
- Current - Output:
- 100mA
- Frequency - Switching:
- 25kHz, 120kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
ADM660ARUZ-REEL7 FAQ
1.How can I place an order for ADM660ARUZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM660ARUZ-REEL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADM660ARUZ-REEL7 reliable?
The price and inventory of ADM660ARUZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM660ARUZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADM660ARUZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM660ARUZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM660ARUZ-REEL7?
ADM660ARUZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM660ARUZ-REEL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADM660ARUZ-REEL7?
For technical support, including ADM660ARUZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM660ARUZ-REEL7 requirements.
6.How does Aetrix verify that ADM660ARUZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADM660ARUZ-REEL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADM660ARUZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADM660ARUZ-REEL7?
All ADM660ARUZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM660ARUZ-REEL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADM660ARUZ-REEL7 part is unused and in its original packaging.
Return procedure for ADM660ARUZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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