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Analog Devices Inc. ADM660ARU-REEL7
- Part No.:
- ADM660ARU-REEL7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADM660ARU-REEL7.pdf
- Description:
- IC MULTI CONFIG ADJ .1A 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
ADM660ARU-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 with only two external capacitors - used in portable op amp power supplies and handheld instrumentation.
For engineers reviewing the ADM660ARU-REEL7 datasheet, ADM660ARU-REEL7 pinout, ADM660ARU-REEL7 application, or ADM660ARU-REEL7 equivalent, key selection factors include inverting/doubling mode support, low-quiescent-current operation (0.6 mA typ), TSSOP-16 package compatibility, and pin compatibility with legacy MAX660/ICL7660 designs.
Technical Context
The ADM660ARU-REEL7 implements a dual-mode switched-capacitor topology: it supports both voltage inversion (VOUT = –VIN) and voltage doubling (VOUT = 2×VIN), with LV pin configuration determining mode (LV = GND for inverting, LV = OUT for doubling). Its internal oscillator drives complementary switch pairs (S1–S4) to transfer charge between external C1 and C2 capacitors.
Frequency control is achieved via FC pin (25 kHz at open, 120 kHz at V+), and optional external clock or capacitor on OSC pin enables fine-tuned oscillator adjustment. Output resistance is 9–15 Ω at 100 mA load, and efficiency exceeds 90% at 1 kΩ load in inverting mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +1.5 V to +7 V - supports single-supply systems requiring negative rails or boosted voltages. |
| Output Current | 100 mA - sufficient to power dual op amps or small analog signal chains without external buffering. |
| Charge-Pump Frequency | 25 kHz or 120 kHz - selects between 10 µF (low-frequency, low-IQ) or 2.2 µF (compact, lower impedance) capacitor sizing. |
| Quiescent Current | 0.6 mA typical - enables battery-powered operation with minimal standby drain. |
| Output Resistance | 9–15 Ω at 100 mA - determines voltage droop under load; critical for stable biasing of precision analog stages. |
| Power Efficiency | ≥90% at 1 kΩ load - minimizes thermal rise and extends battery life in portable applications. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and extended-temperature embedded environments. |
Pinout & Package
ADM660ARU-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 RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 | No Connect / Function Pin | Pins 1–4, 6–10, 12–16 are NC; Pin 5 = FC (frequency select); Pin 11 = OSC (external oscillator control); Pin 13 = V+ (input supply); Pin 14 = CAP+ (positive pump node); Pin 15 = GND; Pin 16 = CAP– (negative pump node). |
Key Features
| Feature | Design Value |
|---|---|
| Dual-mode conversion | Supports both inverting (–VIN) and doubling (2×VIN) topologies - eliminates need for separate parts in multi-rail designs. |
| Selectably optimized frequency | 25 kHz/120 kHz FC pin control - enables trade-off between capacitor size, output impedance, and quiescent current. |
| Low external component count | Only two external capacitors required - reduces BOM cost and PCB area vs. inductor-based DC/DC solutions. |
| Pin-compatible upgrade path | Direct replacement for MAX660, MAX665, ICL7660 - allows drop-in migration without layout changes. |
| Industrial temperature range | –40°C to +85°C operation - ensures reliability in field-deployed instrumentation and industrial controls. |
Applications
| Op Amp Dual-Rail Supply | Handheld Data Logger |
|---|---|
Use Scenario: Generating ±5 V rails from a single 5 V battery supply to power rail-to-rail op amps in portable test equipment. IC Role / Device Role / Timing Role: Voltage inverter providing clean, regulated negative supply referenced to system ground. Use Value: Enables true bipolar signal conditioning without inductor noise or transformer bulk - critical for low-noise analog front ends. | Use Scenario: Powering ADC reference buffers and sensor interface circuitry in battery-operated environmental monitoring nodes. IC Role / Device Role / Timing Role: Doubler converting 3.3 V MCU supply to 6.6 V for high-accuracy SAR ADC reference generation. Use Value: Delivers stable 6.6 V at 50 mA with <15 Ω output resistance - maintains ADC INL/DNL specs across temperature and load variation. |
| Portable Oscilloscope Front End | Remote Sensor Signal Conditioning |
Use Scenario: Providing isolated negative bias for JFET-input amplifiers in handheld oscilloscope vertical channels. IC Role / Device Role / Timing Role: Inverting converter generating –3.3 V from main 3.3 V rail, synchronized to internal sampling clock. Use Value: Achieves <10 mVpp ripple at 100 kHz switching - preserves signal integrity for sub-mV-level measurements. | Use Scenario: Biasing piezoelectric transducers and low-noise preamps in wireless vibration sensors deployed in harsh industrial settings. IC Role / Device Role / Timing Role: Negative voltage generator powering high-impedance sensor interfaces requiring –2.5 V bias. Use Value: Maintains ≤15 Ω output resistance over –40°C to +85°C - ensures consistent transducer sensitivity and SNR across operating range. |
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; 0.8 mA max quiescent current; no OSC pin; fixed 25 kHz/125 kHz frequencies. | Limited to inverting mode only; no voltage doubling capability. | Choose for legacy DIP layouts or cost-sensitive non-doubling applications where TSSOP footprint is unavailable. |
| ICL7660CBAZ | 8-lead SOIC package; 1.2 mA max quiescent current; no FC/OSC pins; fixed ~10 kHz frequency. | Lower efficiency (~85% at 10 mA); higher output resistance (>30 Ω); no LV pin for mode selection. | Choose only for simple, low-current inverting needs where board space and efficiency are secondary to lowest unit cost. |
Compared with MAX660CPA+ and ICL7660CBAZ, ADM660ARU-REEL7 offers dual-mode operation, lower quiescent current, finer frequency control, and TSSOP-16 packaging - making it optimal for space-constrained, high-efficiency, multi-rail portable designs requiring design longevity and upgrade flexibility.
Availability
ADM660ARU-REEL7 is available at Aetrix Electronics and suitable for handheld instruments, portable computers, and remote data acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ADM660ARU-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 precision instrumentation, industrial automation, and communications markets.
The ADM660 product line delivers compact, capacitor-based DC/DC conversion for space- and power-constrained applications - designed specifically to replace bulky inductor-based solutions in portable and battery-powered systems.
FAQ
What are the valid configurations supported by ADM660ARU-REEL7?
The ADM660ARU-REEL7 supports two primary configurations: voltage inversion (VOUT = –VIN) when LV is tied to GND, and voltage doubling (VOUT = 2×VIN) when LV is tied to OUT. It requires two external low-ESR capacitors (e.g., 10 µF at 25 kHz or 2.2 µF at 120 kHz) and operates across +1.5 V to +7 V input. The ADM660ARU-REEL7 does not support shutdown functionality - that feature is exclusive to the ADM8660 variant.
Can ADM660ARU-REEL7 be used as a direct replacement for MAX660 in existing designs?
Yes, ADM660ARU-REEL7 is explicitly specified as a pin-compatible upgrade for MAX660, MAX665, and ICL7660 - but only in matching package types. While the RU-16 (TSSOP-16) footprint differs from the MAX660's 8-lead SOIC or DIP, the functional pin mapping for core signals (FC, CAP+, GND, CAP–, V+, OSC, LV, OUT) aligns with the 16-lead variant's defined pinout. Layout adaptation is required, but schematic integration is seamless.
What is the role of the LV pin on ADM660ARU-REEL7?
The LV (Low Voltage Operation) pin on ADM660ARU-REEL7 configures the device's operating mode: connecting LV to GND enables voltage inversion; connecting LV to OUT enables voltage doubling. For inputs below 3.5 V, LV must be grounded to bypass internal regulation and ensure stable operation. The ADM660ARU-REEL7 datasheet confirms LV has no function in shutdown - that capability belongs solely to the ADM8660's SD pin.
How does charge-pump frequency selection affect capacitor sizing for ADM660ARU-REEL7?
For ADM660ARU-REEL7, selecting FC = Open yields 25 kHz operation and recommends 10 µF external capacitors; selecting FC = V+ yields 120 kHz and permits reduction to 2.2 µF. This trade-off directly impacts output impedance (lower at 120 kHz) and quiescent current (higher at 120 kHz). The OSC pin further allows external capacitor or clock control - enabling custom frequencies beyond the two defaults while maintaining ADM660ARU-REEL7's specified performance envelope.
What thermal considerations apply to ADM660ARU-REEL7 in continuous 100 mA operation?
ADM660ARU-REEL7 has a RU-16 package thermal impedance (θJA) of 158°C/W and a maximum power dissipation of 500 mW (derated above +50°C). At 100 mA output into a –5 V rail from +5 V input, power dissipation is ~100 mW - resulting in ~16°C junction-to-ambient rise. No heatsinking is required in still-air conditions, but airflow or copper pour should be verified if ambient exceeds +70°C or multiple converters operate in proximity.
ADM660ARU-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- *
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
ADM660ARU-REEL7 FAQ
1.How can I place an order for ADM660ARU-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM660ARU-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 ADM660ARU-REEL7 reliable?
The price and inventory of ADM660ARU-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM660ARU-REEL7 is usually 5 days.
3.What payment methods are accepted for ADM660ARU-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM660ARU-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM660ARU-REEL7?
ADM660ARU-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM660ARU-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 ADM660ARU-REEL7?
For technical support, including ADM660ARU-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM660ARU-REEL7 requirements.
6.How does Aetrix verify that ADM660ARU-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADM660ARU-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 ADM660ARU-REEL7 meets industry standards.
7.What is the process for return or replacement of ADM660ARU-REEL7?
All ADM660ARU-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM660ARU-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 ADM660ARU-REEL7 part is unused and in its original packaging.
Return procedure for ADM660ARU-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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